feat(firecracker): show binary/KVM prerequisites in backend setup

`backend setup --backend=firecracker` only covered the network pool. Lead
with the other prerequisites: the firecracker binary (with a release
install pointer when it's not on PATH, plus a NixOS note), a /dev/kvm
check, and a reminder about the cached guest kernel + static dropbear and
mke2fs. The network pool is now step 2.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WBMWTEtQdJ4W5UrWuLHCck

.coveragerc

@@ -0,0 +1,18 @@
+[run]
+branch = True
+source = .
+
+[report]
+# Coverage policy: see docs/decisions/0004-coverage-policy.md.
+#
+# `omit` is reserved for genuinely interactive entry-point shells whose
+# bodies are `read_tty_line()` / curses prompt loops — there is no
+# behaviour to assert that a test wouldn't have to fake wholesale, so a
+# test here would inflate the number without buying confidence. This is
+# NOT a place to hide subprocess/backend orchestration: that code is
+# security-relevant and is measured via the integration suite instead
+# (run scripts/coverage.sh for the combined unit+integration number).
+omit =
+    bot_bottle/cli/tui.py
+    bot_bottle/cli/init.py
+    tests/*

.gitea/workflows/lint.yml

@@ -26,7 +26,7 @@ jobs:
       - name: Run pylint
         run: |
           # Run pylint on all Python files in the repo
-          find . -name '*.py' -not -path './.venv/*' -not -path './.git/*' | xargs pylint --fail-under=8.0 || true
+          find . -name '*.py' -not -path './.venv/*' -not -path './.git/*' | xargs pylint --fail-under=8.0
 
       - name: Run pyright
         run: |

.gitea/workflows/test.yml

@@ -39,8 +39,14 @@ jobs:
         with:
           python-version: "3.12"
 
+      - name: Install dev requirements
+        run: python3 -m pip install -r requirements-dev.txt
+
       - name: Run unit tests
-        run: python3 -m unittest discover -t . -s tests/unit -v
+        run: python3 -m coverage run -m unittest discover -t . -s tests/unit -v
+
+      - name: Report unit coverage
+        run: python3 -m coverage report -m
 
   integration:
     runs-on: ubuntu-latest
@@ -64,3 +70,32 @@ jobs:
 
       - name: Run integration tests
         run: python3 -m unittest discover -t . -s tests/integration -v
+
+  # Combined unit+integration coverage + the diff-coverage gate.
+  # See docs/decisions/0004-coverage-policy.md. The hard gate is diff
+  # coverage (new/changed lines >= 90%); the combined + critical reports
+  # are informational and degrade gracefully when the runner has no
+  # Docker (integration tests skip, those modules just read lower).
+  coverage:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+
+      - name: Install dev requirements
+        run: python3 -m pip install -r requirements-dev.txt
+
+      - name: Combined coverage (unit + integration)
+        run: PYTHON=python3 bash scripts/coverage.sh critical
+
+      - name: Diff-coverage gate (changed lines >= 90%)
+        run: |
+          git fetch --no-tags origin main:refs/remotes/origin/main
+          python3 scripts/diff_coverage.py --base origin/main --min 90

.gitea/workflows/update-badges.yml

@@ -6,8 +6,9 @@ on:
       - main
     paths:
       - '**.py'
-      - '.pylintrc'
-      - 'pyrightconfig.json'
+      - '.coveragerc'
+      # The core-coverage badge reads this list; refresh when it changes.
+      - 'scripts/critical-modules.txt'
   workflow_dispatch:
 
 jobs:
@@ -29,38 +30,39 @@ jobs:
           python -m pip install --upgrade pip
           pip install -r requirements-dev.txt
 
-      - name: Run pylint and extract score
-        id: pylint
+      - name: Run coverage and extract percentage
+        id: coverage
         run: |
-          PYLINT_OUTPUT=$(python -m pylint bot_bottle/ 2>&1) || true
-          SCORE=$(echo "$PYLINT_OUTPUT" | grep -oP '(?<=rated at )\d+\.\d+/10' | head -1)
-          echo "score=$SCORE" >> $GITHUB_OUTPUT
-          echo "Pylint score: $SCORE"
+          python -m coverage run -m unittest discover -t . -s tests/unit > /dev/null 2>&1 || true
+          PERCENT=$(python -m coverage report 2>/dev/null | grep '^TOTAL' | grep -oP '\d+(?=%)' | tail -1)
+          echo "percent=$PERCENT" >> $GITHUB_OUTPUT
+          echo "Coverage: $PERCENT%"
 
-      - name: Run pyright and check errors
-        id: pyright
+      - name: Extract core (critical-module) coverage percentage
+        id: core_coverage
         run: |
-          PYRIGHT_OUTPUT=$(python -m pyright 2>&1) || true
-          ERRORS=$(echo "$PYRIGHT_OUTPUT" | grep -oP '\d+(?= error)' | head -1)
-          echo "errors=$ERRORS" >> $GITHUB_OUTPUT
-          echo "Pyright errors: $ERRORS"
+          # Reuses the .coverage data from the previous step. The core list is
+          # the single source of truth in scripts/critical-modules.txt; every
+          # core module is unit-tested, so the unit-only run is accurate for it.
+          INCLUDE=$(grep -vE '^[[:space:]]*(#|$)' scripts/critical-modules.txt | paste -sd, -)
+          PERCENT=$(python -m coverage report --include="$INCLUDE" 2>/dev/null | grep '^TOTAL' | grep -oP '\d+(?=%)' | tail -1)
+          echo "percent=$PERCENT" >> $GITHUB_OUTPUT
+          echo "Core coverage: $PERCENT%"
 
       - name: Update badges in README
         run: |
-          PYLINT_SCORE="${{ steps.pylint.outputs.score }}"
-          PYRIGHT_ERRORS="${{ steps.pyright.outputs.errors }}"
+          COVERAGE_PERCENT="${{ steps.coverage.outputs.percent }}"
+          CORE_COVERAGE_PERCENT="${{ steps.core_coverage.outputs.percent }}"
 
-          PYLINT_SCORE_ENCODED=$(echo "$PYLINT_SCORE" | sed 's|/|%2F|g')
-
-          if [ -n "$PYLINT_SCORE_ENCODED" ]; then
-            sed -i "s|/badge/pylint-[^)]*|/badge/pylint-${PYLINT_SCORE_ENCODED}-brightgreen|" README.md
+          if [ -n "$COVERAGE_PERCENT" ]; then
+            sed -i "s|/badge/coverage-[^)]*|/badge/coverage-${COVERAGE_PERCENT}%25-brightgreen|" README.md
           fi
-          if [ -n "$PYRIGHT_ERRORS" ]; then
-            sed -i "s|/badge/pyright-[^)]*|/badge/pyright-${PYRIGHT_ERRORS}%20errors-brightgreen|" README.md
+          if [ -n "$CORE_COVERAGE_PERCENT" ]; then
+            sed -i "s|/badge/core%20coverage-[^)]*|/badge/core%20coverage-${CORE_COVERAGE_PERCENT}%25-brightgreen|" README.md
           fi
 
           echo "Updated badges:"
-          grep -E "pylint|pyright" README.md | head -2
+          grep -E "coverage" README.md | head -2
 
       - name: Commit and push badge updates
         run: |
@@ -73,7 +75,7 @@ jobs:
           else
             echo "Badge changes detected, committing..."
             git add README.md
-            MSG="chore: update quality badges"$'\n\n'"- Pylint: ${{ steps.pylint.outputs.score }}"$'\n'"- Pyright: ${{ steps.pyright.outputs.errors }} errors"$'\n\n'"[skip ci]"
+            MSG="chore: update quality badges"$'\n\n'"- Coverage: ${{ steps.coverage.outputs.percent }}%"$'\n'"- Core coverage: ${{ steps.core_coverage.outputs.percent }}%"$'\n\n'"[skip ci]"
             git commit -m "$MSG"
             git push
           fi

.gitignore

@@ -22,3 +22,4 @@ venv/
 .pytest_cache/
 .mypy_cache/
 .ruff_cache/
+.coverage

AGENTS.md

@@ -2,11 +2,18 @@
 
 ## What this is
 
-bot-bottle spins up an isolated container for running AI coding agents with a
-curated set of skills and env vars. The point is to run agents with broad
-permissions inside a sandbox, so a misbehaving agent cannot reach the host.
-A Python CLI (entry point `cli.py`, package `bot_bottle/`) orchestrates
-the container lifecycle and the copying of skills and env vars into it.
+bot-bottle spins up an isolated backend runtime for running AI coding agents
+with a curated set of skills and env vars. The point is to run agents with
+broad permissions inside a sandbox, so a misbehaving agent cannot reach the
+host. A Python CLI (entry point `cli.py`, package `bot_bottle/`) orchestrates
+the runtime lifecycle and the copying of skills and env vars into it.
+The default backend on compatible macOS hosts is macos-container:
+agents and sidecar bundles run through Apple's `container` CLI without
+requiring Docker. On KVM-capable Linux hosts the default is firecracker:
+agents run in a Firecracker microVM reached over SSH on a point-to-point
+TAP, while the sidecar bundle still uses Docker. The legacy Docker
+backend remains available with `BOT_BOTTLE_BACKEND=docker` or
+`--backend=docker`.
 
 ## Goals
 
@@ -17,7 +24,7 @@ the container lifecycle and the copying of skills and env vars into it.
 ## Non-goals
 
 - Communicating between agents directly
-- Self hosted VMs (v1 uses local Docker containers, not VMs)
+- Removing the Docker backend
 - Advanced agent auditing (lean on git history for auditing)
 
 ## Repository layout

Dockerfile.sidecars

@@ -18,13 +18,13 @@
 #   /git-gate-entrypoint.sh              docker-cp'd at start time
 #   /git-gate/creds/*                    docker-cp'd at start time
 #   /git/*                               bare repos, populated at runtime
-#   /run/supervise/queue/                bind-mounted at run time
+#   /run/supervise/bot-bottle.db         bind-mounted at run time
 #   /home/mitmproxy/.mitmproxy/          mitmproxy CA dir
 #
 # Exposed ports inside the container:
 #   9099  egress (mitmproxy, agent-facing HTTPS proxy)
 #   9418  git-gate (git-daemon)
-#   9420  git-gate smart HTTP (smolmachines agent-facing transport)
+#   9420  git-gate smart HTTP (VM-backend agent-facing transport)
 #   9100  supervise (MCP HTTP)
 
 # Stage 1: gitleaks binary. The upstream gitleaks image is alpine
@@ -62,9 +62,16 @@ COPY --from=gitleaks-src /usr/bin/gitleaks /usr/bin/gitleaks
 # top-level siblings (absolute imports), matching the prior
 # Dockerfile.egress / Dockerfile.supervise layout.
 COPY bot_bottle/egress_addon_core.py /app/egress_addon_core.py
+COPY bot_bottle/egress_dlp_config.py /app/egress_dlp_config.py
 COPY bot_bottle/egress_addon.py      /app/egress_addon.py
 COPY bot_bottle/dlp_detectors.py     /app/dlp_detectors.py
 COPY bot_bottle/yaml_subset.py       /app/yaml_subset.py
+COPY bot_bottle/migrations.py        /app/migrations.py
+COPY bot_bottle/db_store.py          /app/db_store.py
+COPY bot_bottle/supervise_types.py   /app/supervise_types.py
+COPY bot_bottle/queue_store.py       /app/queue_store.py
+COPY bot_bottle/audit_store.py       /app/audit_store.py
+COPY bot_bottle/store_manager.py     /app/store_manager.py
 COPY bot_bottle/supervise.py         /app/supervise.py
 COPY bot_bottle/supervise_server.py  /app/supervise_server.py
 COPY bot_bottle/sidecar_init.py      /app/sidecar_init.py
@@ -80,7 +87,7 @@ RUN mkdir -p \
       /etc/git-gate \
       /git-gate/creds \
       /git \
-      /run/supervise/queue \
+      /run/supervise \
       /home/mitmproxy/.mitmproxy
 
 # Documentation only — the compose renderer publishes whichever

README.md

@@ -5,8 +5,8 @@
 # bot-bottle
 
 [![test](https://gitea.dideric.is/didericis/bot-bottle/actions/workflows/test.yml/badge.svg?branch=main)](https://gitea.dideric.is/didericis/bot-bottle/actions?workflow=test.yml)
-[![pylint](https://img.shields.io/badge/pylint-9.95%2F10-brightgreen)](https://github.com/PyCQA/pylint)
-[![pyright](https://img.shields.io/badge/pyright-0%20errors-brightgreen)](https://github.com/microsoft/pyright)
+[![coverage](https://img.shields.io/badge/coverage-84%25-brightgreen)](https://coverage.readthedocs.io/)
+[![core coverage](https://img.shields.io/badge/core%20coverage-95%25-brightgreen)](https://gitea.dideric.is/didericis/bot-bottle/src/branch/main/docs/decisions/0004-coverage-policy.md)
 
 **Problem:** Developer wants to run a coding agent without supervision, but they don't want a prompt injected or misbehaving agent wrecking their environment or exfiltrating sensitive data.
 
@@ -14,20 +14,29 @@
 
 ## Features
 
-- **Per-bottle egress allowlist** — TLS-bumped HTTP/HTTPS chokepoint with a per-manifest host allowlist and request-body DLP scanner; DoH and arbitrary hosts blocked by default.
+- **Per-bottle egress allowlist** — TLS-bumped HTTP/HTTPS chokepoint with a per-manifest host allowlist; per-route path/method/header `matches` filtering; outbound DLP scanning for known tokens and secrets, inbound DLP scanning for prompt-injection attempts; DoH and arbitrary hosts blocked by default.
+- **Per-route token-match policy** — each egress route picks what happens when the outbound DLP catches a token via `dlp.outbound_on_match`: `supervise` (default) holds the request and surfaces it in `./cli.py supervise` for approval (an approved value is remembered for the life of the proxy); `redact` scrubs the value and forwards; `block` is a hard `403`. Cuts false-positive friction without weakening default-deny.
 - **Tokens the agent never sees** — host secrets live in a sidecar; the agent dials `http://sidecar:9099/<path>` and the proxy strips inbound `Authorization` and injects the real token before forwarding. `printenv` in the agent shows proxy URLs only.
 - **Gitleaks-scanned push (git-gate)** — `bottle.git` remotes route through a per-bottle `git daemon` that gitleaks-scans incoming refs pre-receive and forwards clean refs upstream over SSH. The agent never holds the upstream credential.
 - **Manifest-scoped skills + secrets** — each bottle declares its skills, env, git identity, remotes, and egress routes; unknown keys die at load.
 - **Trust boundary at `$HOME`** — bottles (credentials, egress, remotes) live only under `~/.bot-bottle/bottles/`. Repos may ship agents but not bottles, so a cloned repo can't redirect an env var to an attacker host.
 - **Composable bottles (`extends:`)** — keep provider/runtime policy in one base bottle (e.g. `claude.md`) and overlay task bottles on top.
-- **Parallel, isolated bottles** — each bottle is its own per-agent Docker `--internal` network; bottles don't share state or talk to each other.
+- **Parallel, isolated bottles** — each bottle runs in its own backend-owned isolation boundary; bottles don't share state or talk to each other.
 - **Provider templates (Claude, Codex)** — `Dockerfile.claude` / `Dockerfile.codex`, or a bottle-supplied Dockerfile. Claude auth via long-lived OAuth token; Codex via opt-in host device-auth forwarding.
 - **gVisor auto-detect** — on Linux hosts where `runsc` is registered with Docker, every bottle launches under it for a userspace syscall barrier; no manifest config required.
-- **Smolmachines backend (macOS)** — opt-in `BOT_BOTTLE_BACKEND=smolmachines` runs the agent in a libkrun micro-VM with the sidecar bundle still in Docker.
+- **Apple Container backend (macOS default when available)** — runs the agent and sidecar bundle with Apple's `container` CLI, using a host-only agent network plus a separate sidecar egress network.
+- **Firecracker backend (Linux default when available)** — runs the agent in a KVM Firecracker microVM reached over SSH on a point-to-point TAP, with the sidecar bundle in Docker. A dedicated, fail-closed `nftables` table isolates the guest, closing the raw DNS/IP exfiltration gap that exists in the legacy Docker backend. Requires KVM (`/dev/kvm`) and a one-time privileged network-pool setup.
+- **Legacy Docker backend** — still available for examples, CI, and hosts without Apple Container or KVM via `BOT_BOTTLE_BACKEND=docker` or `--backend=docker`.
 
 ## Architecture
 
-A bottle is two containers per agent: an `agent` container, and a `sidecars` container that bundles egress + git-gate + supervise behind a Python init supervisor. They share a per-agent Docker `--internal` network; the agent has no default route off-box.
+On the default macOS Apple Container backend, a bottle is an agent container on a host-only internal network plus a sidecar bundle attached to both that internal network and a NAT egress network. The agent gets HTTP(S)_PROXY and CA bundle env vars pointing at the sidecar's internal-network IP, so HTTP/HTTPS traffic flows through the sidecar instead of direct egress. `bottle.git` / git-gate is intentionally deferred on this backend until a safe Apple Container key-delivery path exists.
+
+On the Firecracker backend, a bottle is an agent microVM plus a Docker sidecar bundle for egress, git-gate, and supervise. The VM reaches the sidecars over a per-bottle point-to-point TAP link; a dedicated fail-closed `nftables` table (`inet bot_bottle_fc`) confines the guest to that link, so nothing leaves the box except through the sidecars. The TAP pool and nft table are provisioned once (root); per-launch needs no privilege.
+
+On the legacy Docker backend, the same logical bottle is two containers per agent: an `agent` container and a `sidecars` container. They share a per-agent Docker `--internal` network; the agent has no default route off-box.
+
+The Docker topology looks like this:
 
 ```
                             host  ( ./cli.py )
@@ -62,7 +71,24 @@ When the agent exits, `cli.py` tears down every sidecar and both networks; nothi
 
 ## Quickstart
 
-Requires Docker on the host and a long-lived Claude Code OAuth token (`claude setup-token`) exported as `BOT_BOTTLE_CLAUDE_OAUTH_TOKEN`.
+On compatible macOS hosts, the default backend requires Apple's `container` CLI and does not require Docker. The Firecracker backend (Linux) requires Docker on the host for the sidecar bundle plus the `firecracker` binary and KVM. The legacy Docker backend requires Docker. Claude bottles also need a long-lived Claude Code OAuth token (`claude setup-token`) exported as `BOT_BOTTLE_CLAUDE_OAUTH_TOKEN`.
+
+Use `BOT_BOTTLE_BACKEND=docker ./cli.py start <agent>` on hosts where neither Apple Container nor KVM is available and Docker is the desired backend.
+
+### Firecracker on Linux
+
+On Linux, a KVM-capable host defaults to the Firecracker backend. It needs:
+
+- **`/dev/kvm`** present and accessible. Load `kvm-intel` or `kvm-amd` (and enable virtualization in BIOS/firmware). The invoking user must be in the `kvm` group: `sudo usermod -aG kvm "$USER"` then re-login. bot-bottle preflights this and reports exactly what's missing.
+- **`firecracker`** on `PATH`: grab a release from <https://github.com/firecracker-microvm/firecracker/releases>. Start flows print this pointer when the binary is missing.
+- **Docker** for the sidecar bundle and image build.
+- **A one-time privileged network setup** — the per-bottle TAP pool plus the fail-closed `nftables` isolation table. Run `./cli.py backend setup --backend=firecracker` for the host-appropriate config (a NixOS module, a `sudo` script elsewhere); `./cli.py backend status --backend=firecracker` reports what's present, including whether the pool range collides with an existing route. The pool defaults to `10.243.0.0/16` (an obscure RFC-1918 block that dodges docker/libvirt/LAN and, deliberately, Tailscale's `100.64.0.0/10` CGNAT range); override with `BOT_BOTTLE_FC_IP_BASE` if it clashes on your host.
+
+```sh
+BOT_BOTTLE_BACKEND=firecracker ./cli.py start <agent>
+```
+
+> **NixOS:** enable `virtualisation.docker`, ensure the KVM module is loaded (`boot.kernelModules = [ "kvm-intel" ];` or `kvm-amd`), and add your user to the `kvm` and `docker` groups. For the network pool, consume the flake module — `imports = [ inputs.bot-bottle.nixosModules.firecracker-netpool ]; services.bot-bottle-firecracker = { enable = true; owner = "you"; };` — then `nixos-rebuild switch` (imperative nft/TAP rules don't survive a rebuild; channel users can `imports = [ <bot-bottle>/nix/firecracker-netpool.nix ]`). `firecracker` isn't in nixpkgs by default as a user binary — install the release binary (pin the version) and put it on `PATH`.
 
 ```sh
 ./cli.py start <agent>   # builds the image on first run, drops you into claude
@@ -96,8 +122,15 @@ egress:
   routes:
     - host: gitea.dideric.is
       auth:
-        scheme: token
+        scheme: token        # Bearer | token
         token_ref: BOT_BOTTLE_GITEA_TOKEN
+      matches:               # optional — restrict to specific paths/methods/headers
+        - paths:
+            - {type: prefix, value: /api/v1/}
+          methods: [GET, POST, PATCH, DELETE]
+      dlp:                   # optional — per-route detector overrides (default: all on)
+        outbound_detectors: [token_patterns, known_secrets]
+        inbound_detectors: false   # disable response scanning for this host
 ---
 
 The `gitea-dev` bottle. Provider auth via the inherited Claude route;
@@ -116,6 +149,26 @@ skills:
 You help maintain Gitea-hosted projects.
 ````
 
+**Egress route fields:**
+
+| Field | Required | Description |
+|---|---|---|
+| `host` | yes | Hostname to allowlist. One entry per host. |
+| `role` | no | Reserved for future use. The key is recognised but any value is currently rejected at load. Provider auth routes (e.g. Claude's `api.anthropic.com`) are injected automatically from `agent_provider.auth_token`, not via `role`. |
+| `auth.scheme` | when `auth` present | `Bearer` or `token`. Injected by the proxy; the agent never sees the value. |
+| `auth.token_ref` | when `auth` present | Env-var name holding the secret on the host. |
+| `matches` | no | Array of `{paths, methods, headers}` filters. A request must match at least one entry (if any are given) to be forwarded. |
+| `matches[].paths` | no | Array of `{type, value}`. `type` is `prefix` (default), `exact`, or `regex`. |
+| `matches[].methods` | no | Array of HTTP method strings, e.g. `[GET, POST]`. |
+| `matches[].headers` | no | Array of `{name, value, type}`. `type` is `exact` (default) or `regex`. |
+| `dlp` | no | Per-route DLP overrides. Omit to use defaults (all detectors on). |
+| `dlp.outbound_detectors` | no | `false` disables outbound scanning; list restricts to named detectors (`token_patterns`, `known_secrets`). |
+| `dlp.inbound_detectors` | no | `false` disables inbound scanning; list restricts to named detectors (`naive_injection_detection`). |
+| `dlp.outbound_on_match` | no | What to do when an outbound token is detected: `supervise` (default for manifest routes — hold for operator approval), `redact` (scrub the value and forward), or `block` (hard 403). Agent-provider routes (e.g. `api.anthropic.com`) default to `redact`. |
+| `git.fetch` | no | `true` permits smart HTTP clone/fetch (`git-upload-pack`) for this host. Push (`git-receive-pack`) remains blocked. |
+
+When an outbound DLP detector matches a token, the route's `dlp.outbound_on_match` policy decides what happens. Under the default `supervise`, the proxy queues an `egress-token-allow` proposal for the operator's `./cli.py supervise` TUI and holds the request open until it is answered (or `EGRESS_TOKEN_ALLOW_TIMEOUT_SECONDS`, default 300s, elapses — after which it fails closed). The operator never sees the raw token, only the host, method, path, and a redacted snippet; approving adds the value to an in-memory safelist for the life of the egress proxy. Under `redact`, the matched value is scrubbed from the body, headers, and path and the request is forwarded (failing closed if a match lands somewhere unredactable, like the hostname). Under `block` it stays a hard `403`. Structural blocks (CRLF injection) and not-in-allowlist host blocks are always hard `403`s regardless of policy.
+
 More examples in `examples/`. Full design lives under `docs/prds/`; the trust-boundary rationale is in `docs/prds/0011-per-file-md-manifest.md`.
 
 ## Trademarks

bot_bottle/agent_provider.py

@@ -20,6 +20,7 @@ Per PRD 0050 the per-provider implementations live under
 from __future__ import annotations
 
 import importlib.util
+import inspect
 import os
 import shlex
 import tempfile
@@ -37,13 +38,19 @@ if TYPE_CHECKING:
 
 PROVIDER_CLAUDE = "claude"
 PROVIDER_CODEX = "codex"
-PROVIDER_TEMPLATES = frozenset({PROVIDER_CLAUDE, PROVIDER_CODEX})
+PROVIDER_PI = "pi"
+PROVIDER_TEMPLATES = frozenset({PROVIDER_CLAUDE, PROVIDER_CODEX, PROVIDER_PI})
 
 # Hosts that egress injects the host ChatGPT bearer on when Codex
 # forward_host_credentials is enabled. Pipelock must pass these through
 # (no TLS MITM) or its header DLP blocks the injected JWT.
 CODEX_HOST_CREDENTIAL_HOSTS = ("api.openai.com", "chatgpt.com")
-PromptMode = Literal["append_file", "read_prompt_file"]
+PromptMode = Literal[
+    "append_file",
+    "read_prompt_file",
+    "print_read_prompt_file",
+    "append_system_prompt",
+]
 
 
 @dataclass(frozen=True)
@@ -51,11 +58,9 @@ class AgentProviderRuntime:
     template: str
     command: str
     image: str
-    dockerfile: str
     prompt_mode: PromptMode
     bypass_args: tuple[str, ...]
     resume_args: tuple[str, ...]
-    remote_control_args: tuple[str, ...]
 
 
 @dataclass(frozen=True)
@@ -103,7 +108,12 @@ class AgentProvisionPlan:
     prompt_mode: PromptMode
     image: str
     dockerfile: str
+    guest_home: str
+    instance_name: str
+    prompt_file: Path
     guest_env: dict[str, str]
+    has_prompt: bool = False
+    startup_args: tuple[str, ...] = ()
     env_vars: dict[str, str] = field(default_factory=dict)
     dirs: tuple[AgentProvisionDir, ...] = ()
     files: tuple[AgentProvisionFile, ...] = ()
@@ -127,13 +137,31 @@ class AgentProvider(ABC):
         """The static command / image / prompt-mode table for this
         template."""
 
+    @property
+    def guest_home(self) -> str:
+        """In-guest home directory for the agent user. Defaults to
+        `/home/node` to match the Debian-based bot-bottle-* images
+        (USER node). Override for plugins whose image runs as a
+        different user."""
+        return "/home/node"
+
+    @property
+    def dockerfile(self) -> Path:
+        """Path to the provider's Dockerfile.
+
+        Default: the `Dockerfile` file next to this provider's
+        `agent_provider.py` module. Override to point at a non-standard
+        path."""
+        return Path(inspect.getfile(type(self))).parent / "Dockerfile"
+
     @abstractmethod
     def provision_plan(
         self,
         *,
         dockerfile: str,
         state_dir: Path,
-        guest_home: str,
+        instance_name: str,
+        prompt_file: Path,
         guest_env: dict[str, str] | None = None,
         auth_token: str = "",
         forward_host_credentials: bool = False,
@@ -141,6 +169,7 @@ class AgentProvider(ABC):
         trusted_project_path: str = "",
         label: str = "",
         color: str = "",
+        provider_settings: dict[str, object] | None = None,
     ) -> AgentProvisionPlan:
         """Build the declarative AgentProvisionPlan for one launch.
         Backends call this during `prepare` and consume the result as
@@ -180,6 +209,15 @@ class AgentProvider(ABC):
         the supervise sidecar is reachable. No-op when
         `plan.supervise_plan is None`."""
 
+    @abstractmethod
+    def headless_prompt(self, prompt: str) -> list[str]:
+        """Return the agent CLI args that deliver `prompt` as the
+        initial task in a non-interactive (headless) session.
+
+        Called only when ``--prompt`` is passed to
+        ``./cli.py start --headless``; the returned args are appended
+        after the provider's ``bypass_args`` and ``startup_args``."""
+
     def provision_ca(self, bottle: "Bottle", plan: "BottlePlan") -> None:
         """Install the egress MITM CA into the agent's trust store.
 
@@ -189,6 +227,10 @@ class AgentProvider(ABC):
         from .backend.util import AGENT_CA_PATH, log_ca_fingerprint, select_ca_cert
         from .log import die
         cert_host_path, label = select_ca_cert(plan.egress_plan)
+        # Ensure the target directory exists. A backend's rootfs build
+        # may not preserve the empty /usr/local/share/ca-certificates/
+        # directory; mkdir -p is idempotent and safe for all backends.
+        bottle.exec("mkdir -p /usr/local/share/ca-certificates", user="root")
         bottle.cp_in(str(cert_host_path), AGENT_CA_PATH)
         r = bottle.exec(
             f"chmod 644 {AGENT_CA_PATH} && update-ca-certificates",
@@ -205,25 +247,12 @@ class AgentProvider(ABC):
     def provision_git(self, bottle: "Bottle", plan: "BottlePlan") -> None:
         """Configure git inside the agent container.
 
-        Default: Debian/node — copies .git when --cwd is set, writes the
-        git-gate insteadOf gitconfig, sets user.name/email as node.
-        Override for images that run as a different user or use a
-        non-standard home directory."""
+        Default: Debian/node — writes the git-gate insteadOf gitconfig
+        and sets user.name/email as node. Workspace copy runs through
+        BottleBackend.provision_workspace against the running bottle."""
         from .log import info
-        workspace = plan.workspace_plan
-        if workspace.enabled and workspace.copy_git and workspace.has_host_git_dir:
-            guest_workspace_git = f"{workspace.guest_path}/.git"
-            host_git = str(workspace.host_path / ".git")
-            info(f"copying {host_git} -> {bottle.name}:{guest_workspace_git}")
-            bottle.exec(f"mkdir -p {shlex.quote(workspace.guest_path)}", user="root")
-            bottle.cp_in(host_git, guest_workspace_git)
-            bottle.exec(
-                f"chown -R {shlex.quote(workspace.owner)} "
-                f"{shlex.quote(guest_workspace_git)}",
-                user="root",
-            )
 
-        manifest_bottle = plan.spec.manifest.bottle_for(plan.spec.agent_name)
+        manifest_bottle = plan.manifest.bottle
         if manifest_bottle.git:
             from .git_gate import GIT_GATE_HOSTNAME, git_gate_render_gitconfig
             gate_host = getattr(plan, "git_gate_insteadof_host", GIT_GATE_HOSTNAME)
@@ -310,6 +339,9 @@ def get_provider(template: str) -> AgentProvider:
     if template == PROVIDER_CODEX:
         from .contrib.codex.agent_provider import CodexAgentProvider
         return CodexAgentProvider()
+    if template == PROVIDER_PI:
+        from .contrib.pi.agent_provider import PiAgentProvider
+        return PiAgentProvider()
     raise ValueError(f"unknown agent provider template: {template!r}")
 
 
@@ -317,12 +349,13 @@ def runtime_for(template: str) -> AgentProviderRuntime:
     return get_provider(template).runtime
 
 
-def agent_provision_plan(
+def build_agent_provision_plan(
     *,
     template: str,
     dockerfile: str,
     state_dir: Path,
-    guest_home: str,
+    instance_name: str,
+    prompt_file: Path,
     guest_env: dict[str, str] | None = None,
     auth_token: str = "",
     forward_host_credentials: bool = False,
@@ -330,13 +363,15 @@ def agent_provision_plan(
     trusted_project_path: str = "",
     label: str = "",
     color: str = "",
+    provider_settings: dict[str, object] | None = None,
 ) -> AgentProvisionPlan:
     """Back-compat shim — `prepare` callers stay the same; the work
     now lives on the provider plugin."""
     return get_provider(template).provision_plan(
         dockerfile=dockerfile,
         state_dir=state_dir,
-        guest_home=guest_home,
+        instance_name=instance_name,
+        prompt_file=prompt_file,
         guest_env=guest_env,
         auth_token=auth_token,
         forward_host_credentials=forward_host_credentials,
@@ -344,9 +379,19 @@ def agent_provision_plan(
         trusted_project_path=trusted_project_path,
         label=label,
         color=color,
+        provider_settings=provider_settings,
     )
 
 
+def provider_startup_args(
+    provider_settings: dict[str, object] | None,
+) -> tuple[str, ...]:
+    raw = (provider_settings or {}).get("startup_args", ())
+    if not isinstance(raw, (list, tuple)):
+        return ()
+    return tuple(arg for arg in raw if isinstance(arg, str))
+
+
 def prompt_args(
     prompt_mode: PromptMode,
     prompt_path: str | None,
@@ -358,7 +403,11 @@ def prompt_args(
     if prompt_mode == "append_file":
         return ["--append-system-prompt-file", prompt_path]
     if prompt_mode == "read_prompt_file":
-        if argv and "resume" in argv:
+        if argv and ("resume" in argv or "remote-control" in argv):
             return []
         return [f"Read and follow the instructions in {prompt_path}."]
+    if prompt_mode == "print_read_prompt_file":
+        return ["-p", f"Read and follow the instructions in {prompt_path}."]
+    if prompt_mode == "append_system_prompt":
+        return ["--append-system-prompt", prompt_path]
     raise ValueError(f"unknown provider prompt mode: {prompt_mode}")

bot_bottle/audit_store.py

@@ -0,0 +1,91 @@
+"""SQLite-backed audit store for supervise (PRD 0013)."""
+
+from __future__ import annotations
+
+import sqlite3
+from pathlib import Path
+
+try:
+    from .supervise_types import AuditEntry, host_db_path
+    from .db_store import DbStore
+    from .migrations import TableMigrations
+except ImportError:
+    from supervise_types import AuditEntry, host_db_path  # type: ignore[import-not-found]  # pylint: disable=import-error,no-name-in-module
+    from db_store import DbStore  # type: ignore[import-not-found]  # pylint: disable=import-error,no-name-in-module
+    from migrations import TableMigrations  # type: ignore[import-not-found]  # pylint: disable=import-error,no-name-in-module
+
+
+class AuditStore(DbStore):
+    """SQLite-backed persistent store for supervise audit entries."""
+
+    def __init__(self, db_path: Path | None = None) -> None:
+        # One entry per schema version: migrations[0] brings a fresh DB to
+        # version 1, [1] to version 2, etc.  Add new entries at the end; never
+        # edit existing ones.
+        migrations = TableMigrations("audit_store", [
+            # v1 — initial schema
+            """
+            CREATE TABLE IF NOT EXISTS supervise_audit_entries (
+                id INTEGER PRIMARY KEY AUTOINCREMENT,
+                timestamp TEXT NOT NULL,
+                bottle_slug TEXT NOT NULL,
+                component TEXT NOT NULL,
+                operator_action TEXT NOT NULL,
+                operator_notes TEXT NOT NULL,
+                justification TEXT NOT NULL,
+                diff TEXT NOT NULL
+            )
+            """,
+        ])
+        super().__init__(db_path or host_db_path(), migrations)
+
+    def write_audit_entry(self, entry: AuditEntry) -> Path:
+        with self._connect() as conn:
+            conn.execute(
+                """
+                INSERT INTO supervise_audit_entries (
+                    timestamp, bottle_slug, component, operator_action,
+                    operator_notes, justification, diff
+                ) VALUES (?, ?, ?, ?, ?, ?, ?)
+                """,
+                (
+                    entry.timestamp,
+                    entry.bottle_slug,
+                    entry.component,
+                    entry.operator_action,
+                    entry.operator_notes,
+                    entry.justification,
+                    entry.diff,
+                ),
+            )
+        self._chmod()
+        return self.db_path
+
+    def read_audit_entries(self, component: str, slug: str) -> list[AuditEntry]:
+        if not self.db_path.is_file():
+            return []
+        with self._connect() as conn:
+            rows = conn.execute(
+                """
+                SELECT * FROM supervise_audit_entries
+                WHERE component = ? AND bottle_slug = ?
+                ORDER BY id
+                """,
+                (component, slug),
+            ).fetchall()
+        return [self._row_to_entry(row) for row in rows]
+
+    @staticmethod
+    def _row_to_entry(row: sqlite3.Row) -> AuditEntry:
+        return AuditEntry(
+            timestamp=row["timestamp"],
+            bottle_slug=row["bottle_slug"],
+            component=row["component"],
+            operator_action=row["operator_action"],
+            operator_notes=row["operator_notes"],
+            justification=row["justification"],
+            diff=row["diff"],
+        )
+
+
+__all__ = ["AuditStore"]

bot_bottle/backend/__init__.py

@@ -24,14 +24,17 @@ backend exposes five methods:
       enough metadata for callers (CLI `list active`, dashboard
       agents pane) to render a row.
 
-Selection is driven by `--backend` on `start` or
-BOT_BOTTLE_BACKEND (env var; default "docker"). Per PRD 0003 the
-manifest does not carry a backend field; the host picks.
+Selection is driven by `--backend` on `start` or BOT_BOTTLE_BACKEND
+(env var). When neither is set, compatible macOS hosts default to
+`macos-container`; Linux hosts with KVM default to `firecracker`;
+otherwise `docker`. Per PRD 0003 the manifest does not carry a
+backend field; the host picks.
 """
 
 from __future__ import annotations
 
 import os
+import shlex
 import sys
 from abc import ABC, abstractmethod
 from contextlib import AbstractContextManager
@@ -39,14 +42,15 @@ from dataclasses import dataclass
 from pathlib import Path
 from typing import Any, Generic, Sequence, TypeVar
 
-from ..agent_provider import AgentProvisionPlan, get_provider
+from ..agent_provider import AgentProvisionPlan, get_provider, build_agent_provision_plan
 from ..egress import EgressPlan
 from ..git_gate import GitGatePlan
 from ..log import die, info
-from ..manifest import GitEntry, Manifest
+from ..manifest import Manifest, ManifestIndex
 from ..supervise import SupervisePlan
 from ..util import expand_tilde
-from ..workspace import WorkspacePlan
+from ..env import resolve_env, ResolvedEnv
+from ..workspace import WorkspacePlan, workspace_plan
 from .print_util import print_multi, visible_agent_env_names
 from .util import host_skill_dir
 
@@ -58,7 +62,7 @@ class BottleSpec:
     Resolved values (image names, container name, scratch paths, runsc
     availability) live on the plan, not the spec."""
 
-    manifest: Manifest
+    manifest: ManifestIndex
     agent_name: str
     copy_cwd: bool
     user_cwd: str
@@ -69,6 +73,12 @@ class BottleSpec:
     identity: str = ""
     label: str = ""
     color: str = ""
+    # Ordered bottle names selected at launch (issue #269). When non-empty
+    # they are merged in order and replace the agent's `bottle:` field.
+    bottle_names: tuple[str, ...] = ()
+    # True when launched via --headless (no TTY, no interactive prompts).
+    # The git-gate host-key preflight uses this to error rather than prompt.
+    headless: bool = False
 
 
 @dataclass(frozen=True)
@@ -77,35 +87,41 @@ class BottlePlan(ABC):
     (e.g. DockerBottlePlan) add backend-specific resolved fields."""
 
     spec: BottleSpec
+    manifest: Manifest
     stage_dir: Path
-    guest_home: str
     git_gate_plan: GitGatePlan
 
+    @property
+    def guest_home(self) -> str:
+        return self.agent_provision.guest_home
+
     @property
     def git_gate_insteadof_host(self) -> str:
         """Host (and optional port) used in git-gate insteadOf URLs.
-        Docker uses the compose-network DNS alias; smolmachines
-        overrides with a loopback IP:port since TSI has no DNS."""
+        Docker uses the compose-network DNS alias; VM backends may
+        override with an IP:port when the guest has no DNS."""
         return "git-gate"
 
     @property
     def git_gate_insteadof_scheme(self) -> str:
         """URL scheme for git-gate insteadOf rewrites. 'git' for
-        Docker (git daemon); 'http' for smolmachines (HTTP proxy
+        Docker (git daemon); VM backends may override (e.g. 'http'
         over a published host port)."""
         return "git"
     egress_plan: EgressPlan
     supervise_plan: SupervisePlan | None
     agent_provision: AgentProvisionPlan
-    workspace_plan: WorkspacePlan
 
-    def print(self, *, remote_control: bool) -> None:
+    @property
+    def workspace_plan(self) -> WorkspacePlan:
+        return workspace_plan(self.spec, guest_home=self.guest_home)
+
+    def print(self) -> None:
         """Render the y/N preflight summary to stderr."""
-        del remote_control
         spec = self.spec
-        manifest = spec.manifest
-        agent = manifest.agents[spec.agent_name]
-        bottle = manifest.bottle_for(spec.agent_name)
+        manifest = self.manifest
+        agent = manifest.agent
+        bottle = manifest.bottle
 
         env_names = visible_agent_env_names(
             sorted(
@@ -120,9 +136,13 @@ class BottlePlan(ABC):
         info(f"provider        : {self.agent_provision.template}")
         print_multi("env             ", env_names)
         print_multi("skills          ", list(agent.skills))
-        info(f"bottle          : {agent.bottle}")
+        effective_bottles = (
+            list(spec.bottle_names) if spec.bottle_names
+            else ([agent.bottle] if agent.bottle else [])
+        )
+        print_multi("bottle          ", effective_bottles)
 
-        identity = manifest.git_identity_summary(spec.agent_name)
+        identity = manifest.git_identity_summary()
         if identity:
             info(f"  git identity  : {identity}")
 
@@ -163,8 +183,8 @@ class BottleCleanupPlan(ABC):
 class ExecResult:
     """Captured result of `Bottle.exec`. Backend-neutral: the Docker
     impl populates it from a `subprocess.CompletedProcess`, but a
-    future fly/smolmachines backend could populate it from any source
-    that produces a returncode + captured streams."""
+    VM backend could populate it from any source that produces a
+    returncode + captured streams."""
 
     returncode: int
     stdout: str
@@ -182,7 +202,7 @@ class ActiveAgent:
     of sidecar daemons currently up for this bottle (`egress`,
     `git-gate`, `supervise`); the dashboard uses it to
     gate edit verbs. `backend_name` is the matching key in
-    `_BACKENDS` (`docker` / `smolmachines`) — used by the active-
+    `_BACKENDS` (`docker` / `firecracker` / `macos-container`) — used by the active-
     list rendering to disambiguate and by the dashboard's
     re-attach path."""
 
@@ -263,27 +283,108 @@ class BottleBackend(ABC, Generic[PlanT, CleanupT]):
 
     name: str
 
-    def prepare(self, spec: BottleSpec, *, stage_dir: Path) -> PlanT:
+    def prepare(self, spec: BottleSpec, stage_dir: Path) -> PlanT:
         """Template method: run cross-backend host-side validation, then
         delegate to the subclass's `_resolve_plan` for the
         backend-specific resolution (names, scratch files, etc.). The
         validation step is enforced here so a future backend cannot
         accidentally skip it. No remote/runtime resources are created."""
-        self._validate(spec)
-        return self._resolve_plan(spec, stage_dir=stage_dir)
+        from .resolve_common import (
+            merge_provision_env_vars,
+            mint_slug,
+            prepare_agent_state_dir,
+            prepare_egress,
+            prepare_git_gate,
+            prepare_supervise,
+            resolve_manifest_dockerfile,
+            write_launch_metadata,
+        )
 
-    def _validate(self, spec: BottleSpec) -> None:
-        """Cross-backend pre-launch checks. Confirms the agent exists,
-        the named skills are present on the host, and every git
-        IdentityFile resolves. Subclasses with additional preconditions
-        should override and call `super()._validate(spec)` first."""
-        manifest = spec.manifest
-        manifest.require_agent(spec.agent_name)
-        agent = manifest.agents[spec.agent_name]
-        bottle = manifest.bottle_for(spec.agent_name)
-        self._validate_skills(agent.skills)
-        self._validate_git_entries(bottle.git)
-        self._validate_agent_provider_dockerfile(spec)
+        manifest = self._validate(spec)
+
+        self._preflight()
+
+        from ..git_gate_host_key import preflight_host_keys
+        manifest = preflight_host_keys(
+            manifest,
+            headless=spec.headless,
+            home_md=spec.manifest.home_md,
+        )
+
+        manifest_bottle = manifest.bottle
+        manifest_agent_provider = manifest_bottle.agent_provider
+        agent_provider = get_provider(manifest_agent_provider.template)
+        resolved_env = resolve_env(manifest)
+        workspace = workspace_plan(spec, guest_home=agent_provider.guest_home)
+
+        slug = mint_slug(spec)
+        write_launch_metadata(slug, spec, compose_project="", backend=self.name)
+
+        # Manifest may override the Dockerfile per-bottle; otherwise fall
+        # back to the provider plugin's bundled Dockerfile (next to its
+        # agent_provider.py module).
+        if manifest_agent_provider.dockerfile:
+            agent_dockerfile_path = resolve_manifest_dockerfile(
+                manifest_agent_provider.dockerfile, spec,
+            )
+        else:
+            agent_dockerfile_path = str(agent_provider.dockerfile)
+
+        agent_dir, prompt_file = prepare_agent_state_dir(slug, manifest)
+
+        agent_provision_plan = build_agent_provision_plan(
+            template=manifest_agent_provider.template,
+            dockerfile=agent_dockerfile_path,
+            state_dir=agent_dir,
+            instance_name=f"bot-bottle-{slug}",
+            prompt_file=prompt_file,
+            guest_env=self._build_guest_env(resolved_env),
+            forward_host_credentials=manifest_agent_provider.forward_host_credentials,
+            auth_token=manifest_agent_provider.auth_token,
+            host_env=dict(os.environ),
+            trusted_project_path=workspace.workdir,
+            label=spec.label,
+            color=spec.color,
+            provider_settings=manifest_agent_provider.settings,
+        )
+        agent_provision_plan = merge_provision_env_vars(agent_provision_plan)
+        egress_plan = prepare_egress(manifest_bottle, slug, agent_provision_plan)
+        supervise_plan = prepare_supervise(manifest_bottle, slug)
+        git_gate_plan = prepare_git_gate(manifest_bottle, slug)
+
+        return self._resolve_plan(
+            spec,
+            manifest=manifest,
+            slug=slug,
+            resolved_env=resolved_env,
+            agent_provision_plan=agent_provision_plan,
+            egress_plan=egress_plan,
+            supervise_plan=supervise_plan,
+            git_gate_plan=git_gate_plan,
+            stage_dir=stage_dir,
+        )
+
+    def _build_guest_env(self, resolved_env: ResolvedEnv) -> dict[str, str]:
+        return {}
+
+    def _preflight(self) -> None:
+        """
+        tasks to do before resolving a plan
+        """
+        pass
+
+    def _validate(self, spec: BottleSpec) -> Manifest:
+        """Cross-backend pre-launch checks. Parses the selected agent and
+        its bottle (raising ManifestError on invalid content), confirms
+        skills are present on the host, and every git IdentityFile resolves.
+
+        Returns the loaded Manifest for the selected agent. Subclasses with
+        additional preconditions should override and call
+        `super()._validate(spec)` first."""
+        manifest = spec.manifest.load_for_agent(spec.agent_name, spec.bottle_names)
+        self._validate_skills(manifest.agent.skills)
+        self._validate_agent_provider_dockerfile(spec, manifest)
+        return manifest
 
     def _validate_skills(self, skills: Sequence[str]) -> None:
         """Each named skill must be a directory under the host's
@@ -297,18 +398,8 @@ class BottleBackend(ABC, Generic[PlanT, CleanupT]):
                     f"Create it under ~/.claude/skills/, then re-run."
                 )
 
-    def _validate_git_entries(self, entries: Sequence[GitEntry]) -> None:
-        """Each entry's IdentityFile must exist on the host (after
-        expanding leading ~) — the git-gate copies it in at start time
-        to authenticate the upstream push (PRD 0008). Shape is already
-        enforced by Manifest validation; this only checks presence."""
-        for entry in entries:
-            key = expand_tilde(entry.IdentityFile)
-            if not os.path.isfile(key):
-                die(f"git upstream key file not found for '{entry.Name}': {key}")
-
-    def _validate_agent_provider_dockerfile(self, spec: BottleSpec) -> None:
-        bottle = spec.manifest.bottle_for(spec.agent_name)
+    def _validate_agent_provider_dockerfile(self, spec: BottleSpec, manifest: Manifest) -> None:
+        bottle = manifest.bottle
         dockerfile = bottle.agent_provider.dockerfile
         if not dockerfile:
             return
@@ -316,16 +407,31 @@ class BottleBackend(ABC, Generic[PlanT, CleanupT]):
         if not path.is_absolute():
             path = Path(spec.user_cwd) / path
         if not path.is_file():
+            effective = (
+                ", ".join(spec.bottle_names) if spec.bottle_names else manifest.agent.bottle
+            )
             die(
                 f"agent_provider.dockerfile for bottle "
-                f"'{spec.manifest.agents[spec.agent_name].bottle}' not found: {path}"
+                f"'{effective}' not found: {path}"
             )
 
     @abstractmethod
-    def _resolve_plan(self, spec: BottleSpec, *, stage_dir: Path) -> PlanT:
+    def _resolve_plan(self,
+                      spec: BottleSpec,
+                      *,
+                      manifest: Manifest,
+                      slug: str,
+                      resolved_env: ResolvedEnv,
+                      agent_provision_plan: AgentProvisionPlan,
+                      egress_plan: EgressPlan,
+                      git_gate_plan: GitGatePlan,
+                      supervise_plan: SupervisePlan | None,
+                      stage_dir: Path) -> PlanT:
         """Backend-specific plan resolution: image/container names,
         env-file, prompt-file, proxy plan, runtime detection. Called by
-        `prepare` after `_validate` succeeds."""
+        `prepare` after `_validate` succeeds. Instance name, image,
+        prompt file, Dockerfile path, and guest home all live on
+        `agent_provision_plan` — the source of truth."""
 
     @abstractmethod
     def launch(self, plan: PlanT) -> AbstractContextManager[Bottle]:
@@ -369,9 +475,30 @@ class BottleBackend(ABC, Generic[PlanT, CleanupT]):
         return prompt_path
 
     def provision_workspace(self, plan: PlanT, bottle: "Bottle") -> None:
-        """Copy the operator workspace into the running bottle when
-        the backend cannot bake it into the agent image. Default is
-        no-op for backends like Docker that handle this before launch."""
+        """Copy the operator workspace into the running bottle.
+
+        This is the only supported workspace-provisioning path: Docker
+        does not build a derived image containing the current
+        workspace."""
+        workspace = plan.workspace_plan
+        if not (workspace.enabled and workspace.copy_contents):
+            return
+
+        guest_parent = workspace.guest_path.rsplit("/", 1)[0] or "/"
+        guest_path = shlex.quote(workspace.guest_path)
+        guest_parent = shlex.quote(guest_parent)
+        owner = shlex.quote(workspace.owner)
+        mode = shlex.quote(workspace.mode)
+        info(f"copying {workspace.host_path} -> {bottle.name}:{workspace.guest_path}")
+        bottle.exec(
+            f"rm -rf {guest_path} && mkdir -p {guest_parent}",
+            user="root",
+        )
+        bottle.cp_in(str(workspace.host_path), workspace.guest_path)
+        bottle.exec(
+            f"chown -R {owner} {guest_path} && chmod {mode} {guest_path}",
+            user="root",
+        )
 
     def supervise_mcp_url(self, plan: PlanT) -> str:
         """Return the agent-side URL of the per-bottle supervise
@@ -380,7 +507,7 @@ class BottleBackend(ABC, Generic[PlanT, CleanupT]):
         MCP entry inside the guest.
 
         Default returns "" so backends without supervise support
-        don't have to implement it. Docker and smolmachines override."""
+        don't have to implement it. Docker and firecracker override."""
         del plan
         return ""
 
@@ -397,26 +524,65 @@ class BottleBackend(ABC, Generic[PlanT, CleanupT]):
     def enumerate_active(self) -> Sequence[ActiveAgent]:
         """Return every currently-running agent on this backend.
         Empty when none. Backend-specific: docker queries `docker
-        compose ls`; smolmachines queries `smolvm machine ls --json`
-        + cross-references its bundle container."""
+        compose ls`; firecracker cross-references its running sidecar
+        containers against per-bottle metadata."""
 
     @classmethod
     @abstractmethod
     def is_available(cls) -> bool:
         """Whether this backend's runtime prerequisites are satisfied
-        on the current host. Docker → `docker` on PATH; smolmachines
-        → `smolvm` on PATH. Used by the cross-backend
+        on the current host. Docker → `docker` on PATH; firecracker →
+        Linux + KVM. Used by the cross-backend
         `enumerate_active_agents` / `cmd_cleanup` to skip backends
         the operator hasn't installed, so a docker-only host
         doesn't fail when `cli.py list active` walks past
-        smolmachines."""
+        firecracker."""
+
+    @classmethod
+    @abstractmethod
+    def setup(cls) -> int:
+        """Emit this backend's one-time host setup — privileged network
+        pool, daemon bring-up, install pointers, etc. — as
+        host-appropriate config or commands. Prints to stdout/stderr and
+        returns a shell exit code (0 = nothing to report / success). A
+        backend that needs no host setup prints a short note and returns
+        0. Invoked generically by `./cli.py backend setup [--backend=…]`
+        so operators can provision any backend without a
+        backend-specific command. Classmethod (like `is_available`) —
+        it's a host query, not per-bottle state."""
+
+    @classmethod
+    @abstractmethod
+    def status(cls) -> int:
+        """Report whether this backend's prerequisites are satisfied on
+        the host — binaries, daemon reachability, network pool, range
+        conflicts, etc. Prints a human-readable summary; returns 0 when
+        the backend is ready to launch and non-zero when something is
+        missing. Invoked by `./cli.py backend status [--backend=…]`."""
+
+    @classmethod
+    @abstractmethod
+    def teardown(cls) -> int:
+        """Undo `setup()` — the inverse operation, surfaced as
+        `./cli.py backend teardown [--backend=…]` (uninstall). Symmetric
+        with setup: where setup is advisory (prints the privileged
+        commands / declarative config to apply), teardown prints the
+        commands / config change to remove the host prerequisites. A
+        backend with no host setup prints a short note and returns 0.
+        Not called by the launch path or the test suite."""
 
 
 # Import concrete backend classes AFTER the base types are defined, so
 # each backend module can pull BottleSpec / BottlePlan / BottleBackend
 # via `from . import ...` without hitting a partially-initialized module.
 from .docker import DockerBottleBackend  # noqa: E402  # pylint: disable=wrong-import-position
-from .smolmachines import SmolmachinesBottleBackend  # noqa: E402  # pylint: disable=wrong-import-position
+from .firecracker import FirecrackerBottleBackend  # noqa: E402  # pylint: disable=wrong-import-position
+from .macos_container import MacosContainerBottleBackend  # noqa: E402  # pylint: disable=wrong-import-position
+
+# Freezer is imported after the backend classes for the same reason:
+# Freezer.commit_slug constructs ActiveAgent, which must be fully
+# defined first.
+from .freeze import CommitCancelled, Freezer, get_freezer  # noqa: E402  # pylint: disable=wrong-import-position
 
 
 # The dict is heterogeneous: each value is a BottleBackend specialized
@@ -425,7 +591,8 @@ from .smolmachines import SmolmachinesBottleBackend  # noqa: E402  # pylint: dis
 # unparameterized methods (prepare → plan → launch(plan), cleanup, etc.).
 _BACKENDS: dict[str, BottleBackend[Any, Any]] = {
     "docker": DockerBottleBackend(),
-    "smolmachines": SmolmachinesBottleBackend(),
+    "firecracker": FirecrackerBottleBackend(),
+    "macos-container": MacosContainerBottleBackend(),
 }
 
 
@@ -437,17 +604,31 @@ def get_bottle_backend(
     `name` precedence:
       1. explicit arg (CLI `--backend=<name>` passes through here)
       2. BOT_BOTTLE_BACKEND env var
-      3. default `docker`
+      3. `macos-container` on compatible macOS hosts
+      4. `firecracker` on KVM-capable Linux hosts
+      5. default `docker`
 
     Dies with a pointer at the known backends if the chosen name
     isn't implemented."""
-    resolved = name or os.environ.get("BOT_BOTTLE_BACKEND") or "docker"
+    resolved = name or os.environ.get("BOT_BOTTLE_BACKEND") or _default_backend_name()
     if resolved not in _BACKENDS:
         known = ", ".join(sorted(_BACKENDS))
         die(f"unknown backend {resolved!r}; known backends: {known}")
     return _BACKENDS[resolved]
 
 
+def _default_backend_name() -> str:
+    if has_backend("macos-container"):
+        return "macos-container"
+    # A KVM-capable Linux host defaults to firecracker even when the
+    # `firecracker` binary isn't installed yet: selecting it here routes
+    # start through firecracker's preflight, which prints an install
+    # pointer, instead of silently falling back to docker.
+    if FirecrackerBottleBackend.is_host_capable():
+        return "firecracker"
+    return "docker"
+
+
 def known_backend_names() -> tuple[str, ...]:
     """Sorted tuple of all backend keys in `_BACKENDS`. Used by
     argparse (`--backend` choices) and the dashboard's backend
@@ -459,7 +640,7 @@ def has_backend(name: str) -> bool:
     """Whether the named backend's runtime prerequisites are
     available on the current host. Cross-backend callers (list,
     cleanup) skip unavailable backends so a docker-only host
-    doesn't fail when the smolmachines backend isn't installed,
+    doesn't fail when the firecracker backend isn't usable,
     and vice versa.
 
     Returns False for unknown names so callers can pass
@@ -497,9 +678,12 @@ __all__ = [
     "BottleCleanupPlan",
     "BottlePlan",
     "BottleSpec",
+    "CommitCancelled",
     "ExecResult",
+    "Freezer",
     "enumerate_active_agents",
     "get_bottle_backend",
+    "get_freezer",
     "has_backend",
     "known_backend_names",
 ]

bot_bottle/backend/docker/backend.py

@@ -2,10 +2,10 @@
 
 This module is a thin façade. The real work lives in four siblings:
 
-  - prepare.py    — host-side resolution into a DockerBottlePlan
-  - launch.py     — bring-up + teardown context manager
-  - cleanup.py    — orphan enumeration + removal
-  - enumerate.py  — active-agent listing
+  - resolve_plan.py — Docker-specific resolution into a DockerBottlePlan
+  - launch.py       — bring-up + teardown context manager
+  - cleanup.py      — orphan enumeration + removal
+  - enumerate.py    — active-agent listing
 
 The base class's `prepare` template runs cross-backend host-side
 validation before calling `_resolve_plan` here.
@@ -25,17 +25,23 @@ from pathlib import Path
 from typing import Generator, Sequence
 
 from ...supervise import SUPERVISE_HOSTNAME, SUPERVISE_PORT
+from ...agent_provider import AgentProvisionPlan
+from ...egress import EgressPlan
+from ...env import ResolvedEnv
+from ...git_gate import GitGatePlan
+from ...supervise import SupervisePlan
+from ...manifest import Manifest
 from .. import ActiveAgent, BottleBackend, BottleSpec
 from . import cleanup as _cleanup
 from . import enumerate as _enumerate
 from . import launch as _launch
-from . import prepare as _prepare
+from . import resolve_plan as _resolve_plan
 from .bottle import DockerBottle
 from .bottle_cleanup_plan import DockerBottleCleanupPlan
 from .bottle_plan import DockerBottlePlan
 class DockerBottleBackend(BottleBackend["DockerBottlePlan", "DockerBottleCleanupPlan"]):
     """Docker backend implementation. Selected by BOT_BOTTLE_BACKEND
-    (default)."""
+    when set to `docker`; retained as a legacy/example backend."""
 
     name = "docker"
 
@@ -48,8 +54,51 @@ class DockerBottleBackend(BottleBackend["DockerBottlePlan", "DockerBottleCleanup
         launch."""
         return shutil.which("docker") is not None
 
-    def _resolve_plan(self, spec: BottleSpec, *, stage_dir: Path) -> DockerBottlePlan:
-        return _prepare.resolve_plan(spec, stage_dir=stage_dir)
+    @classmethod
+    def setup(cls) -> int:
+        from . import setup as _setup
+        return _setup.setup()
+
+    @classmethod
+    def status(cls) -> int:
+        from . import setup as _setup
+        return _setup.status()
+
+    @classmethod
+    def teardown(cls) -> int:
+        from . import setup as _setup
+        return _setup.teardown()
+
+    def _preflight(self) -> None:
+        _resolve_plan.preflight()
+
+    def _build_guest_env(self, resolved_env: ResolvedEnv) -> dict[str, str]:
+        return _resolve_plan.build_guest_env(resolved_env)
+
+    def _resolve_plan(
+        self,
+        spec: BottleSpec,
+        *,
+        manifest: Manifest,
+        slug: str,
+        resolved_env: ResolvedEnv,
+        agent_provision_plan: AgentProvisionPlan,
+        egress_plan: EgressPlan,
+        git_gate_plan: GitGatePlan,
+        supervise_plan: SupervisePlan | None,
+        stage_dir: Path,
+    ) -> DockerBottlePlan:
+        return _resolve_plan.resolve_plan(
+            spec,
+            manifest=manifest,
+            slug=slug,
+            resolved_env=resolved_env,
+            agent_provision_plan=agent_provision_plan,
+            egress_plan=egress_plan,
+            supervise_plan=supervise_plan,
+            git_gate_plan=git_gate_plan,
+            stage_dir=stage_dir,
+        )
 
     @contextmanager
     def launch(self, plan: DockerBottlePlan) -> Generator[DockerBottle, None, None]:

bot_bottle/backend/docker/bottle.py

@@ -9,6 +9,7 @@ from typing import cast
 
 from ...agent_provider import PromptMode, prompt_args
 from .. import Bottle, ExecResult
+from ..terminal import exec_shell_script
 
 
 class DockerBottle(Bottle):
@@ -22,15 +23,20 @@ class DockerBottle(Bottle):
         *,
         agent_command: str = "claude",
         agent_prompt_mode: PromptMode = "append_file",
+        agent_provider_template: str = "claude",
+        terminal_title: str = "",
+        terminal_color: str = "",
+        agent_workdir: str = "/home/node",
     ):
         self.name = container
         self._teardown = teardown
         self.prompt_path = prompt_path_in_container
         self._agent_prompt_mode = agent_prompt_mode
         self.agent_command = agent_command
-        self.agent_provider_template = (
-            "codex" if agent_command == "codex" else "claude"
-        )
+        self.terminal_title = terminal_title
+        self.terminal_color = terminal_color
+        self.agent_provider_template = agent_provider_template
+        self.agent_workdir = agent_workdir
         self._closed = False
 
     def agent_argv(
@@ -43,13 +49,17 @@ class DockerBottle(Bottle):
         cmd = ["docker", "exec"]
         if tty:
             cmd.append("-it")
+        if self.agent_workdir and self.agent_workdir != "/home/node":
+            cmd.extend(["-w", self.agent_workdir])
         cmd.extend([self.name, self.agent_command, *full_argv])
         return cmd
 
     def exec_agent(self, argv: list[str], *, tty: bool = True) -> int:
-        return subprocess.run(
-            self.agent_argv(argv, tty=tty), check=False,
-        ).returncode
+        agent_argv = self.agent_argv(argv, tty=tty)
+        script = exec_shell_script(agent_argv, self.terminal_title, self.terminal_color) if tty else None
+        if script is None:
+            return subprocess.run(agent_argv, check=False).returncode
+        return subprocess.run(["sh", "-lc", script], check=False).returncode
 
     def exec(self, script: str, *, user: str = "node") -> ExecResult:
         # Pipe via stdin to `sh -s` so the caller never has to worry

bot_bottle/backend/docker/bottle_plan.py

@@ -22,25 +22,32 @@ class DockerBottlePlan(BottlePlan):
     `agent_provision` from BottlePlan."""
 
     slug: str
-    container_name: str
-    container_name_pinned: bool
-    image: str
-    derived_image: str           # "" -> no derived image
-    runtime_image: str           # image actually launched (derived or base)
-    # Absolute path to the Dockerfile that builds `image`. Empty means
-    # use the repo's default Dockerfile. Populated to a per-bottle
-    # state file (~/.bot-bottle/state/<slug>/Dockerfile) after a
-    # capability-block remediation (PRD 0016).
-    dockerfile_path: str
-    env_file: Path               # docker --env-file: NAME=VALUE literals
     # name -> value for vars forwarded into the docker-run child process
     # via subprocess env (so values never land on argv or in a file).
     # repr=False keeps secret/interpolated/OAuth values out of any
     # accidental log of the plan dataclass.
     forwarded_env: dict[str, str] = field(repr=False)
-    prompt_file: Path
     use_runsc: bool
 
+    @property
+    def container_name(self) -> str:
+        return self.agent_provision.instance_name
+
+    @property
+    def image(self) -> str:
+        return self.agent_provision.image
+
+    @property
+    def dockerfile_path(self) -> str:
+        """Absolute path to the Dockerfile that builds `image`. Sourced
+        from the agent provision plan — the manifest may override per
+        bottle; otherwise the provider plugin's bundled Dockerfile."""
+        return self.agent_provision.dockerfile
+
+    @property
+    def prompt_file(self) -> Path:
+        return self.agent_provision.prompt_file
+
     @property
     def agent_command(self) -> str:
         return self.agent_provision.command

bot_bottle/backend/docker/capability_apply.py

@@ -1,218 +0,0 @@
-"""capability_apply — host-side orchestrator for capability-block
-remediation (PRD 0016).
-
-On approval of a capability-block proposal, the dashboard calls
-apply_capability_change(slug, new_dockerfile) which:
-
-  1. Snapshots the agent's transcript dir to
-     ~/.bot-bottle/state/<slug>/transcript/ (best-effort).
-  2. Pushes the agent's working tree via `git push` (best-effort —
-     no upstream / no commits / no git repo all skip with a log).
-  3. Writes the new Dockerfile to
-     ~/.bot-bottle/state/<slug>/Dockerfile (PRD 0016 Phase 1
-     state). The next `cli.py start <agent>` picks it up.
-  4. Force-removes the agent container + all sidecars + the
-     per-bottle networks. Idempotent — missing resources are not
-     errors.
-
-Returns (before, after) Dockerfile contents so the dashboard can
-record / render the diff. (capability-block has no audit log per
-PRD 0013 — the per-bottle Dockerfile state is its own record.)
-
-This is "fire-and-forget" from the agent's perspective: by the time
-the dashboard writes the response file the supervise sidecar is
-gone, so the agent's tool call connection drops without ever
-receiving the response. The replacement agent (next manual
-`cli.py start`) sees the new Dockerfile and starts from there.
-v1 does not auto-relaunch — see PRD 0016's capability-block return
-semantics open question.
-"""
-
-from __future__ import annotations
-
-import shutil
-import subprocess
-from pathlib import Path
-
-from ...log import info, warn
-from .bottle_state import (
-    mark_preserved,
-    per_bottle_dockerfile,
-    transcript_snapshot_dir,
-    write_per_bottle_dockerfile,
-)
-from .sidecar_bundle import sidecar_bundle_container_name
-
-
-# Agent home inside the container (per the repo Dockerfile's
-# `USER node` + `WORKDIR /home/node`). Used to locate the transcript
-# dir + the workspace dir for git push.
-_AGENT_HOME_IN_CONTAINER = "/home/node"
-_AGENT_TRANSCRIPT_IN_CONTAINER = f"{_AGENT_HOME_IN_CONTAINER}/.claude"
-_AGENT_WORKSPACE_IN_CONTAINER = f"{_AGENT_HOME_IN_CONTAINER}/workspace"
-
-# Per-bottle resource name patterns (mirroring prepare.py).
-def _agent_container_name(slug: str) -> str:
-    return f"bot-bottle-{slug}"
-
-
-def _per_bottle_container_names(slug: str) -> list[str]:
-    """All container names that belong to this bottle. Missing
-    containers are silently skipped by the teardown helper, so it's
-    fine to include names that don't exist for a given bottle."""
-    return [
-        _agent_container_name(slug),
-        sidecar_bundle_container_name(slug),
-    ]
-
-
-def _per_bottle_network_names(slug: str) -> list[str]:
-    return [
-        f"bot-bottle-net-{slug}",
-        f"bot-bottle-egress-{slug}",
-    ]
-
-
-class CapabilityApplyError(RuntimeError):
-    """Raised when the apply fails in a way that should keep the
-    proposal pending (so the operator can retry). Best-effort
-    failures (transcript snapshot, git push) do not raise — they
-    just log and proceed."""
-
-
-# --- Public helpers --------------------------------------------------------
-
-
-def fetch_current_dockerfile(slug: str) -> str:
-    """Return the Dockerfile content the next `cli.py start <agent>`
-    would use for this bottle. If a per-bottle override exists, that
-    one; otherwise the repo's Dockerfile.
-
-    Used by the operator-edit verb to show the current source of
-    truth, and by apply_capability_change for the before-diff."""
-    override = per_bottle_dockerfile(slug)
-    if override is not None:
-        return override
-    repo_dockerfile = _repo_dockerfile_path()
-    if repo_dockerfile.is_file():
-        return repo_dockerfile.read_text()
-    raise CapabilityApplyError(
-        f"no per-bottle Dockerfile for {slug} and no repo Dockerfile at "
-        f"{repo_dockerfile}"
-    )
-
-
-def apply_capability_change(slug: str, new_dockerfile: str) -> tuple[str, str]:
-    """End-to-end capability-block remediation. See module docstring
-    for the sequence. Returns (before, after) Dockerfile content."""
-    if not new_dockerfile.strip():
-        raise CapabilityApplyError("proposed Dockerfile is empty")
-    before = fetch_current_dockerfile(slug)
-
-    snapshot_transcript(slug)
-    _push_working_tree(slug)
-    write_per_bottle_dockerfile(slug, new_dockerfile)
-    # Set the preserve marker BEFORE teardown so cli.py's session-end
-    # cleanup sees it and keeps the state dir intact for the
-    # operator's `cli.py resume <identity>`. Without the marker the
-    # state dir would be deleted as part of normal session end.
-    mark_preserved(slug)
-    _teardown_bottle(slug)
-
-    return before, new_dockerfile
-
-
-# --- Internals -------------------------------------------------------------
-
-
-def _repo_dockerfile_path() -> Path:
-    """Path to the repo's Claude Dockerfile (one dir above this module's
-    package root). Resolved at call time so the path is correct
-    regardless of where this module is imported from."""
-    # bot_bottle/backend/docker/capability_apply.py -> repo root
-    return Path(__file__).resolve().parent.parent.parent.parent / "Dockerfile.claude"
-
-
-def snapshot_transcript(slug: str) -> None:
-    """`docker cp` /home/node/.claude out of the agent container into
-    ~/.bot-bottle/state/<slug>/transcript/. Best-effort: missing
-    container, missing dir, or cp error all log a warning and return.
-    The transcript is what `claude --resume` reads to pick up where
-    the agent left off.
-
-    Called from two places:
-      - capability-apply, before tearing the bottle down.
-      - cli.py's session-end path, before the launch context closes,
-        so a crash or normal exit also leaves a transcript on disk
-        (deleted along with the state dir on clean exit, kept on
-        crash or capability-block per the preserve marker)."""
-    container = _agent_container_name(slug)
-    dest = transcript_snapshot_dir(slug)
-    if dest.exists():
-        # Remove any prior snapshot so the new one is a clean copy.
-        shutil.rmtree(dest, ignore_errors=True)
-    dest.parent.mkdir(parents=True, exist_ok=True)
-    r = subprocess.run(
-        ["docker", "cp", f"{container}:{_AGENT_TRANSCRIPT_IN_CONTAINER}", str(dest)],
-        capture_output=True, text=True, check=False,
-    )
-    if r.returncode != 0:
-        warn(
-            f"transcript snapshot skipped "
-            f"({(r.stderr or '').strip() or 'no transcript dir in container?'})"
-        )
-        return
-    info(f"transcript snapshotted to {dest}")
-
-
-def _push_working_tree(slug: str) -> None:
-    """`docker exec <agent> git push` from /home/node/workspace.
-    Best-effort: not-a-git-repo, no upstream, nothing-to-push, no
-    network all log a warning and return. The replacement bottle
-    will pick up whatever's actually upstream."""
-    container = _agent_container_name(slug)
-    r = subprocess.run(
-        [
-            "docker", "exec", container, "sh", "-c",
-            f"cd {_AGENT_WORKSPACE_IN_CONTAINER} && "
-            f"git rev-parse --is-inside-work-tree >/dev/null 2>&1 && "
-            f"git push origin HEAD 2>&1 || true",
-        ],
-        capture_output=True, text=True, check=False,
-    )
-    if r.returncode != 0:
-        warn(
-            f"capability-apply: git push skipped "
-            f"({(r.stderr or '').strip() or 'docker exec failed'})"
-        )
-        return
-    output = (r.stdout or "").strip()
-    if output:
-        info(f"capability-apply: git push: {output}")
-    else:
-        info("capability-apply: git push ran (no output — likely not a git workspace)")
-
-
-def _teardown_bottle(slug: str) -> None:
-    """Force-remove all per-bottle docker resources. Idempotent —
-    `docker rm -f` / `docker network rm` silently ignore missing
-    names, so this can be called even mid-rebuild."""
-    info(f"capability-apply: tearing down bottle {slug}")
-    for name in _per_bottle_container_names(slug):
-        subprocess.run(
-            ["docker", "rm", "-f", name],
-            stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL, check=False,
-        )
-    for net in _per_bottle_network_names(slug):
-        subprocess.run(
-            ["docker", "network", "rm", net],
-            stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL, check=False,
-        )
-
-
-__all__ = [
-    "CapabilityApplyError",
-    "apply_capability_change",
-    "fetch_current_dockerfile",
-    "snapshot_transcript",
-]

bot_bottle/backend/docker/cleanup.py

@@ -18,8 +18,7 @@ scan, just as a fallback bucket alongside the project list.
 
 `cleanup` removes everything in the plan.
 
-Active-agent enumeration lives in `backend/docker/enumerate.py`
-(mirror of `backend/smolmachines/enumerate.py`).
+Active-agent enumeration lives in `backend/docker/enumerate.py`.
 """
 
 from __future__ import annotations
@@ -31,7 +30,7 @@ from ... import supervise as _supervise
 from ...log import info, warn
 from . import util as docker_mod
 from .bottle_cleanup_plan import DockerBottleCleanupPlan
-from .bottle_state import bottle_state_dir, is_preserved
+from ...bottle_state import bottle_state_dir, is_preserved
 from .compose import COMPOSE_PROJECT_PREFIX, list_compose_projects
 
 
@@ -93,8 +92,8 @@ def _list_orphan_state_dirs(
 
     `protected_identities` is the set of slugs that are live in
     ANY backend — used so this docker-side check doesn't reap a
-    running smolmachines bottle's state dir (the layout is shared
-    across both backends)."""
+    running non-docker bottle's state dir (the layout is shared
+    across backends)."""
     state_root = _supervise.bot_bottle_root() / "state"
     if not state_root.is_dir():
         return []
@@ -119,7 +118,7 @@ def prepare_cleanup() -> DockerBottleCleanupPlan:
 
     Pulls the union of live identities across backends via
     `enumerate_active_agents()` so the orphan-state-dir bucket
-    doesn't include slugs whose smolmachines VM is still up."""
+    doesn't include slugs whose non-docker bottle is still up."""
     docker_mod.require_docker()
     projects = list_compose_projects()
     project_set = set(projects)

bot_bottle/backend/docker/compose.py

@@ -28,12 +28,13 @@ from typing import Any
 from ...egress import (
     EGRESS_HOSTNAME,
     EGRESS_ROUTES_IN_CONTAINER,
+    egress_agent_env_entries,
+    egress_sidecar_env_entries,
 )
 from ...git_gate import GIT_GATE_HOSTNAME
 from ...log import die, warn
 from ...supervise import (
-    CURRENT_CONFIG_DIR_IN_AGENT,
-    QUEUE_DIR_IN_CONTAINER,
+    DB_PATH_IN_CONTAINER,
     SUPERVISE_HOSTNAME,
     SUPERVISE_PORT,
 )
@@ -134,9 +135,8 @@ def _sidecar_bundle_service(plan: DockerBottlePlan) -> dict[str, Any]:
     ep = plan.egress_plan
     volumes.append(_bind(ep.mitmproxy_ca_host_path, EGRESS_CA_IN_CONTAINER))
     if ep.routes:
-        volumes.append(_bind(ep.routes_path, EGRESS_ROUTES_IN_CONTAINER))
-        for token_env in sorted(ep.token_env_map.keys()):
-            env.append(token_env)
+        volumes.append(_bind(ep.routes_path.parent, str(Path(EGRESS_ROUTES_IN_CONTAINER).parent)))
+    env.extend(egress_sidecar_env_entries(ep))
 
     # --- git-gate -----------------------------------------------------
     gp = plan.git_gate_plan
@@ -163,16 +163,15 @@ def _sidecar_bundle_service(plan: DockerBottlePlan) -> dict[str, Any]:
     if sp is not None:
         env += [
             f"SUPERVISE_BOTTLE_SLUG={plan.slug}",
-            f"SUPERVISE_QUEUE_DIR={QUEUE_DIR_IN_CONTAINER}",
+            f"SUPERVISE_DB_PATH={DB_PATH_IN_CONTAINER}",
             f"SUPERVISE_PORT={SUPERVISE_PORT}",
         ]
         volumes.append({
             "type": "bind",
-            "source": str(sp.queue_dir),
-            "target": QUEUE_DIR_IN_CONTAINER,
+            "source": str(sp.db_path),
+            "target": DB_PATH_IN_CONTAINER,
             "read_only": False,
         })
-
     internal_aliases = [EGRESS_HOSTNAME]
     if gp.upstreams:
         internal_aliases.append(GIT_GATE_HOSTNAME)
@@ -220,9 +219,10 @@ def _agent_service(plan: DockerBottlePlan) -> dict[str, Any]:
     # never lands on argv or in the compose file.
     for name in sorted(plan.forwarded_env.keys()):
         env.append(name)
+    env.extend(egress_agent_env_entries(plan.egress_plan))
 
     service: dict[str, Any] = {
-        "image": plan.runtime_image,
+        "image": plan.image,
         "container_name": plan.container_name,
         "command": ["sleep", "infinity"],
         "networks": {"internal": None},
@@ -230,17 +230,6 @@ def _agent_service(plan: DockerBottlePlan) -> dict[str, Any]:
     }
     if plan.use_runsc:
         service["runtime"] = "runsc"
-    if plan.env_file and plan.env_file.exists() and plan.env_file.stat().st_size > 0:
-        service["env_file"] = [str(plan.env_file)]
-
-    volumes: list[dict[str, Any]] = []
-    if plan.supervise_plan is not None:
-        volumes.append(_bind(
-            plan.supervise_plan.current_config_dir,
-            CURRENT_CONFIG_DIR_IN_AGENT,
-        ))
-    if volumes:
-        service["volumes"] = volumes
 
     # The init supervisor inside the bundle owns intra-bundle
     # daemon ordering, so the agent only waits for the bundle

bot_bottle/backend/docker/egress_apply.py

@@ -1,24 +1,21 @@
-"""Host-side helper for egress sidecar inspection (issue #198).
+"""Host-side helper for egress sidecar inspection and live updates.
 
-`_merge_single_route`, `add_route`, and `apply_routes_change` were
-removed when the egress-block MCP tool was dropped. The remaining
-helpers support runtime inspection and validation of the routes file
-without modifying it at runtime.
+The approve path uses this module to validate a proposed routes file,
+write it to the bottle's live egress state dir, and signal the sidecar
+bundle so the mitmproxy addon reloads it.
 """
 
 from __future__ import annotations
 
+import os
 import subprocess
 
 from ...egress import EGRESS_ROUTES_IN_CONTAINER
-from ...egress_addon_core import load_routes
+from ...log import warn
+from ..egress_apply import EgressApplicator, EgressApplyError
 from .sidecar_bundle import sidecar_bundle_container_name
 
 
-class EgressApplyError(RuntimeError):
-    pass
-
-
 def fetch_current_routes(slug: str) -> str:
     container = sidecar_bundle_container_name(slug)
     r = subprocess.run(
@@ -33,17 +30,31 @@ def fetch_current_routes(slug: str) -> str:
     return r.stdout
 
 
-def validate_routes_content(content: str) -> None:
-    try:
-        load_routes(content)
-    except ValueError as e:
-        raise EgressApplyError(
-            f"proposed routes.yaml is not valid: {e}"
-        ) from e
+class DockerEgressApplicator(EgressApplicator):
+    def _signal_bundle_reload(self, slug: str) -> None:
+        container = sidecar_bundle_container_name(slug)
+        result = subprocess.run(
+            ["docker", "kill", "--signal", "HUP", container],
+            capture_output=True, text=True, check=False, env=os.environ,
+        )
+        if result.returncode != 0:
+            last_error = (result.stderr or "").strip() or (result.stdout or "").strip()
+            warn(
+                f"egress: routes updated on disk for {slug}, but bundle reload failed: "
+                f"{last_error or 'docker kill failed'}"
+            )
+            raise EgressApplyError(
+                f"could not reload egress bundle {container}: "
+                f"{last_error or 'docker kill failed'}"
+            )
+
+
+applicator = DockerEgressApplicator()
 
 
 __all__ = [
+    "DockerEgressApplicator",
     "EgressApplyError",
+    "applicator",
     "fetch_current_routes",
-    "validate_routes_content",
 ]

bot_bottle/backend/docker/enumerate.py

@@ -1,7 +1,6 @@
 """Active-agent enumeration for the docker backend.
 
-Mirrors `backend/smolmachines/enumerate.py`: returns
-`ActiveAgent` records the CLI `list active` command and the
+Returns `ActiveAgent` records the CLI `list active` command and the
 dashboard agents pane consume. Empty when docker isn't reachable
 — gated by `has_backend('docker')` at the cross-backend caller
 so this module trusts that docker is available when called.
@@ -15,7 +14,7 @@ from __future__ import annotations
 import subprocess
 
 from .. import ActiveAgent
-from .bottle_state import read_metadata
+from ...bottle_state import read_metadata
 from .compose import compose_project_name, list_active_slugs
 
 

bot_bottle/backend/docker/freezer.py

@@ -0,0 +1,23 @@
+"""DockerFreezer — snapshot a Docker bottle via `docker commit`."""
+
+from __future__ import annotations
+
+from .. import ActiveAgent
+from ..freeze import Freezer
+from .util import commit_container
+from ...log import info
+
+
+class DockerFreezer(Freezer):
+    """Freezes a Docker bottle by running `docker commit`."""
+
+    backend_name = "docker"
+
+    def _freeze(self, agent: ActiveAgent) -> str:
+        container = f"bot-bottle-{agent.slug}"
+        image_tag = f"bot-bottle-committed-{agent.slug}:latest"
+        commit_container(container, image_tag)
+        return image_tag
+
+    def _export_hint(self, slug: str, image_ref: str) -> None:
+        info(f"to export for migration:      docker save {image_ref} -o {slug}.tar")

bot_bottle/backend/docker/launch.py

@@ -4,8 +4,8 @@ PRD 0018 chunk 3: each instance is one `docker compose` project.
 
 The flow is:
 
-  1. Build the agent's base + derived image (compose builds the
-     sidecar images via the `build:` directive on first up).
+  1. Build the agent image from the provider Dockerfile (compose
+     builds the sidecar images via the `build:` directive on first up).
   2. Mint the per-bottle egress CA (chunk 2 writes it under
      state/<slug>/egress/).
   3. Populate the inner plans with launch-time fields so the
@@ -15,8 +15,8 @@ The flow is:
   7. `docker compose up -d` (token + OAuth values flow into the
      compose subprocess env so `environment: [NAME]` bare-name
      entries inherit without rendering values into the file).
-  8. Provision (CA install, prompt copy, skills, git, supervise
-     config) — unchanged, uses `docker exec`.
+  8. Provision (CA install, prompt copy, skills, workspace, git,
+     supervise config) — unchanged, uses `docker exec` / `docker cp`.
   9. Yield a DockerBottle handle. `exec_agent` runs claude via
      `docker exec -it` exactly like the pre-compose world.
 
@@ -37,16 +37,20 @@ from pathlib import Path
 from typing import Callable, Generator
 
 from ...egress import egress_resolve_token_values
-from ...git_gate import revoke_git_gate_provisioned_keys
+from ...git_gate import (
+    provision_git_gate_dynamic_keys,
+    revoke_git_gate_provisioned_keys,
+)
 from ...log import info, warn
 from . import network as network_mod
 from . import util as docker_mod
 from .bottle import DockerBottle
 from .bottle_plan import DockerBottlePlan
-from .bottle_state import (
+from ...bottle_state import (
     bottle_state_dir,
     egress_state_dir,
     git_gate_state_dir,
+    read_committed_image,
 )
 from .compose import (
     bottle_plan_to_compose,
@@ -75,7 +79,7 @@ def launch(
     Teardown on exit."""
     stack = ExitStack()
 
-    _bottle_for_revoke = plan.spec.manifest.bottle_for(plan.spec.agent_name)
+    _bottle_for_revoke = plan.manifest.bottle
     _git_gate_dir_for_revoke = git_gate_state_dir(plan.slug)
 
     def teardown() -> None:
@@ -91,15 +95,21 @@ def launch(
         )
 
     try:
-        # Step 1: agent image build. Sidecar images get built lazily by
-        # `docker compose up` via the renderer's `build:` directives.
-        docker_mod.build_image(
-            plan.image, _REPO_DIR,
-            dockerfile=plan.dockerfile_path,
-        )
-        if plan.derived_image:
-            docker_mod.build_image_with_cwd(
-                plan.derived_image, plan.image, plan.workspace_plan
+        # Step 1: agent image. Use a committed snapshot when one exists
+        # and is present in the local daemon; otherwise build from the
+        # Dockerfile. Sidecar images get built lazily by `docker compose
+        # up` via the renderer's `build:` directives.
+        committed = read_committed_image(plan.slug)
+        if committed and docker_mod.image_exists(committed):
+            info(f"using committed image {committed!r}")
+            plan = dataclasses.replace(
+                plan,
+                agent_provision=dataclasses.replace(plan.agent_provision, image=committed),
+            )
+        else:
+            docker_mod.build_image(
+                plan.image, _REPO_DIR,
+                dockerfile=plan.dockerfile_path,
             )
 
         internal_network = network_mod.network_name_for_slug(plan.slug)
@@ -111,6 +121,11 @@ def launch(
 
         git_gate_plan = plan.git_gate_plan
         if git_gate_plan.upstreams:
+            git_gate_plan = provision_git_gate_dynamic_keys(
+                plan.manifest.bottle,
+                git_gate_plan,
+                git_gate_state_dir(plan.slug),
+            )
             git_gate_plan = dataclasses.replace(
                 git_gate_plan,
                 internal_network=internal_network,
@@ -179,6 +194,10 @@ def launch(
             None,
             agent_command=plan.agent_command,
             agent_prompt_mode=plan.agent_prompt_mode,
+            agent_provider_template=plan.agent_provider_template,
+            terminal_title=f"{plan.spec.label} ({plan.spec.agent_name})" if plan.spec.label else plan.spec.agent_name,
+            terminal_color=plan.spec.color,
+            agent_workdir=plan.workspace_plan.workdir,
         )
         bottle.prompt_path = provision(plan, bottle)
 

bot_bottle/backend/docker/prepare.py

@@ -1,280 +0,0 @@
-"""Prepare step for the Docker bottle backend.
-
-`resolve_plan` does all host-side resolution (image and container
-names, env-file, prompt-file, proxy plan, runtime detection) and
-returns a frozen DockerBottlePlan. No Docker resources are created;
-the only side effects are scratch files under `stage_dir` and a probe
-of `docker info`. Cross-backend host-side validation has already run
-via the base class's `prepare` template before this is called.
-"""
-
-from __future__ import annotations
-
-import os
-from datetime import datetime, timezone
-from dataclasses import replace
-from pathlib import Path
-
-from ...agent_provider import PROVIDER_TEMPLATES, agent_provision_plan, runtime_for
-from ...egress import Egress
-from ...env import ResolvedEnv, resolve_env
-from ...git_gate import GitGate
-from ...log import die
-from ...supervise import Supervise
-from ...workspace import workspace_plan as resolve_workspace_plan
-from .. import BottleSpec
-from . import util as docker_mod
-from .bottle_plan import DockerBottlePlan
-from .bottle_state import (
-    BottleMetadata,
-    agent_state_dir,
-    bottle_identity,
-    clear_preserve_marker,
-    egress_state_dir,
-    git_gate_state_dir,
-    per_bottle_dockerfile,
-    per_bottle_dockerfile_path,
-    per_bottle_image_tag,
-    supervise_state_dir,
-    write_metadata,
-)
-from .sidecar_bundle import sidecar_bundle_container_name
-
-
-def resolve_plan(
-    spec: BottleSpec,
-    *,
-    stage_dir: Path,
-) -> DockerBottlePlan:
-    """Resolve Docker-specific names and write scratch files. Trusts
-    that the agent and its skills/git-gate keys are present —
-    validation already ran in the base class."""
-    docker_mod.require_docker()
-
-    git_gate = GitGate()
-    egress = Egress()
-    supervise = Supervise()
-
-    manifest = spec.manifest
-    agent = manifest.agents[spec.agent_name]
-    bottle = manifest.bottle_for(spec.agent_name)
-    provider = bottle.agent_provider
-    provider_runtime = runtime_for(provider.template)
-    guest_home = "/home/node"
-    workspace_plan = resolve_workspace_plan(spec, guest_home=guest_home)
-
-    # PRD 0016 follow-up: identity, not bare slug. A fresh `start`
-    # mints a random-suffixed identity (so parallel runs of the same
-    # agent in the same cwd don't collide on container/network
-    # names); a `resume` passes the recorded identity in via
-    # spec.identity to continue an existing bottle's state.
-    slug = spec.identity or bottle_identity(spec.agent_name)
-    # Record the launch metadata so `cli.py resume <identity>` can
-    # reconstruct the spec. Idempotent — re-writes on resume with a
-    # refreshed started_at.
-    write_metadata(BottleMetadata(
-        identity=slug,
-        agent_name=spec.agent_name,
-        cwd=spec.user_cwd if spec.copy_cwd else "",
-        copy_cwd=spec.copy_cwd,
-        started_at=datetime.now(timezone.utc).isoformat(),
-        compose_project=f"bot-bottle-{slug}",
-        backend="docker",
-        label=spec.label,
-        color=spec.color,
-    ))
-    # Clear any leftover preserve marker from a prior capability-block
-    # so this fresh launch can be cleaned up at session-end unless
-    # the agent triggers another capability-block.
-    clear_preserve_marker(slug)
-
-    # PRD 0016 capability-block: if a per-bottle Dockerfile has been
-    # written (via apply_capability_change), the base image becomes
-    # per_bottle_image_tag(slug) built from that file. --cwd still
-    # layers a derived image on top.
-    dockerfile_path = ""
-    if per_bottle_dockerfile(slug) is not None:
-        image_default = per_bottle_image_tag(slug)
-        dockerfile_path = str(per_bottle_dockerfile_path(slug))
-    elif provider.dockerfile:
-        image_default = f"bot-bottle-{provider.template}:{slug}"
-        dockerfile_path = _resolve_manifest_dockerfile(provider.dockerfile, spec)
-    elif provider_runtime.dockerfile:
-        image_default = provider_runtime.image
-        dockerfile_path = provider_runtime.dockerfile
-    elif provider.template not in PROVIDER_TEMPLATES:
-        user_dockerfile = (
-            Path.home() / ".bot-bottle" / "contrib" / provider.template / "Dockerfile"
-        )
-        if user_dockerfile.is_file():
-            image_default = f"bot-bottle-{provider.template}:{slug}"
-            dockerfile_path = str(user_dockerfile)
-        else:
-            image_default = provider_runtime.image
-    else:
-        image_default = provider_runtime.image
-    image = os.environ.get("BOT_BOTTLE_IMAGE", image_default)
-    derived_image = ""
-    runtime_image = image
-    if spec.copy_cwd:
-        derived_image = os.environ.get(
-            "BOT_BOTTLE_DERIVED_IMAGE", f"bot-bottle-cwd:{slug}"
-        )
-        runtime_image = derived_image
-
-    default_container = f"bot-bottle-{slug}"
-    pinned_container = os.environ.get("BOT_BOTTLE_CONTAINER", "")
-    container_name_pinned = bool(pinned_container)
-    if container_name_pinned:
-        container_name = pinned_container
-        if docker_mod.container_exists(container_name):
-            die(
-                f"container '{container_name}' already exists "
-                f"(pinned via BOT_BOTTLE_CONTAINER). "
-                f"Remove it with 'docker rm -f {container_name}' or unset the override."
-            )
-    else:
-        container_name = ""
-        for candidate in docker_mod.container_name_candidates(default_container):
-            if not docker_mod.container_exists(candidate):
-                container_name = candidate
-                break
-        if not container_name:
-            die(
-                f"could not find a free container name after "
-                f"{default_container}-{docker_mod.MAX_CONTAINER_SUFFIX}; "
-                f"clean up old containers with 'docker rm -f <name>'"
-            )
-
-    # Probe the sidecar-bundle container name for an orphan from a
-    # previous run. Otherwise a stale bundle surfaces as a
-    # docker-create conflict deep inside launch() with no actionable
-    # hint; failing fast here points at the cleanup command.
-    bundle_name = sidecar_bundle_container_name(slug)
-    if docker_mod.container_exists(bundle_name):
-        die(
-            f"sidecar bundle container '{bundle_name}' already exists. "
-            f"This is an orphan from a previous run; clean it up with "
-            f"'./cli.py cleanup' (or 'docker rm -f {bundle_name}') and "
-            f"retry."
-        )
-
-    # PRD 0018 chunk 2: prepare-time scratch files live under
-    # ~/.bot-bottle/state/<slug>/<service>/ so chunk 3's compose
-    # bind-mounts can point at stable paths. The state subdirs are
-    # cleaned up by start.py's session-end teardown unless something
-    # explicitly preserves the state dir (capability-block, crash).
-    agent_dir = agent_state_dir(slug)
-    agent_dir.mkdir(parents=True, exist_ok=True)
-    env_file = agent_dir / "agent.env"
-    prompt_file = agent_dir / "prompt.txt"
-    prompt_file.write_text("")
-    prompt_file.chmod(0o600)
-
-    git_gate_dir = git_gate_state_dir(slug)
-    git_gate_dir.mkdir(parents=True, exist_ok=True)
-    git_gate_plan = git_gate.prepare(bottle, slug, git_gate_dir)
-
-    resolved = resolve_env(manifest, spec.agent_name)
-    # Everything that should reach the bottle by-name (so its value
-    # never lands on argv or in env_file) goes into one dict. Nothing
-    # mutates the host os.environ.
-    forwarded_env: dict[str, str] = dict(resolved.forwarded)
-    _write_env_file(resolved, env_file)
-    prompt_file.write_text(agent.prompt)
-
-    use_runsc = docker_mod.runsc_available()
-    agent_provision = agent_provision_plan(
-        template=provider.template,
-        dockerfile=dockerfile_path,
-        state_dir=agent_dir,
-        guest_home=guest_home,
-        forward_host_credentials=provider.forward_host_credentials,
-        auth_token=provider.auth_token,
-        host_env=dict(os.environ),
-        trusted_project_path=workspace_plan.workdir,
-        label=spec.label,
-        color=spec.color,
-    )
-    guest_env = dict(agent_provision.guest_env)
-    for key, val in agent_provision.env_vars.items():
-        guest_env.setdefault(key, val)
-    agent_provision = replace(agent_provision, guest_env=guest_env)
-
-    egress_dir = egress_state_dir(slug)
-    egress_dir.mkdir(parents=True, exist_ok=True)
-    egress_plan = egress.prepare(
-        bottle, slug, egress_dir, agent_provision.egress_routes,
-    )
-
-    supervise_plan = None
-    if bottle.supervise:
-        # Current Dockerfile for the agent image. Read from the repo
-        # root; for `--cwd` derived images the base Dockerfile is what
-        # the agent should propose changes against (the derived layer
-        # is just a workspace copy).
-        # (routes.yaml used to land here too but PRD 0017 chunk 3
-        # moved it behind the `list-egress-routes` MCP tool so the
-        # agent gets live state rather than a launch-time snapshot.)
-        supervise_dockerfile_path = (
-            Path(dockerfile_path)
-            if dockerfile_path
-            else Path(__file__).resolve().parent.parent.parent.parent / "Dockerfile.claude"
-        )
-        dockerfile_content = (
-            supervise_dockerfile_path.read_text(encoding="utf-8")
-            if supervise_dockerfile_path.is_file()
-            else ""
-        )
-        supervise_dir = supervise_state_dir(slug)
-        supervise_dir.mkdir(parents=True, exist_ok=True)
-        supervise_plan = supervise.prepare(
-            slug, supervise_dir,
-            dockerfile_content=dockerfile_content,
-        )
-
-    return DockerBottlePlan(
-        spec=spec,
-        stage_dir=stage_dir,
-        guest_home=guest_home,
-        slug=slug,
-        container_name=container_name,
-        container_name_pinned=container_name_pinned,
-        image=image,
-        derived_image=derived_image,
-        runtime_image=runtime_image,
-        dockerfile_path=dockerfile_path,
-        env_file=env_file,
-        forwarded_env=forwarded_env,
-        prompt_file=prompt_file,
-        git_gate_plan=git_gate_plan,
-        egress_plan=egress_plan,
-        supervise_plan=supervise_plan,
-        use_runsc=use_runsc,
-        agent_provision=agent_provision,
-        workspace_plan=workspace_plan,
-    )
-
-
-def _write_env_file(resolved: ResolvedEnv, env_file: Path) -> None:
-    """Serialize the literal portion of a ResolvedEnv into docker's
-    `--env-file` syntax (NAME=VALUE per line, mode 600 since the file
-    may carry verbatim values from the manifest). Forwarded names ride
-    on the plan as a structured tuple instead."""
-    env_lines: list[str] = []
-    for name, value in resolved.literals.items():
-        if "\n" in value:
-            die(
-                f"env entry {name} (literal) contains a newline; "
-                f"docker --env-file cannot represent multi-line values."
-            )
-        env_lines.append(f"{name}={value}")
-    env_file.write_text("\n".join(env_lines) + ("\n" if env_lines else ""))
-    env_file.chmod(0o600)
-
-
-def _resolve_manifest_dockerfile(path_value: str, spec: BottleSpec) -> str:
-    path = Path(os.path.expanduser(path_value))
-    if not path.is_absolute():
-        path = Path(spec.user_cwd) / path
-    return str(path)

bot_bottle/backend/docker/resolve_plan.py

@@ -0,0 +1,62 @@
+"""Prepare step for the Docker bottle backend.
+
+`resolve_plan` does all host-side resolution (image and container
+names, prompt-file, proxy plan, runtime detection) and returns a
+frozen DockerBottlePlan. No Docker resources are created; the only
+side effects are scratch files under `stage_dir` and a probe of
+`docker info`. Cross-backend host-side validation has already run
+via the base class's `prepare` template before this is called.
+"""
+
+from __future__ import annotations
+
+from pathlib import Path
+
+from . import util as docker_mod
+from .bottle_plan import DockerBottlePlan
+from .. import BottleSpec
+from ...env import ResolvedEnv
+from ...agent_provider import AgentProvisionPlan
+from ...egress import EgressPlan
+from ...manifest import Manifest
+from ...supervise import SupervisePlan
+from ...git_gate import GitGatePlan
+
+def preflight() -> None:
+    docker_mod.require_docker()
+
+
+def build_guest_env(resolved_env: ResolvedEnv) -> dict[str, str]:
+    return dict(resolved_env.literals)
+
+
+def resolve_plan(
+    spec: BottleSpec,
+    manifest: Manifest,
+    slug: str,
+    resolved_env: ResolvedEnv,
+    agent_provision_plan: AgentProvisionPlan,
+    egress_plan: EgressPlan,
+    supervise_plan: SupervisePlan | None,
+    git_gate_plan: GitGatePlan,
+    stage_dir: Path,
+) -> DockerBottlePlan:
+    """Resolve Docker-specific names and write scratch files. Trusts
+    that the agent and its skills/git-gate keys are present —
+    validation already ran in the base class."""
+
+    # ==== docker specific setup ====
+    use_runsc = docker_mod.runsc_available()
+
+    return DockerBottlePlan(
+        spec=spec,
+        manifest=manifest,
+        stage_dir=stage_dir,
+        slug=slug,
+        forwarded_env=dict(resolved_env.forwarded),
+        git_gate_plan=git_gate_plan,
+        egress_plan=egress_plan,
+        supervise_plan=supervise_plan,
+        use_runsc=use_runsc,
+        agent_provision=agent_provision_plan,
+    )

bot_bottle/backend/docker/setup.py

@@ -0,0 +1,89 @@
+"""Host setup + status for the Docker backend.
+
+Unlike Firecracker, the Docker backend needs no privileged one-time
+host provisioning (no TAP pool / nft table) — networks and the sidecar
+bundle are created per-launch. So `setup()` is mostly an install/daemon
+pointer, and `status()` reports whether docker is usable.
+
+This is intentionally minimal; a richer version (daemon config checks,
+gVisor/runsc install guidance, rootless-docker hints) is tracked
+separately. Reached via `DockerBottleBackend.setup` / `.status`, which
+the generic `./cli.py backend {setup,status}` dispatches to.
+"""
+
+from __future__ import annotations
+
+import shutil
+import subprocess
+import sys
+
+from . import util as _util
+
+
+def _docker_on_path() -> bool:
+    return shutil.which("docker") is not None
+
+
+def _daemon_reachable() -> bool:
+    if not _docker_on_path():
+        return False
+    return subprocess.run(
+        ["docker", "info"],
+        stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL, check=False,
+    ).returncode == 0
+
+
+def _print_install_pointer() -> None:
+    sys.stderr.write("Docker is required but was not found on PATH.\n")
+    sys.stderr.write("  macOS: Docker Desktop  https://docs.docker.com/desktop/install/mac-install/\n")
+    sys.stderr.write("  Linux: Docker Engine   https://docs.docker.com/engine/install/\n")
+
+
+def setup() -> int:
+    if not _docker_on_path():
+        _print_install_pointer()
+        return 1
+    sys.stderr.write(
+        "Docker backend: no privileged host setup required — networks and "
+        "the sidecar bundle are created per-launch.\n"
+    )
+    if not _daemon_reachable():
+        sys.stderr.write(
+            "The Docker daemon isn't reachable; start it (e.g. Docker "
+            "Desktop, or `systemctl start docker`).\n"
+        )
+        return 1
+    if not _util.runsc_available():
+        sys.stderr.write(
+            "Optional: register the gVisor (`runsc`) runtime with Docker for "
+            "a userspace syscall barrier; bottles auto-detect and use it.\n"
+        )
+    return 0
+
+
+def teardown() -> int:
+    sys.stderr.write(
+        "Docker backend: nothing to undo — it provisions no privileged host "
+        "state (networks and the sidecar bundle are per-launch and are "
+        "removed by `./cli.py cleanup`). Docker itself is left installed.\n"
+    )
+    return 0
+
+
+def status() -> int:
+    ok = True
+    if _docker_on_path():
+        sys.stderr.write("docker on PATH: yes\n")
+    else:
+        sys.stderr.write("docker on PATH: NO\n")
+        ok = False
+    if ok and _daemon_reachable():
+        sys.stderr.write("docker daemon: reachable\n")
+    elif ok:
+        sys.stderr.write("docker daemon: UNREACHABLE\n")
+        ok = False
+    runsc = _docker_on_path() and _util.runsc_available()
+    sys.stderr.write(f"gVisor runsc runtime: {'registered' if runsc else 'not registered (optional)'}\n")
+    if not ok:
+        sys.stderr.write("\nRun: ./cli.py backend setup --backend=docker\n")
+    return 0 if ok else 1

bot_bottle/backend/docker/util.py

@@ -7,11 +7,10 @@ from __future__ import annotations
 import re
 import shutil
 import subprocess
-import tempfile
 from typing import Iterable, Iterator
 
 from ...log import die, info
-from ...workspace import WorkspacePlan
+# from ...workspace import WorkspacePlan
 
 
 # Cap on the suffix the container-name conflict logic will try before
@@ -118,69 +117,54 @@ def build_image(ref: str, context: str, *, dockerfile: str = "") -> None:
     subprocess.run(args, check=True)
 
 
-def build_image_with_cwd(
-    derived: str,
-    base: str,
-    workspace: WorkspacePlan,
-) -> None:
-    """Build a thin derived image that copies the workspace into
-    the plan's guest path and sets the plan's workdir."""
-    import os
-
-    cwd = str(workspace.host_path)
-    if not os.path.isdir(cwd):
-        die(f"cwd not found at {cwd}")
-    info(f"building image {derived} from {base} with {cwd} -> {workspace.guest_path}")
-    with tempfile.TemporaryDirectory(prefix="bot-bottle-cwd.") as tmp:
-        context_dir = os.path.join(tmp, "context")
-        staged_workspace = os.path.join(context_dir, "workspace")
-        shutil.copytree(
-            cwd,
-            staged_workspace,
-            symlinks=True,
-            ignore=shutil.ignore_patterns(".git"),
-        )
-        dockerfile = (
-            f"FROM {base}\n"
-            f"COPY --chown=node:node workspace/. {workspace.guest_path}\n"
-            f"WORKDIR {workspace.workdir}\n"
-        )
-        subprocess.run(
-            ["docker", "build", "-t", derived, "-f", "-", context_dir],
-            input=dockerfile,
-            text=True,
-            check=True,
-        )
+# def build_image_with_cwd(
+#     derived: str,
+#     base: str,
+#     workspace: "WorkspacePlan",
+# ) -> None:
+#     """Build a thin derived image that copies the workspace into
+#     the plan's guest path and sets the plan's workdir."""
+#     import os
+#
+#     cwd = str(workspace.host_path)
+#     if not os.path.isdir(cwd):
+#         die(f"cwd not found at {cwd}")
+#     info(f"building image {derived} from {base} with {cwd} -> {workspace.guest_path}")
+#     with tempfile.TemporaryDirectory(prefix="bot-bottle-cwd.") as tmp:
+#         context_dir = os.path.join(tmp, "context")
+#         staged_workspace = os.path.join(context_dir, "workspace")
+#         shutil.copytree(
+#             cwd,
+#             staged_workspace,
+#             symlinks=True,
+#             ignore=shutil.ignore_patterns(".git"),
+#         )
+#         dockerfile = (
+#             f"FROM {base}\n"
+#             f"COPY --chown=node:node workspace/. {workspace.guest_path}\n"
+#             f"WORKDIR {workspace.workdir}\n"
+#         )
+#         subprocess.run(
+#             ["docker", "build", "-t", derived, "-f", "-", context_dir],
+#             input=dockerfile,
+#             text=True,
+#             check=True,
+#         )
 
 
-def image_id(ref: str) -> str:
-    """Return the content-addressed image ID (e.g.
-    `sha256:abcd...`) for `ref`. The smolmachines backend keys its
-    `.smolmachine` artifact cache on this, so a Dockerfile change
-    that produces a new image automatically invalidates the cache."""
-    r = subprocess.run(
-        ["docker", "image", "inspect", "--format", "{{.Id}}", ref],
-        capture_output=True,
-        text=True,
-        check=False,
+def commit_container(container_name: str, image_tag: str) -> None:
+    """Run `docker commit <container_name> <image_tag>` to snapshot the
+    running container's filesystem state as a local Docker image."""
+    result = subprocess.run(
+        ["docker", "commit", container_name, image_tag],
+        capture_output=True, text=True, check=False,
     )
-    if r.returncode != 0:
+    if result.returncode != 0:
         die(
-            f"docker image inspect for {ref!r} failed: "
-            f"{(r.stderr or '').strip() or '<no stderr>'}"
+            f"docker commit {container_name!r} → {image_tag!r} failed: "
+            f"{(result.stderr or '').strip() or '<no stderr>'}"
         )
-    return r.stdout.strip()
-
-
-def save(ref: str, output: str) -> None:
-    """`docker save REF -o OUTPUT`. Writes a tarball of the image
-    layers + manifest to the host path. Used by smolmachines
-    prepare to hand the agent image to a containerized crane that
-    pushes it to the ephemeral registry — bypassing the docker
-    daemon's `docker push` (which on Docker Desktop can't reach a
-    host-loopback registry and refuses plain-HTTP pushes to
-    non-loopback hosts)."""
-    subprocess.run(["docker", "save", ref, "-o", output], check=True)
+    info(f"committed {container_name!r} → {image_tag!r}")
 
 
 def _silent_run(cmd: Iterable[str]) -> int:

bot_bottle/backend/egress_apply.py

@@ -0,0 +1,54 @@
+"""Shared base class for host-side egress apply across backends.
+
+Each backend subclasses EgressApplicator and overrides _signal_bundle_reload
+with the backend-specific kill command.
+"""
+
+from __future__ import annotations
+
+from abc import ABC, abstractmethod
+from pathlib import Path
+
+from ..bottle_state import egress_state_dir
+from ..egress import EGRESS_ROUTES_FILENAME
+from ..egress_addon_core import LOG_OFF, load_config
+
+
+class EgressApplyError(RuntimeError):
+    pass
+
+
+class EgressApplicator(ABC):
+    def apply_routes_change(self, slug: str, content: str) -> tuple[str, str]:
+        """Persist `content` to the live routes file and reload egress."""
+        self.validate_routes_content(content)
+        routes_path = self._routes_path(slug)
+        routes_path.parent.mkdir(parents=True, exist_ok=True)
+        before = routes_path.read_text(encoding="utf-8") if routes_path.exists() else ""
+        routes_path.write_text(content, encoding="utf-8")
+        routes_path.chmod(0o600)
+        self._signal_bundle_reload(slug)
+        return before, content
+
+    @staticmethod
+    def validate_routes_content(content: str) -> None:
+        try:
+            config = load_config(content)
+        except ValueError as e:
+            raise EgressApplyError(
+                f"proposed routes.yaml is not valid: {e}"
+            ) from e
+        if config.log != LOG_OFF:
+            raise EgressApplyError(
+                "proposed routes.yaml must not change egress logging"
+            )
+
+    @staticmethod
+    def _routes_path(slug: str) -> Path:
+        return egress_state_dir(slug) / EGRESS_ROUTES_FILENAME
+
+    @abstractmethod
+    def _signal_bundle_reload(self, slug: str) -> None: ...
+
+
+__all__ = ["EgressApplicator", "EgressApplyError"]

bot_bottle/backend/firecracker/__init__.py

@@ -0,0 +1,7 @@
+"""Firecracker backend: Linux KVM microVM isolation (issue #342)."""
+
+from __future__ import annotations
+
+from .backend import FirecrackerBottleBackend
+
+__all__ = ["FirecrackerBottleBackend"]

bot_bottle/backend/firecracker/backend.py

@@ -0,0 +1,112 @@
+"""FirecrackerBottleBackend — Linux microVM implementation.
+
+Replaces smolmachines on Linux (issue #342): mature KVM-based
+isolation via Firecracker, SSH control over a point-to-point TAP, and a
+fail-closed nftables egress boundary. Selected by
+`BOT_BOTTLE_BACKEND=firecracker` or `--backend=firecracker`.
+"""
+
+from __future__ import annotations
+
+from contextlib import contextmanager
+from pathlib import Path
+from typing import Generator, Sequence
+
+from ...agent_provider import AgentProvisionPlan
+from ...egress import EgressPlan
+from ...env import ResolvedEnv
+from ...git_gate import GitGatePlan
+from ...manifest import Manifest
+from ...supervise import SupervisePlan
+from .. import ActiveAgent, BottleBackend, BottleSpec
+from . import cleanup as _cleanup
+from . import enumerate as _enumerate
+from . import launch as _launch
+from . import resolve_plan as _resolve_plan
+from . import util as _util
+from .bottle import FirecrackerBottle
+from .bottle_cleanup_plan import FirecrackerBottleCleanupPlan
+from .bottle_plan import FirecrackerBottlePlan
+
+
+class FirecrackerBottleBackend(
+    BottleBackend["FirecrackerBottlePlan", "FirecrackerBottleCleanupPlan"]
+):
+    name = "firecracker"
+
+    @classmethod
+    def is_available(cls) -> bool:
+        return _util.is_available()
+
+    @classmethod
+    def is_host_capable(cls) -> bool:
+        """Linux + KVM, regardless of whether the `firecracker` binary
+        is installed. Drives default-backend selection so a capable host
+        without the binary still lands on firecracker and gets an
+        install pointer at launch."""
+        return _util.is_host_capable()
+
+    @classmethod
+    def setup(cls) -> int:
+        from . import setup as _setup
+        return _setup.setup()
+
+    @classmethod
+    def status(cls) -> int:
+        from . import setup as _setup
+        return _setup.status()
+
+    @classmethod
+    def teardown(cls) -> int:
+        from . import setup as _setup
+        return _setup.teardown()
+
+    def _preflight(self) -> None:
+        _resolve_plan.preflight()
+
+    def _build_guest_env(self, resolved_env: ResolvedEnv) -> dict[str, str]:
+        return _resolve_plan.build_guest_env(resolved_env)
+
+    def _resolve_plan(
+        self,
+        spec: BottleSpec,
+        *,
+        manifest: Manifest,
+        slug: str,
+        resolved_env: ResolvedEnv,
+        agent_provision_plan: AgentProvisionPlan,
+        egress_plan: EgressPlan,
+        git_gate_plan: GitGatePlan,
+        supervise_plan: SupervisePlan | None,
+        stage_dir: Path,
+    ) -> FirecrackerBottlePlan:
+        return _resolve_plan.resolve_plan(
+            spec,
+            manifest=manifest,
+            slug=slug,
+            resolved_env=resolved_env,
+            agent_provision_plan=agent_provision_plan,
+            egress_plan=egress_plan,
+            supervise_plan=supervise_plan,
+            git_gate_plan=git_gate_plan,
+            stage_dir=stage_dir,
+        )
+
+    @contextmanager
+    def launch(
+        self, plan: FirecrackerBottlePlan
+    ) -> Generator[FirecrackerBottle, None, None]:
+        with _launch.launch(plan, provision=self.provision) as bottle:
+            yield bottle
+
+    def prepare_cleanup(self) -> FirecrackerBottleCleanupPlan:
+        return _cleanup.prepare_cleanup()
+
+    def cleanup(self, plan: FirecrackerBottleCleanupPlan) -> None:
+        _cleanup.cleanup(plan)
+
+    def enumerate_active(self) -> Sequence[ActiveAgent]:
+        return _enumerate.enumerate_active()
+
+    def supervise_mcp_url(self, plan: FirecrackerBottlePlan) -> str:
+        return plan.agent_supervise_url

bot_bottle/backend/firecracker/bottle.py

@@ -0,0 +1,169 @@
+"""Bottle handle for a Firecracker microVM, over SSH.
+
+Every operation routes through SSH to the guest (dropbear, listening on
+the TAP link). `exec` pipes a script over stdin and captures output;
+`cp_in` uses scp; `exec_agent` uses `ssh -t` for an interactive PTY
+session. `ssh -t` forwards the host terminal's SIGWINCH to the remote
+PTY natively, so no separate resize bridge is needed.
+
+Commands run as the image's `node` user via `runuser`, with HOME/USER/
+PATH and the bottle env (HTTPS_PROXY at the sidecar, CA paths, …) set
+per-invocation through `env` (the VM itself just runs the init; it has
+no baked-in process env like a `docker run` container would).
+"""
+
+from __future__ import annotations
+
+import os
+import shlex
+import subprocess
+import sys
+from pathlib import Path
+from typing import Mapping, cast
+
+from ...agent_provider import PromptMode, prompt_args
+from .. import Bottle, ExecResult
+from ..terminal import exec_shell_script
+from . import util
+
+
+_HOME_FOR = {"node": "/home/node", "root": "/root"}
+_DEFAULT_PATH_FOR = {
+    "node": (
+        "/home/node/.local/bin:"
+        "/home/node/.codex/packages/standalone/current/bin:"
+        "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
+    ),
+    "root": "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
+}
+
+
+def _env_assignments_for(user: str, env: Mapping[str, str]) -> list[str]:
+    home = _HOME_FOR.get(user, f"/home/{user}")
+    out = [f"HOME={home}", f"USER={user}"]
+    if "PATH" not in env:
+        out.append(f"PATH={_DEFAULT_PATH_FOR.get(user, _DEFAULT_PATH_FOR['root'])}")
+    for k, v in env.items():
+        out.append(f"{k}={v}")
+    return out
+
+
+class FirecrackerBottle(Bottle):
+    def __init__(
+        self,
+        name: str,
+        *,
+        private_key: Path,
+        guest_ip: str,
+        guest_env: Mapping[str, str] | None = None,
+        prompt_path_in_guest: str | None = None,
+        agent_command: str = "claude",
+        agent_prompt_mode: PromptMode = "append_file",
+        agent_provider_template: str = "claude",
+        terminal_title: str = "",
+        terminal_color: str = "",
+        agent_workdir: str = "/home/node",
+    ) -> None:
+        self.name = name
+        self._private_key = private_key
+        self._guest_ip = guest_ip
+        self._guest_env = dict(guest_env or {})
+        self.prompt_path = prompt_path_in_guest
+        self._agent_prompt_mode = agent_prompt_mode
+        self.agent_command = agent_command
+        self.terminal_title = terminal_title
+        self.terminal_color = terminal_color
+        self.agent_provider_template = agent_provider_template
+        self.agent_workdir = agent_workdir
+
+    def _ssh(self, *, tty: bool) -> list[str]:
+        argv = util.ssh_base_argv(self._private_key, self._guest_ip)
+        if tty:
+            # -t: allocate a remote PTY and forward window-size changes.
+            argv.insert(1, "-t")
+        return argv
+
+    def _agent_remote_argv(self, argv: list[str]) -> list[str]:
+        """The `runuser … <agent> …` command run inside the guest."""
+        full_argv = list(argv)
+        full_argv.extend(
+            prompt_args(
+                cast(PromptMode, self._agent_prompt_mode),
+                self.prompt_path,
+                argv=full_argv,
+            )
+        )
+        remote = ["runuser", "-u", "node", "--",
+                  "env", *_env_assignments_for("node", self._guest_env)]
+        if self.agent_workdir and self.agent_workdir != _HOME_FOR["node"]:
+            remote += ["sh", "-lc", f"cd {self.agent_workdir} && exec \"$@\"",
+                       "bot-bottle-agent"]
+        remote += [self.agent_command, *full_argv]
+        return remote
+
+    def agent_argv(self, argv: list[str], *, tty: bool = True) -> list[str]:
+        return [*self._ssh(tty=tty), "--", *self._agent_remote_argv(argv)]
+
+    def exec_agent(self, argv: list[str], *, tty: bool = True) -> int:
+        agent_argv = self.agent_argv(argv, tty=tty)
+        script = (
+            exec_shell_script(agent_argv, self.terminal_title, self.terminal_color)
+            if tty else None
+        )
+        if script is None:
+            return subprocess.run(agent_argv, check=False).returncode
+        return subprocess.run(["sh", "-lc", script], check=False).returncode
+
+    def exec(self, script: str, *, user: str = "node") -> ExecResult:
+        # Pipe the script over stdin (`sh -s`) so nothing needs shell
+        # quoting through the SSH command line.
+        remote = ["runuser", "-u", user, "--",
+                  "env", *_env_assignments_for(user, self._guest_env),
+                  "/bin/sh", "-s"]
+        result = subprocess.run(
+            [*self._ssh(tty=False), "--", *remote],
+            input=script, capture_output=True, text=True, check=False,
+        )
+        return ExecResult(
+            returncode=result.returncode,
+            stdout=result.stdout,
+            stderr=result.stderr,
+        )
+
+    def cp_in(self, host_path: str, container_path: str) -> None:
+        # Stream a tar over the SSH exec channel rather than scp: the
+        # guest runs dropbear, which ships no sftp-server/scp, but every
+        # agent image has `tar`. Copy so `container_path` becomes a copy
+        # of `host_path` (docker cp semantics — callers rm -rf the
+        # destination first).
+        host_parent = os.path.dirname(host_path.rstrip("/")) or "/"
+        host_base = os.path.basename(host_path.rstrip("/"))
+        guest_parent = os.path.dirname(container_path.rstrip("/")) or "/"
+        guest_base = os.path.basename(container_path.rstrip("/"))
+        remote = (
+            f"mkdir -p {shlex.quote(guest_parent)} && "
+            f"cd {shlex.quote(guest_parent)} && "
+            f"rm -rf {shlex.quote(guest_base)} && tar -xf - && "
+            f"{{ [ {shlex.quote(host_base)} = {shlex.quote(guest_base)} ] || "
+            f"mv {shlex.quote(host_base)} {shlex.quote(guest_base)}; }}"
+        )
+        tar = subprocess.Popen(
+            ["tar", "-C", host_parent, "-cf", "-", host_base],
+            stdout=subprocess.PIPE,
+        )
+        ssh = subprocess.run(
+            [*self._ssh(tty=False), "--", "sh", "-c", remote],
+            stdin=tar.stdout, capture_output=True, text=True, check=False,
+        )
+        tar.wait()
+        if tar.returncode != 0 or ssh.returncode != 0:
+            sys.stderr.write(ssh.stderr)
+            raise subprocess.CalledProcessError(
+                ssh.returncode or tar.returncode,
+                ["cp_in", host_path, container_path],
+            )
+
+    def close(self) -> None:
+        # Real teardown (VM terminate, TAP release) lives on the launch
+        # ExitStack; this is the idempotent alias the ABC expects.
+        pass

bot_bottle/backend/firecracker/bottle_cleanup_plan.py

@@ -0,0 +1,32 @@
+"""Cleanup plan for the Firecracker backend."""
+
+from __future__ import annotations
+
+from dataclasses import dataclass
+
+from ...log import info
+from .. import BottleCleanupPlan
+
+
+@dataclass(frozen=True)
+class FirecrackerBottleCleanupPlan(BottleCleanupPlan):
+    # PIDs of orphaned firecracker VMM processes and the sidecar
+    # containers left behind by previous bottles.
+    vm_pids: tuple[int, ...] = ()
+    containers: tuple[str, ...] = ()
+    run_dirs: tuple[str, ...] = ()
+
+    def print(self) -> None:
+        if self.empty:
+            info("firecracker cleanup: nothing to remove")
+            return
+        for pid in self.vm_pids:
+            info(f"firecracker VM process: pid {pid}")
+        for name in self.containers:
+            info(f"firecracker sidecar container: {name}")
+        for path in self.run_dirs:
+            info(f"firecracker run dir: {path}")
+
+    @property
+    def empty(self) -> bool:
+        return not (self.vm_pids or self.containers or self.run_dirs)

bot_bottle/backend/firecracker/bottle_plan.py

@@ -0,0 +1,63 @@
+"""Plan type for the Firecracker backend."""
+
+from __future__ import annotations
+
+from dataclasses import dataclass, field
+from pathlib import Path
+
+from ...agent_provider import PromptMode
+from .. import BottlePlan
+
+
+@dataclass(frozen=True)
+class FirecrackerBottlePlan(BottlePlan):
+    slug: str
+    forwarded_env: dict[str, str] = field(repr=False)
+    # Stamped by launch once the sidecar is up and its ports are
+    # published on the host-side TAP IP (empty at prepare time).
+    agent_proxy_url: str = ""
+    agent_git_gate_url: str = ""
+    agent_supervise_url: str = ""
+
+    @property
+    def container_name(self) -> str:
+        """Instance name, reused for the sidecar container + VM run dir.
+        Matches the `bot-bottle-<slug>` convention the other backends
+        use so cleanup/enumerate discovery-by-prefix keeps working."""
+        return self.agent_provision.instance_name
+
+    @property
+    def image(self) -> str:
+        return self.agent_provision.image
+
+    @property
+    def dockerfile_path(self) -> str:
+        return self.agent_provision.dockerfile
+
+    @property
+    def prompt_file(self) -> Path:
+        return self.agent_provision.prompt_file
+
+    @property
+    def agent_command(self) -> str:
+        return self.agent_provision.command
+
+    @property
+    def agent_prompt_mode(self) -> PromptMode:
+        return self.agent_provision.prompt_mode
+
+    @property
+    def agent_provider_template(self) -> str:
+        return self.agent_provision.template
+
+    @property
+    def git_gate_insteadof_host(self) -> str:
+        if self.agent_git_gate_url.startswith("http://"):
+            return self.agent_git_gate_url.removeprefix("http://").rstrip("/")
+        return super().git_gate_insteadof_host
+
+    @property
+    def git_gate_insteadof_scheme(self) -> str:
+        if self.agent_git_gate_url.startswith("http://"):
+            return "http"
+        return super().git_gate_insteadof_scheme

bot_bottle/backend/firecracker/cleanup.py

@@ -0,0 +1,90 @@
+"""Cleanup for the Firecracker backend.
+
+Orphans are: firecracker VMM processes whose config lives under our run
+dir, the `bot-bottle-sidecars-*` containers, and the per-bottle run
+dirs. TAP slots free themselves (the flock drops when the launcher
+exits), so there is nothing to reclaim there.
+"""
+
+from __future__ import annotations
+
+import os
+import shutil
+import signal
+import subprocess
+from pathlib import Path
+
+from ...log import info
+from . import util
+from .bottle_cleanup_plan import FirecrackerBottleCleanupPlan
+
+_SIDECAR_PREFIX = "bot-bottle-sidecars-"
+
+
+def _run_root() -> Path:
+    return util.cache_dir() / "run"
+
+
+def _orphan_vm_pids() -> list[int]:
+    """firecracker processes whose --config-file is under our run dir."""
+    run_root = str(_run_root())
+    result = subprocess.run(
+        ["pgrep", "-a", "firecracker"],
+        capture_output=True, text=True, check=False,
+    )
+    if result.returncode != 0:
+        return []
+    pids: list[int] = []
+    for line in result.stdout.splitlines():
+        parts = line.split(None, 1)
+        if len(parts) != 2 or run_root not in parts[1]:
+            continue
+        try:
+            pids.append(int(parts[0]))
+        except ValueError:
+            continue
+    return pids
+
+
+def _sidecar_containers() -> list[str]:
+    result = subprocess.run(
+        ["docker", "ps", "-a", "--format", "{{.Names}}",
+         "--filter", f"name={_SIDECAR_PREFIX}"],
+        capture_output=True, text=True, check=False,
+    )
+    if result.returncode != 0:
+        return []
+    return sorted(n.strip() for n in result.stdout.splitlines() if n.strip())
+
+
+def _run_dirs() -> list[str]:
+    run_root = _run_root()
+    if not run_root.is_dir():
+        return []
+    return sorted(str(p) for p in run_root.iterdir() if p.is_dir())
+
+
+def prepare_cleanup() -> FirecrackerBottleCleanupPlan:
+    return FirecrackerBottleCleanupPlan(
+        vm_pids=tuple(_orphan_vm_pids()),
+        containers=tuple(_sidecar_containers()),
+        run_dirs=tuple(_run_dirs()),
+    )
+
+
+def cleanup(plan: FirecrackerBottleCleanupPlan) -> None:
+    for pid in plan.vm_pids:
+        info(f"kill firecracker VM pid {pid}")
+        try:
+            os.kill(pid, signal.SIGTERM)
+        except ProcessLookupError:
+            pass
+    for name in plan.containers:
+        info(f"docker rm -f {name}")
+        subprocess.run(
+            ["docker", "rm", "-f", name],
+            stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL, check=False,
+        )
+    for path in plan.run_dirs:
+        info(f"rm -rf {path}")
+        shutil.rmtree(path, ignore_errors=True)

bot_bottle/backend/firecracker/enumerate.py

@@ -0,0 +1,43 @@
+"""Active-agent enumeration for the Firecracker backend.
+
+The agent runs in a VM (no container to list), so a live bottle is
+identified by its running sidecar container `bot-bottle-sidecars-<slug>`
+— the same discovery-by-prefix the other backends use.
+"""
+
+from __future__ import annotations
+
+import subprocess
+
+from ...bottle_state import read_metadata
+from .. import ActiveAgent
+
+_SIDECAR_PREFIX = "bot-bottle-sidecars-"
+
+
+def enumerate_active() -> list[ActiveAgent]:
+    result = subprocess.run(
+        ["docker", "ps", "--format", "{{.Names}}",
+         "--filter", f"name={_SIDECAR_PREFIX}"],
+        capture_output=True, text=True, check=False,
+    )
+    if result.returncode != 0:
+        return []
+    out: list[ActiveAgent] = []
+    for name in sorted(n.strip() for n in result.stdout.splitlines() if n.strip()):
+        slug = name[len(_SIDECAR_PREFIX):]
+        metadata = read_metadata(slug)
+        if metadata is None or metadata.backend != "firecracker":
+            # Skip sidecars owned by another backend (docker shares the
+            # container-name prefix).
+            continue
+        out.append(ActiveAgent(
+            backend_name="firecracker",
+            slug=slug,
+            agent_name=metadata.agent_name,
+            started_at=metadata.started_at,
+            services=(),
+            label=metadata.label,
+            color=metadata.color,
+        ))
+    return out

bot_bottle/backend/firecracker/firecracker_vm.py

@@ -0,0 +1,173 @@
+"""Firecracker microVM process lifecycle.
+
+A bottle VM is one `firecracker` process booted from a JSON config
+(kernel + writable rootfs ext4 + one TAP network interface). We run it
+`--no-api`: all configuration is in the config file, and teardown is a
+process signal — the microVM dies with its VMM, which is exactly the
+ephemeral-bottle semantics we want. No API socket, no runtime
+reconfiguration.
+
+The guest gets its IP from the kernel `ip=` cmdline (kernel-level
+autoconfig, no in-guest iproute2) and its SSH pubkey from a `bb_pubkey=`
+cmdline arg the init decodes.
+"""
+
+from __future__ import annotations
+
+import base64
+import json
+import signal
+import subprocess
+import time
+from dataclasses import dataclass
+from pathlib import Path
+
+from ...log import die, info
+from . import util
+
+
+# Serial console off the critical path but captured to a log for
+# debugging boot failures. `reboot=k panic=1 pci=off` are the standard
+# Firecracker guest args; `i8042.*` skip the (absent) PS/2 probe to
+# shave boot time.
+_BASE_BOOT_ARGS = (
+    "console=ttyS0 reboot=k panic=1 pci=off "
+    "i8042.noaux i8042.nomux i8042.nopnp i8042.dumbkbd "
+    "root=/dev/vda rw init=/bb-init"
+)
+
+
+@dataclass
+class VmHandle:
+    """A running microVM: its VMM process, guest IP, and console log."""
+
+    process: subprocess.Popen[bytes]
+    guest_ip: str
+    console_log: Path
+
+    def is_alive(self) -> bool:
+        return self.process.poll() is None
+
+    def terminate(self) -> None:
+        """Stop the VMM (and thus the guest). SIGTERM, then SIGKILL."""
+        if self.process.poll() is not None:
+            return
+        self.process.send_signal(signal.SIGTERM)
+        try:
+            self.process.wait(timeout=5)
+        except subprocess.TimeoutExpired:
+            self.process.kill()
+            self.process.wait(timeout=5)
+
+
+def _boot_args(guest_ip: str, host_ip: str, pubkey: str) -> str:
+    # ip=<client>::<gw>:<netmask>::<dev>:off — /31 point-to-point link,
+    # so netmask is 255.255.255.254 and the gateway is the host TAP IP.
+    ip_arg = f"ip={guest_ip}::{host_ip}:255.255.255.254::eth0:off"
+    pub_b64 = base64.b64encode(pubkey.encode()).decode()
+    return f"{_BASE_BOOT_ARGS} {ip_arg} bb_pubkey={pub_b64}"
+
+
+def _config(
+    *,
+    rootfs: Path,
+    tap: str,
+    guest_ip: str,
+    host_ip: str,
+    pubkey: str,
+    vcpus: int,
+    mem_mib: int,
+    guest_mac: str,
+) -> dict[str, object]:
+    return {
+        "boot-source": {
+            "kernel_image_path": str(util.kernel_path()),
+            "boot_args": _boot_args(guest_ip, host_ip, pubkey),
+        },
+        "drives": [
+            {
+                "drive_id": "rootfs",
+                "path_on_host": str(rootfs),
+                "is_root_device": True,
+                "is_read_only": False,
+            }
+        ],
+        "network-interfaces": [
+            {
+                "iface_id": "eth0",
+                "host_dev_name": tap,
+                "guest_mac": guest_mac,
+            }
+        ],
+        "machine-config": {
+            "vcpu_count": vcpus,
+            "mem_size_mib": mem_mib,
+        },
+    }
+
+
+def boot(
+    *,
+    name: str,
+    rootfs: Path,
+    tap: str,
+    guest_ip: str,
+    host_ip: str,
+    pubkey: str,
+    run_dir: Path,
+    vcpus: int = 2,
+    mem_mib: int = 2048,
+    guest_mac: str = "06:00:AC:10:00:02",
+) -> VmHandle:
+    """Write the config and launch the VMM. Returns once the process is
+    spawned; callers wait for SSH readiness separately."""
+    run_dir.mkdir(parents=True, exist_ok=True)
+    config_path = run_dir / "config.json"
+    console_log = run_dir / "console.log"
+    config_path.write_text(json.dumps(
+        _config(
+            rootfs=rootfs, tap=tap, guest_ip=guest_ip, host_ip=host_ip,
+            pubkey=pubkey, vcpus=vcpus, mem_mib=mem_mib, guest_mac=guest_mac,
+        ),
+        indent=2,
+    ))
+
+    info(f"booting microVM {name} on {tap} (guest {guest_ip})")
+    log_fh = console_log.open("wb")
+    process = subprocess.Popen(
+        ["firecracker", "--no-api", "--config-file", str(config_path)],
+        stdout=log_fh, stderr=subprocess.STDOUT, stdin=subprocess.DEVNULL,
+    )
+    return VmHandle(process=process, guest_ip=guest_ip, console_log=console_log)
+
+
+def wait_for_ssh(
+    vm: VmHandle, private_key: Path, *, timeout: float = 30.0,
+) -> None:
+    """Poll SSH until the guest accepts a command or the deadline
+    passes. Dies (with the console tail) if the VMM exits early or the
+    guest never comes up — a boot failure must be loud, not a hang."""
+    deadline = time.monotonic() + timeout
+    probe = util.ssh_base_argv(private_key, vm.guest_ip) + ["true"]
+    while time.monotonic() < deadline:
+        if not vm.is_alive():
+            die(f"microVM exited during boot (rc={vm.process.returncode}).\n"
+                f"{_console_tail(vm.console_log)}")
+        result = subprocess.run(
+            probe, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL,
+            check=False,
+        )
+        if result.returncode == 0:
+            return
+        time.sleep(0.5)
+    die(f"microVM {vm.guest_ip} did not accept SSH within {timeout:.0f}s.\n"
+        f"{_console_tail(vm.console_log)}")
+
+
+def _console_tail(console_log: Path, lines: int = 25) -> str:
+    try:
+        text = console_log.read_text(errors="replace").splitlines()
+    except OSError:
+        return "(no console log)"
+    tail = "\n".join(text[-lines:])
+    return f"--- guest console (last {lines} lines) ---\n{tail}"

bot_bottle/backend/firecracker/freezer.py

@@ -0,0 +1,76 @@
+"""FirecrackerFreezer — snapshot a running microVM to a Docker image.
+
+The VM is live and can't be block-copied safely, so — like the macOS
+backend — we stream the guest root filesystem out over the control
+channel (SSH here) and rebuild an image from it. The bottle keeps
+running after the snapshot.
+"""
+
+from __future__ import annotations
+
+import json
+import os
+import subprocess
+import tempfile
+from pathlib import Path
+
+from ...log import die, info
+from .. import ActiveAgent
+from ..freeze import Freezer
+from . import util
+
+
+class FirecrackerFreezer(Freezer):
+    backend_name = "firecracker"
+
+    def _freeze(self, agent: ActiveAgent) -> str:
+        run_dir = util.cache_dir() / "run" / agent.slug
+        private_key = run_dir / "bottle_id_ed25519"
+        guest_ip = _guest_ip_from_config(run_dir / "config.json")
+        if not private_key.is_file() or not guest_ip:
+            die(f"cannot freeze {agent.slug}: run dir {run_dir} is missing the "
+                f"SSH key or VM config (is the bottle still running?)")
+        image_tag = f"bot-bottle-committed-{agent.slug}:latest"
+        _commit_via_ssh(private_key, guest_ip, image_tag)
+        info(f"committed {agent.slug} -> {image_tag!r}")
+        return image_tag
+
+    def _export_hint(self, slug: str, image_ref: str) -> None:
+        info(f"to export for migration:      docker image save {image_ref} "
+             f"-o {slug}.tar")
+
+
+def _guest_ip_from_config(config_path: Path) -> str:
+    try:
+        cfg = json.loads(config_path.read_text())
+    except (OSError, json.JSONDecodeError):
+        return ""
+    boot_args = cfg.get("boot-source", {}).get("boot_args", "")
+    for token in boot_args.split():
+        if token.startswith("ip="):
+            # ip=<client>::<gw>:<mask>::<dev>:off
+            return token[len("ip="):].split(":", 1)[0]
+    return ""
+
+
+def _commit_via_ssh(private_key: Path, guest_ip: str, image_tag: str) -> None:
+    with tempfile.TemporaryDirectory(prefix="bot-bottle-fc-commit.") as tmp:
+        rootfs_tar = os.path.join(tmp, "rootfs.tar")
+        ssh = util.ssh_base_argv(private_key, guest_ip)
+        with open(rootfs_tar, "wb") as tar_out:
+            result = subprocess.run(
+                [*ssh, "--", "tar", "--create", "--one-file-system",
+                 "--exclude=./proc", "--exclude=./sys", "--exclude=./dev",
+                 "--exclude=./run", "--file=-", "--directory=/", "."],
+                stdout=tar_out, stderr=subprocess.PIPE, check=False,
+            )
+        if result.returncode != 0:
+            die(f"ssh tar for {guest_ip} failed: "
+                f"{(result.stderr or b'').decode().strip() or '<no stderr>'}")
+        with open(os.path.join(tmp, "Dockerfile"), "w", encoding="utf-8") as f:
+            f.write("FROM scratch\nADD rootfs.tar /\nUSER node\nWORKDIR /home/node\n")
+        build = subprocess.run(
+            ["docker", "build", "-t", image_tag, tmp], check=False,
+        )
+        if build.returncode != 0:
+            die(f"docker build for {image_tag!r} failed")

bot_bottle/backend/firecracker/isolation_probe.py

@@ -0,0 +1,116 @@
+"""Empirical, post-boot isolation probe — the authoritative fail-closed
+egress-boundary check.
+
+The pre-boot nft check can't be trusted on every host (listing an
+nftables table typically needs root; the launcher runs unprivileged).
+So before the agent ever runs, we prove the boundary directly: open a
+canary TCP listener on a host IP the VM must NOT be able to reach (the
+host's primary non-TAP address), then have the guest try to connect. If
+the isolation rules are in force the connection is dropped and times
+out; if it succeeds, the VM can reach host services it shouldn't — a
+sandbox escape — and we refuse to continue.
+
+The listener is load-bearing: without it a "blocked" result could just
+be connection-refused. With it, a reachable canary means a real leak
+and a timeout means a real drop.
+"""
+
+from __future__ import annotations
+
+import socket
+import subprocess
+import threading
+from pathlib import Path
+
+from ...log import die, info, warn
+from . import util
+
+
+def _host_primary_ip() -> str:
+    """The source IP the host uses for off-box traffic (its LAN
+    address) — a canary the VM must not reach. Empty if the host has no
+    such route (isolated box)."""
+    result = subprocess.run(
+        ["ip", "-o", "route", "get", "1.1.1.1"],
+        capture_output=True, text=True, check=False,
+    )
+    if result.returncode != 0:
+        return ""
+    tokens = result.stdout.split()
+    # `... src <addr> ...` — the address the host would use as source.
+    if "src" in tokens:
+        idx = tokens.index("src")
+        if idx + 1 < len(tokens):
+            return tokens[idx + 1]
+    return ""
+
+
+# Guest-side connect test: exit 0 = reached the canary (LEAK), 1 =
+# blocked (good), 2 = no usable tool (inconclusive -> fail-closed).
+_GUEST_PROBE = r"""
+h="$1"; p="$2"
+if command -v python3 >/dev/null 2>&1; then
+  python3 - "$h" "$p" <<'PY'
+import socket, sys
+s = socket.socket(); s.settimeout(3)
+sys.exit(0 if s.connect_ex((sys.argv[1], int(sys.argv[2]))) == 0 else 1)
+PY
+elif command -v bash >/dev/null 2>&1; then
+  timeout 3 bash -c "exec 3<>/dev/tcp/$h/$p" >/dev/null 2>&1
+elif command -v nc >/dev/null 2>&1; then
+  nc -w3 -z "$h" "$p" >/dev/null 2>&1
+else
+  exit 2
+fi
+"""
+
+
+def verify_isolation(private_key: Path, guest_ip: str) -> None:
+    """Prove the VM cannot reach the host's primary IP. Dies
+    (fail-closed) on a confirmed leak or if the guest has no tool to
+    run the test. Warns (does not fail) when the host has no canary
+    address to test against."""
+    canary_ip = _host_primary_ip()
+    if not canary_ip:
+        warn("isolation probe skipped: host has no non-TAP route to test "
+             "against (isolated box).")
+        return
+
+    listener = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+    listener.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+    listener.bind((canary_ip, 0))
+    listener.listen(1)
+    listener.settimeout(6)
+    canary_port = listener.getsockname()[1]
+
+    accepted: list[bool] = []
+
+    def _accept() -> None:
+        try:
+            conn, _ = listener.accept()
+            accepted.append(True)
+            conn.close()
+        except OSError:
+            pass
+
+    thread = threading.Thread(target=_accept, daemon=True)
+    thread.start()
+
+    ssh = util.ssh_base_argv(private_key, guest_ip)
+    result = subprocess.run(
+        [*ssh, "--", "sh", "-s", "--", canary_ip, str(canary_port)],
+        input=_GUEST_PROBE, capture_output=True, text=True, check=False,
+    )
+    thread.join(timeout=7)
+    listener.close()
+
+    if result.returncode == 0 or accepted:
+        die(f"ISOLATION FAILURE: the VM reached the host canary "
+            f"{canary_ip}:{canary_port}. The egress boundary is not in "
+            f"force — refusing to run the agent (fail-closed). Verify the "
+            f"nft table with: ./cli.py backend setup --backend=firecracker")
+    if result.returncode == 2:
+        die("isolation probe inconclusive: the guest has no python3/bash/nc "
+            "to run the connectivity test. Refusing to continue "
+            "(fail-closed).")
+    info(f"isolation verified: VM cannot reach host {canary_ip}")

bot_bottle/backend/firecracker/launch.py

@@ -0,0 +1,404 @@
+"""Launch flow for the Firecracker backend.
+
+Per bottle:
+  1. mint the egress CA, build the agent image (docker), export it to a
+     cached ext4 rootfs;
+  2. claim a free TAP pool slot (rootless flock);
+  3. bring up the Docker sidecar bundle, publishing egress / git-gate /
+     supervise on the slot's host-side TAP IP at fixed ports;
+  4. boot the microVM on that TAP; wait for SSH;
+  5. provision (CA, prompt, skills, workspace, git, supervise) over SSH.
+
+Isolation is enforced by the operator-provisioned nft table (checked
+fail-closed in preflight): a VM reaches only its sidecar (DNAT'd from
+the host TAP IP) and nothing else. The agent's HTTPS_PROXY therefore
+points at `http://<host_tap_ip>:9099`, its only route to the world.
+"""
+
+from __future__ import annotations
+
+import dataclasses
+import os
+import subprocess
+from contextlib import ExitStack, contextmanager
+from pathlib import Path
+from typing import Callable, Generator
+
+from ...bottle_state import (
+    egress_state_dir,
+    git_gate_state_dir,
+    read_committed_image,
+)
+from ...egress import (
+    EGRESS_ROUTES_IN_CONTAINER,
+    egress_agent_env_entries,
+    egress_resolve_token_values,
+    egress_sidecar_env_entries,
+)
+from ...git_gate import (
+    provision_git_gate_dynamic_keys,
+    revoke_git_gate_provisioned_keys,
+)
+from ...log import die, info, warn
+from ...supervise import DB_PATH_IN_CONTAINER, SUPERVISE_PORT
+from ...util import expand_tilde
+from ..docker.egress import (
+    EGRESS_CA_IN_CONTAINER,
+    EGRESS_PORT,
+    egress_tls_init,
+)
+from ..docker.git_gate import (
+    GIT_GATE_ACCESS_HOOK_IN_CONTAINER,
+    GIT_GATE_CREDS_DIR_IN_CONTAINER,
+    GIT_GATE_ENTRYPOINT_IN_CONTAINER,
+    GIT_GATE_HOOK_IN_CONTAINER,
+)
+from ..docker.sidecar_bundle import (
+    SIDECAR_BUNDLE_DOCKERFILE,
+    SIDECAR_BUNDLE_IMAGE,
+)
+from ..util import AGENT_CA_BUNDLE, AGENT_CA_PATH
+from . import firecracker_vm, isolation_probe, netpool, util
+from .bottle import FirecrackerBottle
+from .bottle_plan import FirecrackerBottlePlan
+
+
+_REPO_DIR = str(Path(__file__).resolve().parent.parent.parent.parent)
+_GIT_HTTP_PORT = 9420
+_GIT_GATE_READY_FILE = "/run/git-gate/ready"
+
+
+def sidecar_container_name(slug: str) -> str:
+    return f"bot-bottle-sidecars-{slug}"
+
+
+@contextmanager
+def launch(
+    plan: FirecrackerBottlePlan,
+    *,
+    provision: Callable[[FirecrackerBottlePlan, "FirecrackerBottle"], str | None],
+) -> Generator[FirecrackerBottle, None, None]:
+    stack = ExitStack()
+    bottle_for_revoke = plan.manifest.bottle
+    git_gate_dir_for_revoke = git_gate_state_dir(plan.slug)
+
+    def teardown() -> None:
+        teardown_exc: BaseException | None = None
+        try:
+            stack.close()
+        except BaseException as exc:  # noqa: W0718 - teardown must continue
+            teardown_exc = exc
+            warn(f"firecracker teardown failed: {exc!r}")
+        revoke_git_gate_provisioned_keys(bottle_for_revoke, git_gate_dir_for_revoke)
+        if teardown_exc is not None:
+            raise teardown_exc
+
+    try:
+        plan = _mint_certs(plan)
+        plan = _build_agent_image(plan)
+
+        # Claim a TAP slot; the flock is held until teardown closes it.
+        slot, lock = netpool.allocate(plan.slug)
+        stack.callback(lock.close)
+        info(f"firecracker slot {slot.iface}: host={slot.host_ip} "
+             f"guest={slot.guest_ip}")
+
+        plan = _provision_git_gate_keys(plan)
+
+        sidecar_name = sidecar_container_name(plan.slug)
+        _force_remove_container(sidecar_name)
+        _start_sidecar_bundle(plan, sidecar_name, slot.host_ip)
+        stack.callback(_force_remove_container, sidecar_name)
+        _stage_git_gate(plan, sidecar_name)
+
+        plan = _stamp_agent_urls(plan, slot.host_ip)
+
+        # Build the per-bottle rootfs + SSH key, then boot.
+        base_dir = util.build_base_rootfs_dir(plan.image)
+        run_dir = util.cache_dir() / "run" / plan.slug
+        run_dir.mkdir(parents=True, exist_ok=True)
+        rootfs = run_dir / "rootfs.ext4"
+        util.build_rootfs_ext4(base_dir, rootfs)
+        private_key, pubkey = util.generate_keypair(run_dir)
+
+        vm = firecracker_vm.boot(
+            name=plan.container_name,
+            rootfs=rootfs,
+            tap=slot.iface,
+            guest_ip=slot.guest_ip,
+            host_ip=slot.host_ip,
+            pubkey=pubkey,
+            run_dir=run_dir,
+        )
+        stack.callback(vm.terminate)
+        firecracker_vm.wait_for_ssh(vm, private_key)
+
+        # Authoritative fail-closed egress-boundary check, before the
+        # agent runs: prove the VM cannot reach the host directly.
+        isolation_probe.verify_isolation(private_key, slot.guest_ip)
+
+        bottle = FirecrackerBottle(
+            plan.container_name,
+            private_key=private_key,
+            guest_ip=slot.guest_ip,
+            guest_env=_agent_guest_env(plan, slot.host_ip),
+            agent_command=plan.agent_command,
+            agent_prompt_mode=plan.agent_prompt_mode,
+            agent_provider_template=plan.agent_provider_template,
+            terminal_title=(
+                f"{plan.spec.label} ({plan.spec.agent_name})"
+                if plan.spec.label else plan.spec.agent_name
+            ),
+            terminal_color=plan.spec.color,
+            agent_workdir=plan.workspace_plan.workdir,
+        )
+        bottle.prompt_path = provision(plan, bottle)
+
+        yield bottle
+    finally:
+        teardown()
+
+
+def _mint_certs(plan: FirecrackerBottlePlan) -> FirecrackerBottlePlan:
+    egress_ca_host, egress_ca_cert_only = egress_tls_init(egress_state_dir(plan.slug))
+    egress_plan = dataclasses.replace(
+        plan.egress_plan,
+        mitmproxy_ca_host_path=egress_ca_host,
+        mitmproxy_ca_cert_only_host_path=egress_ca_cert_only,
+    )
+    return dataclasses.replace(plan, egress_plan=egress_plan)
+
+
+def _build_agent_image(plan: FirecrackerBottlePlan) -> FirecrackerBottlePlan:
+    _docker_build(SIDECAR_BUNDLE_IMAGE, _REPO_DIR, dockerfile=SIDECAR_BUNDLE_DOCKERFILE)
+    committed = read_committed_image(plan.slug)
+    if committed and _image_exists(committed):
+        info(f"using committed image {committed!r}")
+        return dataclasses.replace(
+            plan,
+            agent_provision=dataclasses.replace(plan.agent_provision, image=committed),
+        )
+    _docker_build(plan.image, _REPO_DIR, dockerfile=plan.dockerfile_path)
+    return plan
+
+
+def _provision_git_gate_keys(plan: FirecrackerBottlePlan) -> FirecrackerBottlePlan:
+    if not plan.git_gate_plan.upstreams:
+        return plan
+    git_gate_plan = provision_git_gate_dynamic_keys(
+        plan.manifest.bottle, plan.git_gate_plan, git_gate_state_dir(plan.slug),
+    )
+    return dataclasses.replace(plan, git_gate_plan=git_gate_plan)
+
+
+def _stamp_agent_urls(
+    plan: FirecrackerBottlePlan, host_ip: str,
+) -> FirecrackerBottlePlan:
+    proxy_url = f"http://{host_ip}:{EGRESS_PORT}"
+    supervise_url = (
+        f"http://{host_ip}:{SUPERVISE_PORT}/" if plan.supervise_plan is not None else ""
+    )
+    git_gate_url = (
+        f"http://{host_ip}:{_GIT_HTTP_PORT}" if plan.git_gate_plan.upstreams else ""
+    )
+    return dataclasses.replace(
+        plan,
+        agent_proxy_url=proxy_url,
+        agent_git_gate_url=git_gate_url,
+        agent_supervise_url=supervise_url,
+    )
+
+
+# --- sidecar bundle (Docker) ----------------------------------------
+
+def _start_sidecar_bundle(
+    plan: FirecrackerBottlePlan, sidecar_name: str, host_ip: str,
+) -> None:
+    argv = ["docker", "run", "--name", sidecar_name, "--detach", "--rm",
+            "-e", f"BOT_BOTTLE_SIDECAR_DAEMONS={','.join(_sidecar_daemons(plan))}"]
+    for entry in _sidecar_env_entries(plan):
+        argv += ["-e", entry]
+    for host_path, container_path, read_only in _sidecar_mounts(plan):
+        argv += ["-v", f"{host_path}:{container_path}{':ro' if read_only else ''}"]
+    # Publish on the slot's host TAP IP at fixed ports — each bottle
+    # has a distinct host_ip, so fixed ports never collide, and the VM
+    # reaches them at a stable, well-known address (its only route out).
+    for port in _sidecar_ports(plan):
+        argv += ["-p", f"{host_ip}:{port}:{port}"]
+    argv.append(SIDECAR_BUNDLE_IMAGE)
+
+    effective_env = {**dict(os.environ), **plan.agent_provision.provisioned_env}
+    token_values = egress_resolve_token_values(
+        plan.egress_plan.token_env_map, effective_env,
+    )
+    env = {**os.environ, **token_values}
+    info(f"docker run sidecar bundle {sidecar_name} (published on {host_ip})")
+    result = subprocess.run(argv, capture_output=True, text=True, env=env, check=False)
+    if result.returncode != 0:
+        die(f"docker run for sidecar bundle {sidecar_name} failed: "
+            f"{(result.stderr or '').strip() or '<no stderr>'}")
+
+
+def _sidecar_daemons(plan: FirecrackerBottlePlan) -> tuple[str, ...]:
+    daemons = ["egress"]
+    if plan.git_gate_plan.upstreams:
+        daemons += ["git-gate", "git-http"]
+    if plan.supervise_plan is not None:
+        daemons.append("supervise")
+    return tuple(daemons)
+
+
+def _sidecar_ports(plan: FirecrackerBottlePlan) -> tuple[int, ...]:
+    ports = [EGRESS_PORT]
+    if plan.git_gate_plan.upstreams:
+        ports.append(_GIT_HTTP_PORT)
+    if plan.supervise_plan is not None:
+        ports.append(SUPERVISE_PORT)
+    return tuple(ports)
+
+
+def _sidecar_env_entries(plan: FirecrackerBottlePlan) -> tuple[str, ...]:
+    env: list[str] = list(egress_sidecar_env_entries(plan.egress_plan))
+    if plan.git_gate_plan.upstreams:
+        env.append(f"BOT_BOTTLE_GIT_GATE_READY_FILE={_GIT_GATE_READY_FILE}")
+    if plan.supervise_plan is not None:
+        env += [
+            f"SUPERVISE_BOTTLE_SLUG={plan.slug}",
+            f"SUPERVISE_DB_PATH={DB_PATH_IN_CONTAINER}",
+            f"SUPERVISE_PORT={SUPERVISE_PORT}",
+        ]
+    return tuple(env)
+
+
+def _sidecar_mounts(
+    plan: FirecrackerBottlePlan,
+) -> tuple[tuple[str, str, bool], ...]:
+    mounts: list[tuple[str, str, bool]] = []
+    ep = plan.egress_plan
+    mounts.append((str(ep.mitmproxy_ca_host_path.parent),
+                   str(Path(EGRESS_CA_IN_CONTAINER).parent), False))
+    if ep.routes:
+        mounts.append((str(ep.routes_path.parent),
+                       str(Path(EGRESS_ROUTES_IN_CONTAINER).parent), True))
+    sp = plan.supervise_plan
+    if sp is not None:
+        mounts.append((str(sp.db_path.parent),
+                       str(Path(DB_PATH_IN_CONTAINER).parent), False))
+    return tuple(mounts)
+
+
+def _stage_git_gate(plan: FirecrackerBottlePlan, sidecar_name: str) -> None:
+    gp = plan.git_gate_plan
+    if not gp.upstreams:
+        return
+    _docker_exec(sidecar_name, [
+        "mkdir", "-p",
+        str(Path(GIT_GATE_HOOK_IN_CONTAINER).parent),
+        GIT_GATE_CREDS_DIR_IN_CONTAINER, "/git",
+        str(Path(_GIT_GATE_READY_FILE).parent),
+    ])
+    for host_path, container_path in _git_gate_files(plan):
+        _docker_cp(host_path, f"{sidecar_name}:{container_path}")
+    _docker_exec(sidecar_name, [
+        "sh", "-c",
+        f"chmod 755 {GIT_GATE_ENTRYPOINT_IN_CONTAINER} "
+        f"{GIT_GATE_HOOK_IN_CONTAINER} {GIT_GATE_ACCESS_HOOK_IN_CONTAINER} && "
+        f"chmod 600 {GIT_GATE_CREDS_DIR_IN_CONTAINER}/* && "
+        f"touch {_GIT_GATE_READY_FILE}",
+    ])
+
+
+def _git_gate_files(plan: FirecrackerBottlePlan) -> tuple[tuple[str, str], ...]:
+    gp = plan.git_gate_plan
+    files: list[tuple[str, str]] = [
+        (str(gp.entrypoint_script), GIT_GATE_ENTRYPOINT_IN_CONTAINER),
+        (str(gp.hook_script), GIT_GATE_HOOK_IN_CONTAINER),
+        (str(gp.access_hook_script), GIT_GATE_ACCESS_HOOK_IN_CONTAINER),
+    ]
+    for upstream in gp.upstreams:
+        files.append((expand_tilde(upstream.identity_file),
+                      f"{GIT_GATE_CREDS_DIR_IN_CONTAINER}/{upstream.name}-key"))
+        if upstream.known_hosts_file:
+            files.append((str(upstream.known_hosts_file),
+                          f"{GIT_GATE_CREDS_DIR_IN_CONTAINER}/{upstream.name}-known_hosts"))
+    return tuple(files)
+
+
+# --- agent guest env -------------------------------------------------
+
+def _agent_guest_env(plan: FirecrackerBottlePlan, host_ip: str) -> dict[str, str]:
+    """Env injected into every agent/exec call over SSH. The VM has no
+    baked process env (it just runs init), so the proxy/CA/git/supervise
+    wiring is applied per-invocation."""
+    proxy_url = f"http://{host_ip}:{EGRESS_PORT}"
+    no_proxy = f"localhost,127.0.0.1,{host_ip}"
+    env: dict[str, str] = {
+        "HTTPS_PROXY": proxy_url, "HTTP_PROXY": proxy_url,
+        "https_proxy": proxy_url, "http_proxy": proxy_url,
+        "NO_PROXY": no_proxy, "no_proxy": no_proxy,
+        "NODE_EXTRA_CA_CERTS": AGENT_CA_PATH,
+        "SSL_CERT_FILE": AGENT_CA_BUNDLE,
+        "REQUESTS_CA_BUNDLE": AGENT_CA_BUNDLE,
+    }
+    if plan.agent_git_gate_url:
+        env["GIT_GATE_URL"] = plan.agent_git_gate_url
+    if plan.agent_supervise_url:
+        env["MCP_SUPERVISE_URL"] = plan.agent_supervise_url
+    for entry in egress_agent_env_entries(plan.egress_plan):
+        key, _, value = entry.partition("=")
+        env[key] = value
+    env.update(plan.agent_provision.guest_env)
+    # Forwarded (bare-name) env: resolve host values now, since the VM
+    # can't inherit them from a `docker run --env NAME`.
+    for name in plan.forwarded_env:
+        value = os.environ.get(name)
+        if value is not None:
+            env[name] = value
+    return env
+
+
+# --- docker helpers --------------------------------------------------
+
+def _docker_build(ref: str, context: str, *, dockerfile: str = "") -> None:
+    info(f"docker build {ref}")
+    args = ["docker", "build", "-t", ref]
+    if dockerfile:
+        if not os.path.isabs(dockerfile):
+            dockerfile = os.path.join(context, dockerfile)
+        args += ["-f", dockerfile]
+    args.append(context)
+    result = subprocess.run(args, check=False)
+    if result.returncode != 0:
+        die(f"docker build for {ref!r} failed")
+
+
+def _image_exists(ref: str) -> bool:
+    return subprocess.run(
+        ["docker", "image", "inspect", ref],
+        stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL, check=False,
+    ).returncode == 0
+
+
+def _force_remove_container(name: str) -> None:
+    subprocess.run(
+        ["docker", "rm", "-f", name],
+        stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL, check=False,
+    )
+
+
+def _docker_exec(name: str, argv: list[str]) -> None:
+    result = subprocess.run(
+        ["docker", "exec", name, *argv], capture_output=True, text=True, check=False,
+    )
+    if result.returncode != 0:
+        die(f"docker exec in {name} failed: "
+            f"{(result.stderr or '').strip() or '<no stderr>'}")
+
+
+def _docker_cp(host_path: str, dest: str) -> None:
+    result = subprocess.run(
+        ["docker", "cp", host_path, dest], capture_output=True, text=True, check=False,
+    )
+    if result.returncode != 0:
+        die(f"docker cp {host_path} -> {dest} failed: "
+            f"{(result.stderr or '').strip() or '<no stderr>'}")

bot_bottle/backend/firecracker/netpool.py

@@ -0,0 +1,318 @@
+"""Firecracker network pool: constants, IP math, allocation, and the
+config renderers (shell command + NixOS module) shown to operators.
+
+The Firecracker backend needs a privileged one-time network setup:
+a pool of point-to-point TAP devices (owned by the invoking user, so
+`./cli.py start` never needs root) and a dedicated nftables table that
+isolates every VM. This module is the single source of truth for the
+pool parameters — the shell script (`scripts/firecracker-netpool.sh`),
+the printed NixOS snippet, and the backend's fail-closed preflight all
+derive from the constants here so they can't drift.
+
+Topology (per slot i):
+  * TAP  ``bbfc{i}``  — no shared bridge, so no docker0 / virbr0 / cni0
+    / br-* collisions.
+  * a /31 host<->guest link: host = base + 2i (the gateway the VM
+    routes through), guest = base + 2i + 1 (the VM's address).
+  * isolation via ``table inet bot_bottle_fc``: a VM reaches only its
+    own sidecar (DNAT'd from the host TAP IP) and nothing else.
+
+The default IP block is ``10.243.0.0/16`` — an intentionally obscure
+corner of RFC-1918 private space. RFC-1918 is the range *designated*
+for private links; we pick a high, unusual /16 to steer clear of the
+common occupants (Docker's 172.17-31, libvirt's 192.168.122, k8s
+10.42/10.244, and typical home LANs on 192.168.0/1.x or 10.0.0.x).
+We deliberately avoid ``100.64.0.0/10`` (RFC-6598 CGNAT) because
+Tailscale hands out node addresses from exactly that range. No default
+is collision-proof, so `overlapping_routes()` is the real guard —
+`backend setup`/`status` and the launch preflight call it to catch
+a base that clashes with something already on the host.
+"""
+
+from __future__ import annotations
+
+import fcntl
+import ipaddress
+import os
+import subprocess
+from dataclasses import dataclass
+from pathlib import Path
+from typing import IO
+
+from ...log import die
+
+
+# Interface names are capped at 15 chars (IFNAMSIZ-1); "bbfc" + a small
+# index stays well under that and is distinctive enough to grep for.
+IFACE_PREFIX = os.environ.get("BOT_BOTTLE_FC_IFACE_PREFIX", "bbfc")
+NFT_TABLE = "bot_bottle_fc"
+
+
+def pool_size() -> int:
+    return int(os.environ.get("BOT_BOTTLE_FC_POOL_SIZE", "8"))
+
+
+def ip_base() -> str:
+    return os.environ.get("BOT_BOTTLE_FC_IP_BASE", "10.243.0.0")
+
+
+# Sidecar ports the VM reaches at its host-side TAP IP. Kept in sync
+# with the backend constants (egress 9099, supervise 9100, git-http
+# 9420); rendered into the setup output for operator visibility.
+SIDECAR_PORTS = (9099, 9100, 9420)
+
+
+@dataclass(frozen=True)
+class Slot:
+    """One pool slot: a TAP device and its host/guest /31 addresses."""
+
+    index: int
+    iface: str
+    host_ip: str
+    guest_ip: str
+
+    @property
+    def guest_cidr(self) -> str:
+        """Guest address with the /31 prefix, for the kernel `ip=` arg."""
+        return f"{self.guest_ip}/31"
+
+
+def slot(index: int) -> Slot:
+    base = int(ipaddress.IPv4Address(ip_base()))
+    return Slot(
+        index=index,
+        iface=f"{IFACE_PREFIX}{index}",
+        host_ip=str(ipaddress.IPv4Address(base + 2 * index)),
+        guest_ip=str(ipaddress.IPv4Address(base + 2 * index + 1)),
+    )
+
+
+def all_slots() -> list[Slot]:
+    return [slot(i) for i in range(pool_size())]
+
+
+# --- fail-closed verification ---------------------------------------
+
+def _run_ok(argv: list[str]) -> bool:
+    """Run a probe command, treating a missing binary as failure
+    (rather than crashing) so callers can stay fail-closed."""
+    try:
+        return subprocess.run(
+            argv, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL,
+            check=False,
+        ).returncode == 0
+    except FileNotFoundError:
+        return False
+
+
+def nft_table_present() -> bool:
+    """True iff the isolation table exists in the active nftables
+    backend. The backend's preflight treats absence as fatal — the VM
+    must not boot without its egress boundary in place.
+
+    Listing may require root; when it can't be confirmed here the
+    launch path falls back to an empirical post-boot isolation probe.
+    Returns False (fail-closed) if `nft` is unavailable."""
+    return _run_ok(["nft", "list", "table", "inet", NFT_TABLE])
+
+
+def tap_present(iface: str) -> bool:
+    # `ip link show` is unprivileged, so the TAP-pool check is reliable
+    # for the non-root launcher.
+    return _run_ok(["ip", "link", "show", iface])
+
+
+def missing_taps() -> list[str]:
+    """Pool TAPs that the one-time setup has not created yet."""
+    return [s.iface for s in all_slots() if not tap_present(s.iface)]
+
+
+@dataclass(frozen=True)
+class RouteConflict:
+    """An existing host route whose destination overlaps the pool range
+    but isn't one of our own bbfc TAPs — i.e. the chosen IP base clashes
+    with something already on the host (a Tailscale CGNAT peer, a
+    docker/libvirt bridge, the LAN…)."""
+
+    dst: str
+    dev: str
+
+
+def _pool_span() -> tuple[int, int]:
+    """Inclusive [first, last] integer bounds of every address the pool
+    occupies: base .. base + 2*pool_size - 1."""
+    base = int(ipaddress.IPv4Address(ip_base()))
+    return base, base + 2 * pool_size() - 1
+
+
+def overlapping_routes() -> list[RouteConflict]:
+    """Existing routes whose destination overlaps the pool's address
+    range, excluding our own `bbfc*` TAP routes and the default route.
+
+    A non-empty result means `BOT_BOTTLE_FC_IP_BASE` collides with
+    something already configured on this host, so the pool would shadow
+    (or be shadowed by) it. Empty on success — or when `ip` is missing
+    or unparseable, since this is an advisory guard, not the fail-closed
+    isolation check (that's the nft table + post-boot probe)."""
+    import json
+
+    try:
+        proc = subprocess.run(
+            ["ip", "-json", "route", "show", "table", "all"],
+            capture_output=True, text=True, check=False,
+        )
+    except FileNotFoundError:
+        return []
+    if proc.returncode != 0 or not proc.stdout.strip():
+        return []
+    try:
+        routes = json.loads(proc.stdout)
+    except json.JSONDecodeError:
+        return []
+
+    lo, hi = _pool_span()
+    conflicts: list[RouteConflict] = []
+    for r in routes:
+        if not isinstance(r, dict):
+            continue
+        dst = r.get("dst")
+        dev = r.get("dev", "")
+        if not isinstance(dst, str) or dst in ("", "default"):
+            continue
+        if isinstance(dev, str) and dev.startswith(IFACE_PREFIX):
+            continue  # our own pool link
+        try:
+            net = ipaddress.ip_network(dst, strict=False)
+        except ValueError:
+            continue
+        if net.version != 4:
+            continue
+        r_lo = int(net.network_address)
+        r_hi = int(net.broadcast_address)
+        if r_lo <= hi and lo <= r_hi:  # ranges intersect
+            conflicts.append(RouteConflict(dst=dst, dev=str(dev)))
+    return conflicts
+
+
+# --- allocation ------------------------------------------------------
+
+def _lock_dir() -> Path:
+    d = Path.home() / ".cache" / "bot-bottle" / "firecracker" / "pool"
+    d.mkdir(parents=True, exist_ok=True)
+    return d
+
+
+def allocate(slug: str) -> tuple[Slot, IO[str]]:
+    """Claim a free pool slot for one bottle. Returns the slot and the
+    held lock file — the caller keeps it open for the VM's lifetime and
+    closes it on teardown; the flock auto-releases if the launcher
+    crashes, so a slot is never leaked. Dies when the pool is
+    exhausted.
+
+    A per-slot `flock` (rather than inspecting running processes) makes
+    allocation race-free across concurrent launches without a central
+    registry: the first launcher to grab the lock owns the slot."""
+    del slug  # logged by the caller; allocation is purely lock-driven
+    for s in all_slots():
+        lock_path = _lock_dir() / f"{s.iface}.lock"
+        handle = open(lock_path, "w", encoding="utf-8")
+        try:
+            fcntl.flock(handle, fcntl.LOCK_EX | fcntl.LOCK_NB)
+        except OSError:
+            handle.close()
+            continue
+        return s, handle
+    die(f"Firecracker TAP pool exhausted ({pool_size()} slots, all in "
+        f"use). Stop a running bottle or raise BOT_BOTTLE_FC_POOL_SIZE "
+        f"and re-run `./cli.py backend setup --backend=firecracker`.")
+    raise AssertionError("unreachable")
+
+
+# --- config renderers (shown by `./cli.py backend setup`) -----------
+
+def render_shell_setup() -> str:
+    """The imperative command for non-NixOS hosts."""
+    env = _nondefault_env()
+    prefix = f"{env} " if env else ""
+    return f"sudo {prefix}./scripts/firecracker-netpool.sh up"
+
+
+def render_nixos_module() -> str:
+    """A paste-ready NixOS snippet, derived from the live constants.
+
+    Uses systemd-networkd tap netdevs (so TAPs are only reconfigured
+    when this config changes, not torn down on every rebuild — which
+    would drop running VMs) and `networking.nftables.tables.<name>`
+    (an independent table that coexists with Docker's iptables rules
+    rather than replacing the whole ruleset)."""
+    slots = all_slots()
+    owner = os.environ.get("USER", "youruser")
+
+    netdevs = "\n".join(
+        f'''        "10-{s.iface}" = {{
+          netdevConfig = {{ Name = "{s.iface}"; Kind = "tap"; }};
+          tapConfig = {{ User = "{owner}"; }};
+        }};'''
+        for s in slots
+    )
+    networks = "\n".join(
+        f'''        "10-{s.iface}" = {{
+          matchConfig.Name = "{s.iface}";
+          address = [ "{s.host_ip}/31" ];
+          networkConfig.ConfigureWithoutCarrier = true;
+        }};'''
+        for s in slots
+    )
+
+    return f"""# bot-bottle Firecracker network pool ({len(slots)} slots, base {ip_base()}).
+# Generated by `./cli.py backend setup --backend=firecracker`; owner user = {owner!r}.
+{{ ... }}:
+{{
+  boot.kernel.sysctl."net.ipv4.ip_forward" = 1;
+
+  systemd.network.enable = true;
+  systemd.network.netdevs = {{
+{netdevs}
+  }};
+  systemd.network.networks = {{
+{networks}
+  }};
+
+  # Independent table — does not touch Docker/ufw/firewalld rules.
+  # A bottle VM (traffic from a bbfc* TAP) may reach only its own
+  # sidecar (DNAT'd from the host TAP IP); everything else is dropped,
+  # so there is no egress except through the sidecar proxy.
+  networking.nftables.enable = true;
+  networking.nftables.tables."{NFT_TABLE}" = {{
+    family = "inet";
+    content = ''
+      chain forward {{
+        type filter hook forward priority -10; policy accept;
+        iifname != "{IFACE_PREFIX}*" return
+        ct state established,related accept
+        ct status dnat accept
+        drop
+      }}
+      chain input {{
+        type filter hook input priority -10; policy accept;
+        iifname != "{IFACE_PREFIX}*" return
+        ct state established,related accept
+        drop
+      }}
+    '';
+  }};
+}}
+"""
+
+
+def _nondefault_env() -> str:
+    """Render any non-default pool env overrides so the printed shell
+    command reproduces the operator's current settings."""
+    pairs = []
+    if os.environ.get("BOT_BOTTLE_FC_POOL_SIZE"):
+        pairs.append(f"BOT_BOTTLE_FC_POOL_SIZE={pool_size()}")
+    if os.environ.get("BOT_BOTTLE_FC_IP_BASE"):
+        pairs.append(f"BOT_BOTTLE_FC_IP_BASE={ip_base()}")
+    if os.environ.get("BOT_BOTTLE_FC_IFACE_PREFIX"):
+        pairs.append(f"BOT_BOTTLE_FC_IFACE_PREFIX={IFACE_PREFIX}")
+    return " ".join(pairs)

bot_bottle/backend/firecracker/resolve_plan.py

@@ -0,0 +1,47 @@
+"""Prepare step for the Firecracker backend."""
+
+from __future__ import annotations
+
+from pathlib import Path
+
+from ...agent_provider import AgentProvisionPlan
+from ...egress import EgressPlan
+from ...env import ResolvedEnv
+from ...git_gate import GitGatePlan
+from ...manifest import Manifest
+from ...supervise import SupervisePlan
+from .. import BottleSpec
+from . import util
+from .bottle_plan import FirecrackerBottlePlan
+
+
+def preflight() -> None:
+    util.require_firecracker()
+
+
+def build_guest_env(resolved_env: ResolvedEnv) -> dict[str, str]:
+    return dict(resolved_env.literals)
+
+
+def resolve_plan(
+    spec: BottleSpec,
+    manifest: Manifest,
+    slug: str,
+    resolved_env: ResolvedEnv,
+    agent_provision_plan: AgentProvisionPlan,
+    egress_plan: EgressPlan,
+    supervise_plan: SupervisePlan | None,
+    git_gate_plan: GitGatePlan,
+    stage_dir: Path,
+) -> FirecrackerBottlePlan:
+    return FirecrackerBottlePlan(
+        spec=spec,
+        manifest=manifest,
+        stage_dir=stage_dir,
+        slug=slug,
+        forwarded_env=dict(resolved_env.forwarded),
+        git_gate_plan=git_gate_plan,
+        egress_plan=egress_plan,
+        supervise_plan=supervise_plan,
+        agent_provision=agent_provision_plan,
+    )

bot_bottle/backend/firecracker/setup.py

@@ -0,0 +1,165 @@
+"""Host setup + status for the Firecracker backend.
+
+`setup()` prints the host-appropriate config for the privileged,
+one-time network pool (TAP devices + isolation nftables table) the
+backend needs. On NixOS it points at the flake module (and prints a
+paste-able fallback); elsewhere it prints the sudo command for the
+bundled setup script. `status()` reports what's present, including
+whether the pool range collides with an existing route.
+
+Called through `FirecrackerBottleBackend.setup` / `.status`, which the
+generic `./cli.py backend {setup,status}` command dispatches to.
+"""
+
+from __future__ import annotations
+
+import os
+import shutil
+import sys
+from pathlib import Path
+
+from . import netpool
+from . import util
+
+
+_FC_RELEASES = "https://github.com/firecracker-microvm/firecracker/releases"
+
+
+def _owner() -> str:
+    return os.environ.get("USER", "youruser")
+
+
+def _print_prereqs() -> None:
+    """The firecracker binary + KVM + guest artifacts, shown before the
+    privileged network-pool step so operators see the full picture."""
+    fc = shutil.which("firecracker")
+    if fc:
+        sys.stderr.write(f"1) firecracker binary: found ({fc}).\n")
+    else:
+        sys.stderr.write(
+            "1) firecracker binary: NOT found on PATH. Install a release binary "
+            "and put it on PATH:\n"
+            f"     {_FC_RELEASES}\n"
+            "   e.g.: download firecracker-vX.Y.Z-$(uname -m).tgz, extract, and\n"
+            "     install -m755 release-*/firecracker-* ~/.local/bin/firecracker\n"
+            "   (NixOS: not packaged as a user binary — fetch the release, pin\n"
+            "    the version, and add it to PATH.)\n"
+        )
+    if util.is_host_capable():
+        sys.stderr.write("   KVM: /dev/kvm present.\n")
+    else:
+        sys.stderr.write(
+            "   KVM: /dev/kvm missing/unusable — load kvm-intel/kvm-amd, enable\n"
+            "   virtualization in firmware, and add your user to the `kvm` group.\n"
+        )
+    sys.stderr.write(
+        "   Guest artifacts: a kernel (BOT_BOTTLE_FC_KERNEL) and static dropbear\n"
+        "   (BOT_BOTTLE_FC_DROPBEAR) must be cached, and `mke2fs` (e2fsprogs) is\n"
+        "   needed to build the rootfs.\n\n"
+    )
+
+
+def _is_nixos() -> bool:
+    if Path("/etc/NIXOS").exists():
+        return True
+    try:
+        return "ID=nixos" in Path("/etc/os-release").read_text()
+    except OSError:
+        return False
+
+
+def _warn_overlaps() -> None:
+    """Warn if the chosen pool range collides with an existing host route
+    (Tailscale CGNAT peer, a docker/libvirt bridge, the LAN…)."""
+    conflicts = netpool.overlapping_routes()
+    if not conflicts:
+        return
+    detail = "\n".join(f"    {c.dst} dev {c.dev}" for c in conflicts)
+    sys.stderr.write(
+        f"WARNING: pool range (base {netpool.ip_base()}, "
+        f"{netpool.pool_size()} slots) overlaps existing routes:\n"
+        f"{detail}\n"
+        "Set BOT_BOTTLE_FC_IP_BASE to a free range before setup, or the "
+        "pool may shadow / be shadowed by the above.\n\n"
+    )
+
+
+def setup() -> int:
+    sys.stderr.write("Firecracker backend — one-time host setup.\n\n")
+    _print_prereqs()
+    slots = netpool.all_slots()
+    sys.stderr.write(
+        f"2) network pool: {len(slots)} slots "
+        f"({slots[0].iface}..{slots[-1].iface}), base {netpool.ip_base()} — "
+        f"TAP devices + nft isolation table, privileged (needs root once).\n\n"
+    )
+    _warn_overlaps()
+    if _is_nixos():
+        sys.stderr.write(
+            "Detected NixOS. Preferred: consume the flake module (versioned, "
+            "no copy-paste drift):\n\n"
+            "  # flake inputs (point at wherever you host bot-bottle):\n"
+            "  inputs.bot-bottle.url = \"git+ssh://<your-bot-bottle-remote>\";\n"
+            "  # host module:\n"
+            "  imports = [ inputs.bot-bottle.nixosModules.firecracker-netpool ];\n"
+            f"  services.bot-bottle-firecracker = {{ enable = true; owner = \"{_owner()}\"; }};\n\n"
+            "Then `nixos-rebuild switch`. Channel (non-flake) users can "
+            "`imports = [ <bot-bottle>/nix/firecracker-netpool.nix ];` instead.\n\n"
+            "Fallback — paste this generated module directly:\n\n"
+        )
+        sys.stdout.write(netpool.render_nixos_module())
+    else:
+        sys.stderr.write("Run the one-time setup as root:\n\n")
+        sys.stdout.write(netpool.render_shell_setup() + "\n")
+        sys.stderr.write(
+            "\n(On NixOS, use the declarative module instead — this host "
+            "was not detected as NixOS.)\n"
+        )
+    return 0
+
+
+def teardown() -> int:
+    slots = netpool.all_slots()
+    sys.stderr.write(
+        f"Undo the Firecracker network pool ({len(slots)} slots, base "
+        f"{netpool.ip_base()}) — a privileged, one-time operation.\n\n"
+    )
+    if _is_nixos():
+        sys.stderr.write(
+            "On NixOS: set `services.bot-bottle-firecracker.enable = false;` "
+            "(or drop the module import) and `nixos-rebuild switch`. The TAP "
+            "netdevs and nft table are removed declaratively.\n\n"
+            "To tear down imperatively before a rebuild (does not persist):\n\n"
+        )
+    else:
+        sys.stderr.write("Run the teardown as root:\n\n")
+    sys.stdout.write("sudo ./scripts/firecracker-netpool.sh down\n")
+    return 0
+
+
+def status() -> int:
+    ok = True
+    if netpool.nft_table_present():
+        sys.stderr.write(f"nft table inet {netpool.NFT_TABLE}: present\n")
+    else:
+        sys.stderr.write(f"nft table inet {netpool.NFT_TABLE}: MISSING\n")
+        ok = False
+    missing = netpool.missing_taps()
+    total = netpool.pool_size()
+    if missing:
+        sys.stderr.write(f"TAP pool: {total - len(missing)}/{total} present "
+                         f"(missing: {', '.join(missing)})\n")
+        ok = False
+    else:
+        sys.stderr.write(f"TAP pool: {total}/{total} present\n")
+    conflicts = netpool.overlapping_routes()
+    if conflicts:
+        detail = ", ".join(f"{c.dst} dev {c.dev}" for c in conflicts)
+        sys.stderr.write(f"range overlap: base {netpool.ip_base()} CLASHES "
+                         f"with {detail}\n")
+        ok = False
+    else:
+        sys.stderr.write(f"range overlap: none (base {netpool.ip_base()})\n")
+    if not ok:
+        sys.stderr.write("\nRun: ./cli.py backend setup --backend=firecracker\n")
+    return 0 if ok else 1

bot_bottle/backend/firecracker/util.py

@@ -0,0 +1,311 @@
+"""Host-side primitives for the Firecracker backend.
+
+Covers the pieces that don't need root at launch time: locating the
+firecracker binary / guest kernel / injected dropbear, the fail-closed
+preflight (KVM + kernel + isolation table + TAP pool must all be
+present before a VM boots), the rootless rootfs pipeline
+(`docker export` -> `mke2fs -d`, no mount), and per-bottle SSH key
+generation.
+
+The privileged network setup (TAP pool + nft table) is a one-time
+operator step — see `netpool.py`, `scripts/firecracker-netpool.sh`,
+and `./cli.py backend setup --backend=firecracker`.
+"""
+
+from __future__ import annotations
+
+import os
+import platform
+import shutil
+import subprocess
+from pathlib import Path
+
+from ...log import die, info, warn
+from . import netpool
+
+
+# Guest agent images are Debian-family with USER node; the VM is
+# reached over SSH as root (init drops the pubkey into both root's and
+# node's authorized_keys) and commands `runuser` down to node.
+GUEST_SSH_USER = "root"
+
+# `/dev/kvm` must exist and be openable by the invoking user.
+_KVM_DEVICE = "/dev/kvm"
+
+
+def cache_dir() -> Path:
+    d = Path(
+        os.environ.get(
+            "BOT_BOTTLE_FC_CACHE",
+            str(Path.home() / ".cache" / "bot-bottle" / "firecracker"),
+        )
+    )
+    d.mkdir(parents=True, exist_ok=True)
+    return d
+
+
+def kernel_path() -> Path:
+    return Path(os.environ.get("BOT_BOTTLE_FC_KERNEL", str(cache_dir() / "vmlinux")))
+
+
+def dropbear_path() -> Path:
+    """The static dropbear injected into every guest rootfs as its SSH
+    server. Must be statically linked — the guest has none of the
+    host's shared libraries."""
+    return Path(
+        os.environ.get("BOT_BOTTLE_FC_DROPBEAR", str(cache_dir() / "dropbear"))
+    )
+
+
+# --- availability + preflight ---------------------------------------
+
+def is_linux() -> bool:
+    return platform.system() == "Linux"
+
+
+def is_host_capable() -> bool:
+    """Whether this host *could* run firecracker — Linux with KVM —
+    regardless of whether the `firecracker` binary is installed. Used
+    for default-backend selection so a KVM Linux host that hasn't
+    installed firecracker yet still selects it and gets an install
+    pointer at launch (see `require_firecracker`), rather than silently
+    falling back to docker."""
+    return is_linux() and os.path.exists(_KVM_DEVICE)
+
+
+def is_available() -> bool:
+    """Cheap capability probe used by cross-backend enumeration —
+    firecracker on PATH, on Linux, with KVM. Does not check the
+    (operator-provisioned) kernel / pool, so an available-but-unset
+    host still shows up and gets an actionable error at launch."""
+    return is_host_capable() and shutil.which("firecracker") is not None
+
+
+def require_firecracker() -> None:
+    """Fail-closed preflight. Every check that gates the security
+    boundary (the isolation table, the TAP pool) errors rather than
+    booting a VM without it."""
+    if not is_linux():
+        die("firecracker backend is only supported on Linux (KVM). "
+            "On macOS use --backend=macos-container.")
+    if shutil.which("firecracker") is None:
+        info("Firecracker is required but was not found on PATH.")
+        info("Install: https://github.com/firecracker-microvm/firecracker/releases")
+        die("firecracker not found on PATH")
+    _require_kvm()
+    if not kernel_path().is_file():
+        die(f"guest kernel not found at {kernel_path()}. Set "
+            "BOT_BOTTLE_FC_KERNEL or place a vmlinux there.")
+    if not dropbear_path().is_file():
+        die(f"static dropbear not found at {dropbear_path()}. Set "
+            "BOT_BOTTLE_FC_DROPBEAR or cache one there.")
+    if shutil.which("mke2fs") is None:
+        die("mke2fs (e2fsprogs) not found — required to build guest rootfs")
+    _require_network_pool()
+
+
+def _require_kvm() -> None:
+    if not os.path.exists(_KVM_DEVICE):
+        die(f"{_KVM_DEVICE} is missing. Enable KVM (load kvm-intel/kvm-amd; "
+            "confirm virtualization is on in firmware).")
+    if not os.access(_KVM_DEVICE, os.R_OK | os.W_OK):
+        die(f"{_KVM_DEVICE} exists but is not accessible. Add your user to "
+            "the `kvm` group and re-login.")
+
+
+def _require_network_pool() -> None:
+    """Fail-closed on the parts we can check unprivileged; defer the
+    rest to the post-boot isolation probe.
+
+    The TAP pool is verified here (`ip link show` is unprivileged). The
+    nft table can only be *confirmed present* here when `nft` is
+    queryable — which usually needs root — so a missing/absent nft is
+    not treated as fatal at this stage: the authoritative check is the
+    empirical isolation probe run after boot, before the agent starts
+    (see isolation_probe.verify_isolation). What we must never do is
+    boot without the TAP pool."""
+    conflicts = netpool.overlapping_routes()
+    if conflicts:
+        detail = "; ".join(f"{c.dst} dev {c.dev}" for c in conflicts)
+        warn(f"Firecracker pool range ({netpool.ip_base()}, "
+             f"{netpool.pool_size()} slots) overlaps existing routes: "
+             f"{detail}. This can shadow or be shadowed by that route; "
+             f"set BOT_BOTTLE_FC_IP_BASE to a free range and re-run "
+             f"./cli.py backend setup --backend=firecracker.")
+    missing = netpool.missing_taps()
+    if missing:
+        die(f"network pool incomplete — missing TAP devices: "
+            f"{', '.join(missing)}.\n    ./cli.py backend setup --backend=firecracker")
+    if shutil.which("nft") is not None and not netpool.nft_table_present():
+        # nft is queryable and says the table is absent — that's a
+        # definite, catchable misconfiguration; fail early.
+        warn(f"isolation table `inet {netpool.NFT_TABLE}` not found via nft. "
+             "If this is a permissions issue it will be re-checked "
+             "empirically after boot; otherwise run: "
+             "./cli.py backend setup --backend=firecracker")
+
+
+# --- rootfs pipeline (rootless) -------------------------------------
+
+def docker_image_id(ref: str) -> str:
+    """The image's content digest, used as the rootfs cache key."""
+    result = subprocess.run(
+        ["docker", "image", "inspect", "--format", "{{.Id}}", ref],
+        capture_output=True, text=True, check=False,
+    )
+    if result.returncode != 0 or not result.stdout.strip():
+        die(f"docker image inspect for {ref!r} failed: "
+            f"{(result.stderr or '').strip() or '<no output>'}")
+    return result.stdout.strip().replace("sha256:", "")[:16]
+
+
+def build_base_rootfs_dir(image_ref: str) -> Path:
+    """Export the agent image's filesystem and inject the guest init +
+    static dropbear. Cached by image digest — the per-bottle bits
+    (authorized_keys, IP) are passed at boot via the kernel cmdline, so
+    this tree carries nothing bottle-specific and is safely shared.
+
+    Returns the prepared directory (read as the `mke2fs -d` source)."""
+    digest = docker_image_id(image_ref)
+    base = cache_dir() / "rootfs" / digest
+    ready = base / ".bb-ready"
+    if ready.is_file():
+        return base
+
+    if base.exists():
+        shutil.rmtree(base, ignore_errors=True)
+    base.mkdir(parents=True)
+
+    info(f"exporting {image_ref} rootfs -> {base}")
+    cid = subprocess.run(
+        ["docker", "create", image_ref, "sleep", "infinity"],
+        capture_output=True, text=True, check=False,
+    )
+    if cid.returncode != 0 or not cid.stdout.strip():
+        die(f"docker create {image_ref!r} failed: {cid.stderr.strip()}")
+    container = cid.stdout.strip()
+    try:
+        export = subprocess.Popen(
+            ["docker", "export", container], stdout=subprocess.PIPE,
+        )
+        untar = subprocess.run(
+            ["tar", "-x", "-C", str(base)], stdin=export.stdout, check=False,
+        )
+        export.wait()
+        if export.returncode != 0 or untar.returncode != 0:
+            die(f"exporting rootfs for {image_ref!r} failed")
+    finally:
+        subprocess.run(
+            ["docker", "rm", "-f", container],
+            stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL, check=False,
+        )
+
+    _inject_guest_boot(base)
+    ready.write_text("ok\n")
+    return base
+
+
+def _inject_guest_boot(rootfs: Path) -> None:
+    """Drop the static dropbear and the PID-1 init into the rootfs."""
+    shutil.copy2(dropbear_path(), rootfs / "bb-dropbear")
+    os.chmod(rootfs / "bb-dropbear", 0o755)
+    init = rootfs / "bb-init"
+    init.write_text(_GUEST_INIT)
+    os.chmod(init, 0o755)
+
+
+def build_rootfs_ext4(base_dir: Path, out_path: Path, *, slack_mib: int = 1024) -> None:
+    """Build a fresh, writable ext4 for one bottle from the cached base
+    dir. Rootless: `mke2fs -d` populates the image from a directory
+    without mounting. Each call produces an independent disk, so the
+    shared base dir stays untouched and concurrent bottles don't race."""
+    used_mib = _dir_size_mib(base_dir)
+    size_mib = used_mib + slack_mib
+    out_path.parent.mkdir(parents=True, exist_ok=True)
+    result = subprocess.run(
+        ["mke2fs", "-q", "-t", "ext4", "-d", str(base_dir), "-F",
+         str(out_path), f"{size_mib}M"],
+        capture_output=True, text=True, check=False,
+    )
+    if result.returncode != 0:
+        die(f"mke2fs for {out_path} failed: {result.stderr.strip()}")
+
+
+def _dir_size_mib(path: Path) -> int:
+    result = subprocess.run(
+        ["du", "-sm", str(path)], capture_output=True, text=True, check=False,
+    )
+    try:
+        return int(result.stdout.split()[0])
+    except (ValueError, IndexError):
+        return 2048
+
+
+# --- per-bottle SSH keys --------------------------------------------
+
+def generate_keypair(dest_dir: Path) -> tuple[Path, str]:
+    """Mint a per-bottle ed25519 keypair. Returns (private_key_path,
+    public_key_line). The public line is injected into the guest via
+    the boot cmdline; the private key authenticates host->guest SSH."""
+    dest_dir.mkdir(parents=True, exist_ok=True)
+    key = dest_dir / "bottle_id_ed25519"
+    if key.exists():
+        key.unlink()
+    (dest_dir / "bottle_id_ed25519.pub").unlink(missing_ok=True)
+    subprocess.run(
+        ["ssh-keygen", "-t", "ed25519", "-N", "", "-q", "-f", str(key),
+         "-C", "bot-bottle-firecracker"],
+        check=True,
+    )
+    pub = (dest_dir / "bottle_id_ed25519.pub").read_text().strip()
+    return key, pub
+
+
+def ssh_base_argv(private_key: Path, guest_ip: str) -> list[str]:
+    """Common SSH options for host->guest control. The VM is ephemeral
+    and per-bottle, so host-key TOFU is meaningless — pin no known_hosts
+    and skip the check rather than accumulate churn."""
+    return [
+        "ssh",
+        "-i", str(private_key),
+        "-o", "StrictHostKeyChecking=no",
+        "-o", "UserKnownHostsFile=/dev/null",
+        "-o", "LogLevel=ERROR",
+        "-o", "ConnectTimeout=5",
+        f"{GUEST_SSH_USER}@{guest_ip}",
+    ]
+
+
+# PID-1 init injected into every guest. Kept dependency-light: relies
+# only on coreutils + a POSIX shell (present in the Debian-family agent
+# images). The kernel `ip=` cmdline configures eth0 before init runs,
+# so no iproute2 is needed. The per-bottle SSH pubkey arrives base64 on
+# the cmdline; dropbear generates ephemeral host keys with -R.
+_GUEST_INIT = r"""#!/bin/sh
+# bot-bottle Firecracker guest init (PID 1).
+mount -t proc proc /proc 2>/dev/null
+mount -t sysfs sys /sys 2>/dev/null
+mount -t devtmpfs dev /dev 2>/dev/null
+mkdir -p /dev/pts && mount -t devpts devpts /dev/pts 2>/dev/null
+mount -o remount,rw / 2>/dev/null
+
+# Install the per-bottle SSH pubkey from the kernel cmdline.
+KEY=$(sed -n 's/.*bb_pubkey=\([^ ]*\).*/\1/p' /proc/cmdline | base64 -d 2>/dev/null)
+if [ -n "$KEY" ]; then
+    for home in /root /home/node; do
+        mkdir -p "$home/.ssh"
+        printf '%s\n' "$KEY" > "$home/.ssh/authorized_keys"
+        chmod 700 "$home/.ssh"
+        chmod 600 "$home/.ssh/authorized_keys"
+    done
+    chown -R node:node /home/node/.ssh 2>/dev/null || true
+fi
+
+mkdir -p /etc/dropbear /run
+# -R: generate host keys on demand. -E: log to stderr (guest console).
+/bb-dropbear -R -E -p 22 2>/dev/null &
+
+# Reap zombies as PID 1. dropbear is always a child, so `wait` blocks
+# rather than busy-looping.
+while : ; do wait ; done
+"""

bot_bottle/backend/freeze.py

@@ -0,0 +1,100 @@
+"""Freezer — snapshot a running bottle to a resumable artifact.
+
+Follows the same pattern as BottleBackend: a shared base class with
+common post-freeze steps (write committed-image path, mark preserved,
+print resume hint) and backend-specific subclasses in their respective
+backend directories.
+
+Entry points:
+  Freezer.commit(agent)      — freeze by ActiveAgent
+  Freezer.commit_slug(slug)  — convenience wrapper for cmd_commit
+  get_freezer(backend_name)  — factory
+"""
+
+from __future__ import annotations
+
+from abc import ABC, abstractmethod
+
+from . import ActiveAgent
+from ..bottle_state import mark_preserved, write_committed_image
+from ..log import die, info
+
+
+class CommitCancelled(Exception):
+    """Raised by Freezer._freeze when the user declines a confirmation prompt."""
+
+
+class Freezer(ABC):
+    """Freezes a running bottle to a resumable artifact.
+
+    The base class owns the shared post-commit steps:
+      - write_committed_image  — records the artifact path in per-bottle state
+      - mark_preserved         — prevents teardown from removing the state dir
+      - resume hint            — printed to stderr after the snapshot
+
+    Subclasses implement _freeze with the backend-specific snapshot
+    operation and optionally override _export_hint for migration hints.
+    """
+
+    backend_name: str
+
+    def commit(self, agent: ActiveAgent) -> None:
+        """Freeze the bottle for `agent` to a resumable artifact.
+
+        Calls _freeze for the backend-specific snapshot, then writes the
+        committed image reference to per-bottle state and marks the bottle
+        preserved so the next `./cli.py resume` boots from the snapshot.
+
+        Raises CommitCancelled if the user declines an interactive
+        confirmation prompt (e.g. the macos-container stop prompt).
+        """
+        image_ref = self._freeze(agent)
+        write_committed_image(agent.slug, image_ref)
+        mark_preserved(agent.slug)
+        info(f"to resume from this snapshot: ./cli.py resume {agent.slug}")
+        self._export_hint(agent.slug, image_ref)
+
+    @abstractmethod
+    def _freeze(self, agent: ActiveAgent) -> str:
+        """Backend-specific snapshot. Returns the image tag or artifact path
+        stored by write_committed_image. Raises CommitCancelled if the user
+        declines a stop-confirmation prompt."""
+
+    def _export_hint(self, slug: str, image_ref: str) -> None:
+        """Optionally print an export-for-migration hint after committing.
+        Overridden by backends that provide a meaningful export command."""
+
+    def commit_slug(self, slug: str) -> None:
+        """Convenience entry for cmd_commit when only a slug is available."""
+        from ..bottle_state import read_metadata
+        metadata = read_metadata(slug)
+        agent = ActiveAgent(
+            backend_name=self.backend_name,
+            slug=slug,
+            agent_name=metadata.agent_name if metadata else "",
+            started_at=metadata.started_at if metadata else "",
+            services=(),
+        )
+        self.commit(agent)
+
+
+def get_freezer(backend_name: str) -> Freezer:
+    """Return the Freezer for the named backend.
+
+    backend_name "" is treated as "docker" for backward compatibility
+    with state dirs written before the backend field was added."""
+    resolved = backend_name or "docker"
+    if resolved == "docker":
+        from .docker.freezer import DockerFreezer
+        return DockerFreezer()
+    if resolved == "macos-container":
+        from .macos_container.freezer import MacosContainerFreezer
+        return MacosContainerFreezer()
+    if resolved == "firecracker":
+        from .firecracker.freezer import FirecrackerFreezer
+        return FirecrackerFreezer()
+    die(
+        f"commit is only supported for docker, macos-container, and "
+        f"firecracker; backend {backend_name!r} has no freezer"
+    )
+    raise AssertionError("unreachable")

bot_bottle/backend/macos_container/__init__.py

@@ -0,0 +1,10 @@
+"""macOS Apple Container backend.
+
+Selectable via `BOT_BOTTLE_BACKEND=macos-container`. This package owns
+the Apple `container` CLI integration; launch remains gated until the
+sidecar network enforcement shape is implemented.
+"""
+
+from .backend import MacosContainerBottleBackend
+
+__all__ = ["MacosContainerBottleBackend"]

bot_bottle/backend/macos_container/backend.py

@@ -0,0 +1,102 @@
+"""MacosContainerBottleBackend — Apple Container implementation."""
+
+from __future__ import annotations
+
+from contextlib import contextmanager
+from pathlib import Path
+from typing import Generator, Sequence
+
+from ...agent_provider import AgentProvisionPlan
+from ...egress import EgressPlan
+from ...env import ResolvedEnv
+from ...git_gate import GitGatePlan
+from ...supervise import SupervisePlan
+from ...manifest import Manifest
+from .. import ActiveAgent, BottleBackend, BottleSpec
+from . import cleanup as _cleanup
+from . import enumerate as _enumerate
+from . import launch as _launch
+from . import resolve_plan as _resolve_plan
+from . import util as _container
+from .bottle import MacosContainerBottle
+from .bottle_cleanup_plan import MacosContainerBottleCleanupPlan
+from .bottle_plan import MacosContainerBottlePlan
+
+
+class MacosContainerBottleBackend(
+    BottleBackend["MacosContainerBottlePlan", "MacosContainerBottleCleanupPlan"]
+):
+    """Apple Container backend. Selected by
+    `BOT_BOTTLE_BACKEND=macos-container` or
+    `--backend=macos-container`."""
+
+    name = "macos-container"
+
+    @classmethod
+    def is_available(cls) -> bool:
+        return _container.is_available()
+
+    @classmethod
+    def setup(cls) -> int:
+        from . import setup as _setup
+        return _setup.setup()
+
+    @classmethod
+    def status(cls) -> int:
+        from . import setup as _setup
+        return _setup.status()
+
+    @classmethod
+    def teardown(cls) -> int:
+        from . import setup as _setup
+        return _setup.teardown()
+
+    def _preflight(self) -> None:
+        _resolve_plan.preflight()
+
+    def _build_guest_env(self, resolved_env: ResolvedEnv) -> dict[str, str]:
+        return _resolve_plan.build_guest_env(resolved_env)
+
+    def _resolve_plan(
+        self,
+        spec: BottleSpec,
+        *,
+        manifest: Manifest,
+        slug: str,
+        resolved_env: ResolvedEnv,
+        agent_provision_plan: AgentProvisionPlan,
+        egress_plan: EgressPlan,
+        git_gate_plan: GitGatePlan,
+        supervise_plan: SupervisePlan | None,
+        stage_dir: Path,
+    ) -> MacosContainerBottlePlan:
+        return _resolve_plan.resolve_plan(
+            spec,
+            manifest=manifest,
+            slug=slug,
+            resolved_env=resolved_env,
+            agent_provision_plan=agent_provision_plan,
+            egress_plan=egress_plan,
+            supervise_plan=supervise_plan,
+            git_gate_plan=git_gate_plan,
+            stage_dir=stage_dir,
+        )
+
+    @contextmanager
+    def launch(
+        self, plan: MacosContainerBottlePlan
+    ) -> Generator[MacosContainerBottle, None, None]:
+        with _launch.launch(plan, provision=self.provision) as bottle:
+            yield bottle
+
+    def prepare_cleanup(self) -> MacosContainerBottleCleanupPlan:
+        return _cleanup.prepare_cleanup()
+
+    def cleanup(self, plan: MacosContainerBottleCleanupPlan) -> None:
+        _cleanup.cleanup(plan)
+
+    def enumerate_active(self) -> Sequence[ActiveAgent]:
+        return _enumerate.enumerate_active()
+
+    def supervise_mcp_url(self, plan: MacosContainerBottlePlan) -> str:
+        return plan.agent_supervise_url

bot_bottle/backend/macos_container/bottle.py

@@ -0,0 +1,131 @@
+"""Bottle handle for Apple's `container` CLI."""
+
+from __future__ import annotations
+
+import os
+import subprocess
+import sys
+from typing import Callable, cast
+
+from ...agent_provider import PromptMode, prompt_args
+from .. import Bottle, ExecResult
+from ..terminal import exec_shell_script
+from . import pty_forward as _pty_forward
+
+
+_PTY_FORWARD_SCRIPT = _pty_forward.__file__
+_TERMINAL_ENV_NAMES = (
+    "TERM",
+    "COLORTERM",
+    "TERM_PROGRAM",
+    "TERM_PROGRAM_VERSION",
+    "KITTY_WINDOW_ID",
+    "KITTY_PID",
+    "WEZTERM_PANE",
+    "WEZTERM_UNIX_SOCKET",
+    "GHOSTTY_BIN_DIR",
+    "GHOSTTY_RESOURCES_DIR",
+    "ITERM_SESSION_ID",
+    "VTE_VERSION",
+    "KONSOLE_VERSION",
+    "ALACRITTY_WINDOW_ID",
+)
+
+
+def _terminal_env_names() -> tuple[str, ...]:
+    return tuple(
+        name for name in _TERMINAL_ENV_NAMES
+        if name == "TERM" or os.environ.get(name)
+    )
+
+
+class MacosContainerBottle(Bottle):
+    def __init__(
+        self,
+        container: str,
+        teardown: Callable[[], None],
+        prompt_path_in_container: str | None,
+        *,
+        agent_command: str = "claude",
+        agent_prompt_mode: PromptMode = "append_file",
+        agent_provider_template: str = "claude",
+        terminal_title: str = "",
+        terminal_color: str = "",
+        agent_workdir: str = "/home/node",
+    ):
+        self.name = container
+        self._teardown = teardown
+        self.prompt_path = prompt_path_in_container
+        self._agent_prompt_mode = agent_prompt_mode
+        self.agent_command = agent_command
+        self.terminal_title = terminal_title
+        self.terminal_color = terminal_color
+        self.agent_provider_template = agent_provider_template
+        self.agent_workdir = agent_workdir
+        self._closed = False
+
+    def agent_argv(self, argv: list[str], *, tty: bool = True) -> list[str]:
+        full_argv = list(argv)
+        full_argv.extend(
+            prompt_args(
+                cast(PromptMode, self._agent_prompt_mode),
+                self.prompt_path,
+                argv=full_argv,
+            )
+        )
+        container_exec = ["container", "exec"]
+        if tty:
+            container_exec.extend(["--interactive", "--tty"])
+            # Forward terminal capability hints so TUIs can enable modified-key
+            # protocols. Use bare env names: values stay in the child env, not
+            # on argv, and pty_forward supplies a TERM fallback when needed.
+            for name in _terminal_env_names():
+                container_exec.extend(["--env", name])
+        if self.agent_workdir and self.agent_workdir != "/home/node":
+            container_exec.extend(["--workdir", self.agent_workdir])
+        container_exec.extend([self.name, self.agent_command, *full_argv])
+        if tty:
+            # Wrap with the raw-mode forwarder: container exec does not put
+            # the host terminal into raw mode itself, so the line discipline
+            # buffers modifier-key sequences until CR.  The wrapper sets raw
+            # mode before exec and restores it on exit.
+            return [sys.executable, _PTY_FORWARD_SCRIPT, "--", *container_exec]
+        return container_exec
+
+    def exec_agent(self, argv: list[str], *, tty: bool = True) -> int:
+        agent_argv = self.agent_argv(argv, tty=tty)
+        script = (
+            exec_shell_script(agent_argv, self.terminal_title, self.terminal_color)
+            if tty else None
+        )
+        if script is None:
+            return subprocess.run(agent_argv, check=False).returncode
+        return subprocess.run(["sh", "-lc", script], check=False).returncode
+
+    def exec(self, script: str, *, user: str = "node") -> ExecResult:
+        result = subprocess.run(
+            ["container", "exec", "--user", user, "--interactive",
+             self.name, "sh", "-s"],
+            input=script,
+            capture_output=True,
+            text=True,
+            check=False,
+        )
+        return ExecResult(
+            returncode=result.returncode,
+            stdout=result.stdout,
+            stderr=result.stderr,
+        )
+
+    def cp_in(self, host_path: str, container_path: str) -> None:
+        subprocess.run(
+            ["container", "cp", host_path, f"{self.name}:{container_path}"],
+            stdout=subprocess.DEVNULL,
+            check=True,
+        )
+
+    def close(self) -> None:
+        if self._closed:
+            return
+        self._closed = True
+        self._teardown()

bot_bottle/backend/macos_container/bottle_cleanup_plan.py

@@ -0,0 +1,27 @@
+"""Cleanup plan for the macOS Apple Container backend."""
+
+from __future__ import annotations
+
+from dataclasses import dataclass
+
+from ...log import info
+from .. import BottleCleanupPlan
+
+
+@dataclass(frozen=True)
+class MacosContainerBottleCleanupPlan(BottleCleanupPlan):
+    containers: tuple[str, ...] = ()
+    networks: tuple[str, ...] = ()
+
+    def print(self) -> None:
+        if not self.containers and not self.networks:
+            info("macos-container cleanup: nothing to remove")
+            return
+        for name in self.containers:
+            info(f"macos-container container: {name}")
+        for name in self.networks:
+            info(f"macos-container network: {name}")
+
+    @property
+    def empty(self) -> bool:
+        return not self.containers and not self.networks

bot_bottle/backend/macos_container/bottle_plan.py

@@ -0,0 +1,58 @@
+"""Plan type for the macOS Apple Container backend."""
+
+from __future__ import annotations
+
+from dataclasses import dataclass, field
+from pathlib import Path
+
+from ...agent_provider import PromptMode
+from .. import BottlePlan
+
+
+@dataclass(frozen=True)
+class MacosContainerBottlePlan(BottlePlan):
+    slug: str
+    forwarded_env: dict[str, str] = field(repr=False)
+    agent_proxy_url: str = ""
+    agent_git_gate_url: str = ""
+    agent_supervise_url: str = ""
+
+    @property
+    def container_name(self) -> str:
+        return self.agent_provision.instance_name
+
+    @property
+    def image(self) -> str:
+        return self.agent_provision.image
+
+    @property
+    def dockerfile_path(self) -> str:
+        return self.agent_provision.dockerfile
+
+    @property
+    def prompt_file(self) -> Path:
+        return self.agent_provision.prompt_file
+
+    @property
+    def agent_command(self) -> str:
+        return self.agent_provision.command
+
+    @property
+    def agent_prompt_mode(self) -> PromptMode:
+        return self.agent_provision.prompt_mode
+
+    @property
+    def agent_provider_template(self) -> str:
+        return self.agent_provision.template
+
+    @property
+    def git_gate_insteadof_host(self) -> str:
+        if self.agent_git_gate_url.startswith("http://"):
+            return self.agent_git_gate_url.removeprefix("http://").rstrip("/")
+        return super().git_gate_insteadof_host
+
+    @property
+    def git_gate_insteadof_scheme(self) -> str:
+        if self.agent_git_gate_url.startswith("http://"):
+            return "http"
+        return super().git_gate_insteadof_scheme

bot_bottle/backend/macos_container/cleanup.py

@@ -0,0 +1,70 @@
+"""Cleanup for the macOS Apple Container backend."""
+
+from __future__ import annotations
+
+import subprocess
+
+from ...log import info, warn
+from . import util as container_mod
+from .bottle_cleanup_plan import MacosContainerBottleCleanupPlan
+
+_PREFIX = "bot-bottle-"
+_BUNDLE_PREFIX = "bot-bottle-sidecars-"
+
+
+def _list_prefixed_containers() -> list[str]:
+    result = subprocess.run(
+        ["container", "list", "--all", "--quiet"],
+        capture_output=True,
+        text=True,
+        check=False,
+    )
+    if result.returncode != 0:
+        warn(f"container list failed: {result.stderr.strip()}")
+        return []
+    return sorted(
+        name for name in (line.strip() for line in result.stdout.splitlines())
+        if name.startswith(_PREFIX) or name.startswith(_BUNDLE_PREFIX)
+    )
+
+
+def _list_prefixed_networks() -> list[str]:
+    result = subprocess.run(
+        ["container", "network", "list", "--quiet"],
+        capture_output=True,
+        text=True,
+        check=False,
+    )
+    if result.returncode != 0:
+        return []
+    return sorted(
+        name for name in (line.strip() for line in result.stdout.splitlines())
+        if name.startswith(_PREFIX)
+    )
+
+
+def prepare_cleanup() -> MacosContainerBottleCleanupPlan:
+    container_mod.require_container()
+    return MacosContainerBottleCleanupPlan(
+        containers=tuple(_list_prefixed_containers()),
+        networks=tuple(_list_prefixed_networks()),
+    )
+
+
+def cleanup(plan: MacosContainerBottleCleanupPlan) -> None:
+    for name in plan.containers:
+        info(f"container delete --force {name}")
+        subprocess.run(
+            ["container", "delete", "--force", name],
+            stdout=subprocess.DEVNULL,
+            stderr=subprocess.DEVNULL,
+            check=False,
+        )
+    for name in plan.networks:
+        info(f"container network delete {name}")
+        subprocess.run(
+            ["container", "network", "delete", name],
+            stdout=subprocess.DEVNULL,
+            stderr=subprocess.DEVNULL,
+            check=False,
+        )

bot_bottle/backend/macos_container/egress_apply.py

@@ -0,0 +1,39 @@
+"""Host-side egress apply for the macos-container backend.
+
+Uses `container kill --signal HUP` (Apple Container framework) instead
+of `docker kill` to signal the sidecar bundle.
+"""
+
+from __future__ import annotations
+
+import os
+import subprocess
+
+from ...log import warn
+from ..egress_apply import EgressApplicator, EgressApplyError
+from .launch import sidecar_container_name
+
+
+class MacOSContainerEgressApplicator(EgressApplicator):
+    def _signal_bundle_reload(self, slug: str) -> None:
+        container = sidecar_container_name(slug)
+        result = subprocess.run(
+            ["container", "kill", "--signal", "HUP", container],
+            capture_output=True, text=True, check=False, env=os.environ,
+        )
+        if result.returncode != 0:
+            last_error = (result.stderr or "").strip() or (result.stdout or "").strip()
+            warn(
+                f"egress: routes updated on disk for {slug}, but bundle reload failed: "
+                f"{last_error or 'container kill failed'}"
+            )
+            raise EgressApplyError(
+                f"could not reload egress bundle {container}: "
+                f"{last_error or 'container kill failed'}"
+            )
+
+
+applicator = MacOSContainerEgressApplicator()
+
+
+__all__ = ["MacOSContainerEgressApplicator", "EgressApplyError", "applicator"]

bot_bottle/backend/macos_container/enumerate.py

@@ -0,0 +1,40 @@
+"""Active-agent enumeration for the macOS Apple Container backend."""
+
+from __future__ import annotations
+
+import subprocess
+
+from ...bottle_state import read_metadata
+from .. import ActiveAgent
+
+_PREFIX = "bot-bottle-"
+_SIDECAR_PREFIX = "bot-bottle-sidecars-"
+
+
+def enumerate_active() -> list[ActiveAgent]:
+    result = subprocess.run(
+        ["container", "list", "--quiet"],
+        capture_output=True,
+        text=True,
+        check=False,
+    )
+    if result.returncode != 0:
+        return []
+    out: list[ActiveAgent] = []
+    for name in sorted(line.strip() for line in result.stdout.splitlines()):
+        if not name.startswith(_PREFIX):
+            continue
+        if name.startswith(_SIDECAR_PREFIX):
+            continue
+        slug = name[len(_PREFIX):]
+        metadata = read_metadata(slug)
+        out.append(ActiveAgent(
+            backend_name="macos-container",
+            slug=slug,
+            agent_name=metadata.agent_name if metadata else "?",
+            started_at=metadata.started_at if metadata else "",
+            services=(),
+            label=metadata.label if metadata else "",
+            color=metadata.color if metadata else "",
+        ))
+    return out

bot_bottle/backend/macos_container/freezer.py

@@ -0,0 +1,31 @@
+"""MacosContainerFreezer — snapshot a macOS container bottle.
+
+Apple Container removes containers when they stop, making stop-then-export
+impossible. Instead, commit_container execs into the running container and
+streams the root filesystem via tar. The bottle continues running after commit.
+"""
+
+from __future__ import annotations
+
+from .. import ActiveAgent
+from ..freeze import Freezer
+from .util import commit_container
+from ...log import info
+
+
+class MacosContainerFreezer(Freezer):
+    """Freezes a macOS-container bottle via exec-tar + image rebuild."""
+
+    backend_name = "macos-container"
+
+    def _freeze(self, agent: ActiveAgent) -> str:
+        container = f"bot-bottle-{agent.slug}"
+        image_tag = f"bot-bottle-committed-{agent.slug}:latest"
+        commit_container(container, image_tag)
+        return image_tag
+
+    def _export_hint(self, slug: str, image_ref: str) -> None:
+        info(
+            f"to export for migration:      "
+            f"container image save {image_ref} -o {slug}.tar"
+        )

bot_bottle/backend/macos_container/launch.py

@@ -0,0 +1,458 @@
+"""Launch flow for the macOS Apple Container backend.
+
+This backend keeps the explicit proxy-env enforcement model for v1:
+the agent container is attached only to a host-only Apple Container
+network, while the sidecar bundle is attached to a NAT network first
+and the host-only network second. The sidecar's host-only IP is
+discovered from `container inspect` and stamped into the agent's
+HTTP_PROXY / HTTPS_PROXY env vars.
+"""
+
+from __future__ import annotations
+
+import dataclasses
+import os
+import subprocess
+from contextlib import ExitStack, contextmanager
+from pathlib import Path
+from typing import Callable, Generator
+
+from ...bottle_state import (
+    egress_state_dir,
+    git_gate_state_dir,
+    read_committed_image,
+)
+from ...egress import (
+    EGRESS_ROUTES_IN_CONTAINER,
+    egress_agent_env_entries,
+    egress_resolve_token_values,
+    egress_sidecar_env_entries,
+)
+from ...git_gate import (
+    provision_git_gate_dynamic_keys,
+    revoke_git_gate_provisioned_keys,
+)
+from ...log import die, info, warn
+from ...supervise import DB_PATH_IN_CONTAINER, SUPERVISE_PORT
+from ...util import expand_tilde
+from ..docker.egress import EGRESS_CA_IN_CONTAINER, EGRESS_PORT
+from ..docker.git_gate import (
+    GIT_GATE_ACCESS_HOOK_IN_CONTAINER,
+    GIT_GATE_CREDS_DIR_IN_CONTAINER,
+    GIT_GATE_ENTRYPOINT_IN_CONTAINER,
+    GIT_GATE_HOOK_IN_CONTAINER,
+)
+from ..docker.sidecar_bundle import (
+    SIDECAR_BUNDLE_DOCKERFILE,
+    SIDECAR_BUNDLE_IMAGE,
+)
+from ..docker.egress import egress_tls_init
+from ..util import AGENT_CA_BUNDLE, AGENT_CA_PATH
+from . import util as container_mod
+from .bottle import MacosContainerBottle
+from .bottle_plan import MacosContainerBottlePlan
+
+
+_REPO_DIR = str(Path(__file__).resolve().parent.parent.parent.parent)
+_AGENT_SLEEP_SECONDS = "2147483647"
+_GIT_HTTP_PORT = 9420
+_GIT_GATE_READY_FILE = "/run/git-gate/ready"
+
+
+def internal_network_name(slug: str) -> str:
+    return f"bot-bottle-net-{slug}"
+
+
+def egress_network_name(slug: str) -> str:
+    return f"bot-bottle-egress-{slug}"
+
+
+def sidecar_container_name(slug: str) -> str:
+    return f"bot-bottle-sidecars-{slug}"
+
+
+@contextmanager
+def launch(
+    plan: MacosContainerBottlePlan,
+    *,
+    provision: Callable[[MacosContainerBottlePlan, "MacosContainerBottle"], str | None],
+) -> Generator[MacosContainerBottle, None, None]:
+    """Build, run, provision, and yield an Apple Container bottle."""
+    stack = ExitStack()
+    bottle_for_revoke = plan.manifest.bottle
+    git_gate_dir_for_revoke = git_gate_state_dir(plan.slug)
+
+    def teardown() -> None:
+        teardown_exc: BaseException | None = None
+        try:
+            stack.close()
+        except BaseException as exc:  # noqa: W0718 - teardown must continue
+            teardown_exc = exc
+            warn(f"macos-container teardown failed: {exc!r}")
+        revoke_git_gate_provisioned_keys(bottle_for_revoke, git_gate_dir_for_revoke)
+        if teardown_exc is not None:
+            raise teardown_exc
+
+    try:
+        plan = _mint_certs(plan)
+        plan = _build_images(plan)
+
+        internal_network = internal_network_name(plan.slug)
+        egress_network = egress_network_name(plan.slug)
+        _create_networks(internal_network, egress_network, stack)
+
+        plan = _provision_git_gate_keys(plan)
+
+        sidecar_name = sidecar_container_name(plan.slug)
+        container_mod.force_remove_container(sidecar_name)
+        _start_sidecar_bundle(plan, sidecar_name, internal_network, egress_network)
+        stack.callback(container_mod.force_remove_container, sidecar_name)
+        _stage_git_gate(plan, sidecar_name)
+
+        sidecar_ip = container_mod.container_ipv4_on_network(
+            sidecar_name, internal_network,
+        )
+        plan = _stamp_agent_urls(plan, sidecar_ip)
+
+        container_mod.force_remove_container(plan.container_name)
+        _start_agent(plan, internal_network, sidecar_ip)
+        stack.callback(container_mod.force_remove_container, plan.container_name)
+
+        bottle = MacosContainerBottle(
+            plan.container_name,
+            teardown,
+            None,
+            agent_command=plan.agent_command,
+            agent_prompt_mode=plan.agent_prompt_mode,
+            agent_provider_template=plan.agent_provider_template,
+            terminal_title=f"{plan.spec.label} ({plan.spec.agent_name})" if plan.spec.label else plan.spec.agent_name,
+            terminal_color=plan.spec.color,
+            agent_workdir=plan.workspace_plan.workdir,
+        )
+        bottle.prompt_path = provision(plan, bottle)
+
+        yield bottle
+    finally:
+        teardown()
+
+
+def _mint_certs(plan: MacosContainerBottlePlan) -> MacosContainerBottlePlan:
+    egress_ca_host, egress_ca_cert_only = egress_tls_init(
+        egress_state_dir(plan.slug),
+    )
+    egress_plan = dataclasses.replace(
+        plan.egress_plan,
+        mitmproxy_ca_host_path=egress_ca_host,
+        mitmproxy_ca_cert_only_host_path=egress_ca_cert_only,
+    )
+    return dataclasses.replace(plan, egress_plan=egress_plan)
+
+
+def _build_images(plan: MacosContainerBottlePlan) -> MacosContainerBottlePlan:
+    container_mod.build_image(
+        SIDECAR_BUNDLE_IMAGE,
+        _REPO_DIR,
+        dockerfile=SIDECAR_BUNDLE_DOCKERFILE,
+    )
+    committed = read_committed_image(plan.slug)
+    if committed and container_mod.image_exists(committed):
+        info(f"using committed image {committed!r}")
+        return dataclasses.replace(
+            plan,
+            agent_provision=dataclasses.replace(
+                plan.agent_provision,
+                image=committed,
+            ),
+        )
+    container_mod.build_image(
+        plan.image,
+        _REPO_DIR,
+        dockerfile=plan.dockerfile_path,
+    )
+    return plan
+
+
+def _create_networks(
+    internal_network: str,
+    egress_network: str,
+    stack: ExitStack,
+) -> None:
+    container_mod.create_network(internal_network, internal=True)
+    stack.callback(container_mod.remove_network, internal_network)
+    container_mod.create_network(egress_network)
+    stack.callback(container_mod.remove_network, egress_network)
+
+
+def _start_sidecar_bundle(
+    plan: MacosContainerBottlePlan,
+    sidecar_name: str,
+    internal_network: str,
+    egress_network: str,
+) -> None:
+    argv = _sidecar_run_argv(plan, sidecar_name, internal_network, egress_network)
+    effective_env = {**dict(os.environ), **plan.agent_provision.provisioned_env}
+    token_values = egress_resolve_token_values(
+        plan.egress_plan.token_env_map, effective_env,
+    )
+    env = {**os.environ, **token_values}
+    info(f"container run sidecar bundle {sidecar_name}")
+    result = subprocess.run(
+        argv, capture_output=True, text=True, env=env, check=False,
+    )
+    if result.returncode != 0:
+        die(
+            f"container run for sidecar bundle {sidecar_name} failed: "
+            f"{(result.stderr or '').strip() or '<no stderr>'}"
+        )
+
+
+def _start_agent(
+    plan: MacosContainerBottlePlan,
+    internal_network: str,
+    sidecar_ip: str,
+) -> None:
+    argv = _agent_run_argv(plan, internal_network, sidecar_ip)
+    env = {
+        **os.environ,
+        **plan.forwarded_env,
+    }
+    info(f"container run agent {plan.container_name}")
+    result = subprocess.run(
+        argv, capture_output=True, text=True, env=env, check=False,
+    )
+    if result.returncode != 0:
+        die(
+            f"container run for agent {plan.container_name} failed: "
+            f"{(result.stderr or '').strip() or '<no stderr>'}"
+        )
+
+
+def _stamp_agent_urls(
+    plan: MacosContainerBottlePlan,
+    sidecar_ip: str,
+) -> MacosContainerBottlePlan:
+    proxy_url = f"http://{sidecar_ip}:{EGRESS_PORT}"
+    supervise_url = ""
+    if plan.supervise_plan is not None:
+        supervise_url = f"http://{sidecar_ip}:{SUPERVISE_PORT}/"
+    git_gate_url = ""
+    if plan.git_gate_plan.upstreams:
+        git_gate_url = f"http://{sidecar_ip}:{_GIT_HTTP_PORT}"
+    return dataclasses.replace(
+        plan,
+        agent_proxy_url=proxy_url,
+        agent_git_gate_url=git_gate_url,
+        agent_supervise_url=supervise_url,
+    )
+
+
+def _provision_git_gate_keys(
+    plan: MacosContainerBottlePlan,
+) -> MacosContainerBottlePlan:
+    if not plan.git_gate_plan.upstreams:
+        return plan
+    git_gate_plan = provision_git_gate_dynamic_keys(
+        plan.manifest.bottle,
+        plan.git_gate_plan,
+        git_gate_state_dir(plan.slug),
+    )
+    return dataclasses.replace(plan, git_gate_plan=git_gate_plan)
+
+
+def _stage_git_gate(plan: MacosContainerBottlePlan, sidecar_name: str) -> None:
+    gp = plan.git_gate_plan
+    if not gp.upstreams:
+        return
+
+    container_mod.exec_container(
+        sidecar_name,
+        [
+            "mkdir",
+            "-p",
+            str(Path(GIT_GATE_HOOK_IN_CONTAINER).parent),
+            GIT_GATE_CREDS_DIR_IN_CONTAINER,
+            "/git",
+            str(Path(_GIT_GATE_READY_FILE).parent),
+        ],
+    )
+
+    for host_path, container_path in _git_gate_files(plan):
+        container_mod.copy_into_container(
+            sidecar_name, host_path, container_path,
+        )
+
+    container_mod.exec_container(
+        sidecar_name,
+        [
+            "sh",
+            "-c",
+            "chmod 755 "
+            f"{GIT_GATE_ENTRYPOINT_IN_CONTAINER} "
+            f"{GIT_GATE_HOOK_IN_CONTAINER} "
+            f"{GIT_GATE_ACCESS_HOOK_IN_CONTAINER} && "
+            f"chmod 600 {GIT_GATE_CREDS_DIR_IN_CONTAINER}/* && "
+            f"touch {_GIT_GATE_READY_FILE}",
+        ],
+    )
+
+
+def _git_gate_files(
+    plan: MacosContainerBottlePlan,
+) -> tuple[tuple[str, str], ...]:
+    gp = plan.git_gate_plan
+    files: list[tuple[str, str]] = [
+        (str(gp.entrypoint_script), GIT_GATE_ENTRYPOINT_IN_CONTAINER),
+        (str(gp.hook_script), GIT_GATE_HOOK_IN_CONTAINER),
+        (str(gp.access_hook_script), GIT_GATE_ACCESS_HOOK_IN_CONTAINER),
+    ]
+    for upstream in gp.upstreams:
+        files.append((
+            expand_tilde(upstream.identity_file),
+            f"{GIT_GATE_CREDS_DIR_IN_CONTAINER}/{upstream.name}-key",
+        ))
+        if upstream.known_hosts_file:
+            files.append((
+                str(upstream.known_hosts_file),
+                f"{GIT_GATE_CREDS_DIR_IN_CONTAINER}/{upstream.name}-known_hosts",
+            ))
+    return tuple(files)
+
+
+def _sidecar_run_argv(
+    plan: MacosContainerBottlePlan,
+    sidecar_name: str,
+    internal_network: str,
+    egress_network: str,
+) -> list[str]:
+    argv = [
+        "container", "run",
+        "--name", sidecar_name,
+        "--detach",
+        "--rm",
+        "--network", egress_network,
+        "--network", internal_network,
+        "--dns", _sidecar_dns(),
+        "--env", f"BOT_BOTTLE_SIDECAR_DAEMONS={','.join(_sidecar_daemons(plan))}",
+    ]
+    for entry in _sidecar_env_entries(plan):
+        argv += ["--env", entry]
+    for host_path, container_path, read_only in _sidecar_mounts(plan):
+        argv += ["--mount", _mount_spec(host_path, container_path, read_only)]
+    argv.append(SIDECAR_BUNDLE_IMAGE)
+    return argv
+
+
+def _agent_run_argv(
+    plan: MacosContainerBottlePlan,
+    internal_network: str,
+    sidecar_ip: str,
+) -> list[str]:
+    argv = [
+        "container", "run",
+        "--name", plan.container_name,
+        "--detach",
+        "--network", internal_network,
+    ]
+    for entry in _agent_env_entries(plan, sidecar_ip):
+        argv += ["--env", entry]
+    argv += [plan.image, "sleep", _AGENT_SLEEP_SECONDS]
+    return argv
+
+
+def _sidecar_dns() -> str:
+    return container_mod.dns_server()
+
+
+def _sidecar_daemons(plan: MacosContainerBottlePlan) -> tuple[str, ...]:
+    daemons = ["egress"]
+    if plan.git_gate_plan.upstreams:
+        daemons += ["git-gate", "git-http"]
+    if plan.supervise_plan is not None:
+        daemons.append("supervise")
+    return tuple(daemons)
+
+
+def _sidecar_env_entries(plan: MacosContainerBottlePlan) -> tuple[str, ...]:
+    env: list[str] = list(egress_sidecar_env_entries(plan.egress_plan))
+    if plan.git_gate_plan.upstreams:
+        env.append(f"BOT_BOTTLE_GIT_GATE_READY_FILE={_GIT_GATE_READY_FILE}")
+    if plan.supervise_plan is not None:
+        env += [
+            f"SUPERVISE_BOTTLE_SLUG={plan.slug}",
+            f"SUPERVISE_DB_PATH={DB_PATH_IN_CONTAINER}",
+            f"SUPERVISE_PORT={SUPERVISE_PORT}",
+        ]
+    return tuple(env)
+
+
+def _sidecar_mounts(
+    plan: MacosContainerBottlePlan,
+) -> tuple[tuple[str, str, bool], ...]:
+    mounts: list[tuple[str, str, bool]] = []
+
+    ep = plan.egress_plan
+    mounts.append((
+        str(ep.mitmproxy_ca_host_path.parent),
+        str(Path(EGRESS_CA_IN_CONTAINER).parent),
+        False,
+    ))
+    if ep.routes:
+        mounts.append((
+            str(ep.routes_path.parent),
+            str(Path(EGRESS_ROUTES_IN_CONTAINER).parent),
+            True,
+        ))
+
+    sp = plan.supervise_plan
+    if sp is not None:
+        # `container run --mount type=bind` only accepts directory
+        # sources (a file source fails with "is not a directory") —
+        # mount db_path's dedicated parent dir instead of the file
+        # itself, same as the CA/routes mounts above.
+        mounts.append((
+            str(sp.db_path.parent),
+            str(Path(DB_PATH_IN_CONTAINER).parent),
+            False,
+        ))
+
+    return tuple(mounts)
+
+def _mount_spec(host_path: str, container_path: str, read_only: bool) -> str:
+    spec = f"type=bind,source={host_path},target={container_path}"
+    if read_only:
+        spec += ",readonly"
+    return spec
+
+
+def _agent_env_entries(
+    plan: MacosContainerBottlePlan,
+    sidecar_ip: str,
+) -> tuple[str, ...]:
+    proxy_url = f"http://{sidecar_ip}:{EGRESS_PORT}"
+    no_proxy = _agent_no_proxy(plan, sidecar_ip)
+    env = [
+        f"HTTPS_PROXY={proxy_url}",
+        f"HTTP_PROXY={proxy_url}",
+        f"https_proxy={proxy_url}",
+        f"http_proxy={proxy_url}",
+        f"NO_PROXY={no_proxy}",
+        f"no_proxy={no_proxy}",
+        f"NODE_EXTRA_CA_CERTS={AGENT_CA_PATH}",
+        f"SSL_CERT_FILE={AGENT_CA_BUNDLE}",
+        f"REQUESTS_CA_BUNDLE={AGENT_CA_BUNDLE}",
+    ]
+    if plan.agent_git_gate_url:
+        env.append(f"GIT_GATE_URL={plan.agent_git_gate_url}")
+    if plan.agent_supervise_url:
+        env.append(f"MCP_SUPERVISE_URL={plan.agent_supervise_url}")
+    for name, value in sorted(plan.agent_provision.guest_env.items()):
+        env.append(f"{name}={value}")
+    for name in sorted(plan.forwarded_env.keys()):
+        env.append(name)
+    env.extend(egress_agent_env_entries(plan.egress_plan))
+    return tuple(env)
+
+
+def _agent_no_proxy(plan: MacosContainerBottlePlan, sidecar_ip: str) -> str:
+    hosts = ["localhost", "127.0.0.1", sidecar_ip]
+    return ",".join(hosts)

bot_bottle/backend/macos_container/pty_forward.py

@@ -0,0 +1,70 @@
+"""Host-side raw-mode wrapper for `container exec --interactive --tty`.
+
+Apple's `container exec --interactive --tty` does not set the host terminal to
+raw mode before starting its I/O relay.  Without raw mode the kernel line
+discipline buffers modifier-key escape sequences (e.g. Shift+Enter in
+modifyOtherKeys mode produces \\x1b[13;2~) until a carriage-return arrives, so
+they never reach Claude Code inside the container.
+
+This module sets the host terminal to raw mode, spawns the inner argv (the
+container exec command), and restores the original terminal attributes on
+exit.  When stdin is not a TTY (piped invocations, CI) it falls through to a
+bare subprocess.run so callers do not need to special-case non-interactive
+contexts.
+
+Usage (the `--` separator is the API contract — everything after it is the
+inner command):
+
+    python pty_forward.py -- container exec --interactive --tty <name> <cmd>
+"""
+
+from __future__ import annotations
+
+import os
+import subprocess
+import sys
+import termios
+import tty
+
+
+def _inner_env() -> dict[str, str]:
+    env = dict(os.environ)
+    env.setdefault("TERM", "xterm-256color")
+    return env
+
+
+def _run_inner(inner: list[str]) -> int:
+    return subprocess.run(inner, check=False, env=_inner_env()).returncode
+
+
+def main(argv: list[str]) -> int:
+    """Entry point.  ``argv`` shape: ``-- <inner-argv...>``."""
+    if len(argv) < 2 or argv[0] != "--":
+        sys.stderr.write(
+            "usage: python pty_forward.py -- <container-exec-argv...>\n"
+        )
+        return 2
+    inner = argv[1:]
+
+    try:
+        fd = sys.stdin.fileno()
+    except OSError:
+        return _run_inner(inner)
+
+    if not os.isatty(fd):
+        return _run_inner(inner)
+
+    try:
+        old = termios.tcgetattr(fd)
+    except termios.error:
+        return _run_inner(inner)
+
+    try:
+        tty.setraw(fd)
+        return _run_inner(inner)
+    finally:
+        termios.tcsetattr(fd, termios.TCSADRAIN, old)
+
+
+if __name__ == "__main__":
+    sys.exit(main(sys.argv[1:]))

bot_bottle/backend/macos_container/resolve_plan.py

@@ -0,0 +1,47 @@
+"""Prepare step for the macOS Apple Container backend."""
+
+from __future__ import annotations
+
+from pathlib import Path
+
+from ...agent_provider import AgentProvisionPlan
+from ...egress import EgressPlan
+from ...env import ResolvedEnv
+from ...git_gate import GitGatePlan
+from ...supervise import SupervisePlan
+from ...manifest import Manifest
+from .. import BottleSpec
+from . import util as container_mod
+from .bottle_plan import MacosContainerBottlePlan
+
+
+def preflight() -> None:
+    container_mod.require_container()
+
+
+def build_guest_env(resolved_env: ResolvedEnv) -> dict[str, str]:
+    return dict(resolved_env.literals)
+
+
+def resolve_plan(
+    spec: BottleSpec,
+    manifest: Manifest,
+    slug: str,
+    resolved_env: ResolvedEnv,
+    agent_provision_plan: AgentProvisionPlan,
+    egress_plan: EgressPlan,
+    supervise_plan: SupervisePlan | None,
+    git_gate_plan: GitGatePlan,
+    stage_dir: Path,
+) -> MacosContainerBottlePlan:
+    return MacosContainerBottlePlan(
+        spec=spec,
+        manifest=manifest,
+        stage_dir=stage_dir,
+        slug=slug,
+        forwarded_env=dict(resolved_env.forwarded),
+        git_gate_plan=git_gate_plan,
+        egress_plan=egress_plan,
+        supervise_plan=supervise_plan,
+        agent_provision=agent_provision_plan,
+    )

bot_bottle/backend/macos_container/setup.py

@@ -0,0 +1,79 @@
+"""Host setup + status for the macOS Apple Container backend.
+
+Like Docker, this backend needs no privileged network-pool provisioning
+— it wants Apple's `container` CLI installed and its system service
+running. `setup()` points at the install/`container system start` steps;
+`status()` reports readiness. Reached via
+`MacosContainerBottleBackend.setup` / `.status`, dispatched from the
+generic `./cli.py backend {setup,status}`.
+"""
+
+from __future__ import annotations
+
+import shutil
+import subprocess
+import sys
+
+from . import util as _container
+
+
+def _service_running() -> bool:
+    if shutil.which("container") is None:
+        return False
+    return subprocess.run(
+        ["container", "system", "status"],
+        stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL, check=False,
+    ).returncode == 0
+
+
+def setup() -> int:
+    if not _container.is_macos():
+        sys.stderr.write("macos-container backend requires macOS.\n")
+        return 1
+    if shutil.which("container") is None:
+        sys.stderr.write("Apple Container is required but was not found on PATH.\n")
+        sys.stderr.write("Install: https://github.com/apple/container/releases\n")
+        return 1
+    if not _service_running():
+        sys.stderr.write(
+            "Apple Container is installed but its system service isn't "
+            "running. Start it with: container system start\n"
+        )
+        return 1
+    sys.stderr.write(
+        "macos-container backend: ready — no privileged host setup required.\n"
+    )
+    return 0
+
+
+def teardown() -> int:
+    sys.stderr.write(
+        "macos-container backend: nothing to undo — it provisions no "
+        "privileged host state. The Apple Container CLI and its system "
+        "service are left as-is (stop the service yourself with "
+        "`container system stop` if you want).\n"
+    )
+    return 0
+
+
+def status() -> int:
+    ok = True
+    if _container.is_macos():
+        sys.stderr.write("host: macOS\n")
+    else:
+        sys.stderr.write("host: NOT macOS (backend unsupported here)\n")
+        ok = False
+    if shutil.which("container") is not None:
+        sys.stderr.write("container CLI on PATH: yes\n")
+    else:
+        sys.stderr.write("container CLI on PATH: NO\n")
+        ok = False
+    if ok:
+        sys.stderr.write(
+            f"container system service: {'running' if _service_running() else 'NOT running'}\n"
+        )
+        if not _service_running():
+            ok = False
+    if not ok:
+        sys.stderr.write("\nRun: ./cli.py backend setup --backend=macos-container\n")
+    return 0 if ok else 1

bot_bottle/backend/macos_container/util.py

@@ -0,0 +1,471 @@
+"""Host-side primitives for Apple's `container` CLI."""
+
+from __future__ import annotations
+
+import json
+import os
+import ipaddress
+import platform
+import shutil
+import subprocess
+import tempfile
+import time
+from typing import Iterable
+
+from ...log import die, info
+
+
+_CONTAINER = "container"
+_DEFAULT_DNS = "1.1.1.1"
+
+
+def is_macos() -> bool:
+    return platform.system() == "Darwin"
+
+
+def is_available() -> bool:
+    return is_macos() and shutil.which(_CONTAINER) is not None
+
+
+def require_container() -> None:
+    """Fail with an install pointer if Apple Container is unavailable."""
+    if not is_macos():
+        info("BOT_BOTTLE_BACKEND=macos-container requires macOS.")
+        die("macos-container backend is only supported on macOS")
+    if shutil.which(_CONTAINER) is None:
+        info("Apple Container is required but was not found on PATH.")
+        info("Install: https://github.com/apple/container/releases")
+        die("container not found")
+    _require_container_service()
+
+
+def _require_container_service() -> None:
+    result = subprocess.run(
+        [_CONTAINER, "system", "status"],
+        stdout=subprocess.DEVNULL,
+        stderr=subprocess.DEVNULL,
+        check=False,
+    )
+    if result.returncode != 0:
+        info("Apple Container system service is not running.")
+        info("Start it with: container system start")
+        die("container system service not running")
+
+
+def dns_server() -> str:
+    override = os.environ.get("BOT_BOTTLE_MACOS_CONTAINER_DNS", "").strip()
+    if override:
+        return override
+    return _host_ipv4_dns() or _DEFAULT_DNS
+
+
+def build_image(ref: str, context: str, *, dockerfile: str = "") -> None:
+    """Build an OCI image with Apple's BuildKit-backed `container build`."""
+    info(
+        f"building image {ref} from {context} with Apple Container "
+        "(layer cache keeps repeat builds fast)"
+    )
+    _ensure_builder_dns()
+    args = [_CONTAINER, "build", "-t", ref, "--dns", dns_server()]
+    if dockerfile:
+        # `container build` resolves -f relative to the current working
+        # directory, not the build context. Anchor a relative Dockerfile to
+        # the context so builds work from any cwd.
+        if not os.path.isabs(dockerfile):
+            dockerfile = os.path.join(context, dockerfile)
+        args.extend(["-f", dockerfile])
+    args.append(context)
+    subprocess.run(args, check=True)
+
+
+def commit_container(container_name: str, image_tag: str) -> None:
+    """Snapshot a running Apple Container as a local image.
+
+    `container export` requires a stopped container, but Apple Container
+    removes containers when they stop, making stop-then-export impossible.
+    Instead, exec into the running container as root and stream the root
+    filesystem out via tar, then build a new image from that archive.
+    The bottle continues running after commit.
+    """
+    with tempfile.TemporaryDirectory(prefix="bot-bottle-container-commit.") as tmp:
+        rootfs_tar = os.path.join(tmp, "rootfs.tar")
+        dockerfile = os.path.join(tmp, "Dockerfile")
+        with open(rootfs_tar, "wb") as tar_out:
+            result = subprocess.run(
+                [
+                    _CONTAINER, "exec",
+                    "--user", "root",
+                    container_name,
+                    "tar", "--create",
+                    "--exclude=./proc",
+                    "--exclude=./sys",
+                    "--exclude=./dev",
+                    "--exclude=./run",
+                    "--file=-",
+                    "--directory=/",
+                    ".",
+                ],
+                stdout=tar_out,
+                stderr=subprocess.PIPE,
+                check=False,
+            )
+        if result.returncode != 0:
+            die(
+                f"container exec tar {container_name!r} failed: "
+                f"{(result.stderr or b'').decode().strip() or '<no stderr>'}"
+            )
+        with open(dockerfile, "w", encoding="utf-8") as f:
+            f.write(
+                "FROM scratch\n"
+                "ADD rootfs.tar /\n"
+                "USER node\n"
+                "WORKDIR /home/node\n"
+            )
+        build_image(image_tag, tmp, dockerfile=dockerfile)
+    info(f"committed {container_name!r} → {image_tag!r}")
+
+
+def _ensure_builder_dns() -> None:
+    dns = dns_server()
+    status = _builder_status()
+    override = os.environ.get("BOT_BOTTLE_MACOS_CONTAINER_DNS", "").strip()
+    if _builder_running(status) and _builder_resolves_build_hosts():
+        if override and not _builder_has_dns(status, dns):
+            _restart_builder_with_dns(dns)
+        return
+    _restart_builder_with_dns(dns)
+
+
+def _restart_builder_with_dns(dns: str) -> None:
+    subprocess.run(
+        [_CONTAINER, "builder", "stop"],
+        stdout=subprocess.DEVNULL,
+        stderr=subprocess.DEVNULL,
+        check=False,
+    )
+    subprocess.run(
+        [_CONTAINER, "builder", "start", "--dns", dns],
+        check=True,
+    )
+
+
+def _host_ipv4_dns() -> str:
+    if not is_macos():
+        return ""
+    result = subprocess.run(
+        ["scutil", "--dns"],
+        capture_output=True,
+        text=True,
+        check=False,
+    )
+    if result.returncode != 0:
+        return ""
+    blocks: list[list[str]] = []
+    current: list[str] = []
+    for line in result.stdout.splitlines():
+        if line.startswith("resolver #") and current:
+            blocks.append(current)
+            current = []
+        current.append(line)
+    if current:
+        blocks.append(current)
+    for direct_only in (True, False):
+        for block in blocks:
+            text = "\n".join(block)
+            if direct_only and "Directly Reachable Address" not in text:
+                continue
+            for line in block:
+                if "nameserver[" not in line or ":" not in line:
+                    continue
+                candidate = line.split(":", 1)[1].strip()
+                if _usable_ipv4(candidate):
+                    return candidate
+    return ""
+
+
+def _usable_ipv4(value: str) -> bool:
+    try:
+        address = ipaddress.ip_address(value)
+    except ValueError:
+        return False
+    return (
+        address.version == 4
+        and not address.is_loopback
+        and not address.is_link_local
+        and not address.is_multicast
+        and not address.is_unspecified
+    )
+
+
+def _builder_status() -> list[dict[str, object]]:
+    result = subprocess.run(
+        [_CONTAINER, "builder", "status", "--format", "json"],
+        capture_output=True,
+        text=True,
+        check=False,
+    )
+    if result.returncode != 0:
+        return []
+    try:
+        data = json.loads(result.stdout or "[]")
+    except json.JSONDecodeError:
+        return []
+    if isinstance(data, list):
+        return [entry for entry in data if isinstance(entry, dict)]
+    if isinstance(data, dict):
+        return [data]
+    return []
+
+
+def _builder_running(status: list[dict[str, object]]) -> bool:
+    for entry in status:
+        entry_status = entry.get("status")
+        if isinstance(entry_status, dict) and entry_status.get("state") == "running":
+            return True
+    return False
+
+
+def _builder_dns_nameservers(status: list[dict[str, object]]) -> list[str]:
+    out: list[str] = []
+    for entry in status:
+        config = entry.get("configuration")
+        config_dns = config.get("dns") if isinstance(config, dict) else None
+        nameservers = (
+            config_dns.get("nameservers")
+            if isinstance(config_dns, dict)
+            else None
+        )
+        if not isinstance(nameservers, list):
+            continue
+        out.extend(name for name in nameservers if isinstance(name, str))
+    return out
+
+
+def _builder_has_dns(status: list[dict[str, object]], dns: str) -> bool:
+    return dns in _builder_dns_nameservers(status)
+
+
+def _builder_resolves_build_hosts() -> bool:
+    result = subprocess.run(
+        [_CONTAINER, "exec", "buildkit", "getent", "hosts", "deb.debian.org"],
+        stdout=subprocess.DEVNULL,
+        stderr=subprocess.DEVNULL,
+        check=False,
+    )
+    return result.returncode == 0
+
+
+def image_exists(ref: str) -> bool:
+    return _silent_run([_CONTAINER, "image", "inspect", ref]) == 0
+
+
+def container_exists(name: str) -> bool:
+    result = subprocess.run(
+        [_CONTAINER, "list", "--all", "--quiet"],
+        capture_output=True,
+        text=True,
+        check=False,
+    )
+    if result.returncode != 0:
+        return False
+    return name in {line.strip() for line in result.stdout.splitlines()}
+
+
+def container_is_running(name: str) -> bool:
+    """Return True if the named container is currently running.
+
+    `container list` without `--all` lists only running containers."""
+    result = subprocess.run(
+        [_CONTAINER, "list", "--quiet"],
+        capture_output=True,
+        text=True,
+        check=False,
+    )
+    if result.returncode != 0:
+        return False
+    return name in {line.strip() for line in result.stdout.splitlines()}
+
+
+def stop_container(name: str) -> None:
+    """Stop the named container without deleting it."""
+    result = subprocess.run(
+        [_CONTAINER, "stop", name],
+        capture_output=True,
+        text=True,
+        check=False,
+    )
+    if result.returncode != 0:
+        die(
+            f"container stop {name!r} failed: "
+            f"{(result.stderr or '').strip() or '<no stderr>'}"
+        )
+
+
+def force_remove_container(name: str) -> None:
+    if container_exists(name):
+        subprocess.run(
+            [_CONTAINER, "delete", "--force", name],
+            stdout=subprocess.DEVNULL,
+            stderr=subprocess.DEVNULL,
+            check=False,
+        )
+
+
+def copy_into_container(name: str, host_path: str, container_path: str) -> None:
+    cmd = [_CONTAINER, "cp", host_path, f"{name}:{container_path}"]
+    result = _run_container_op(cmd)
+    if result.returncode != 0:
+        die(
+            f"container cp into {name}:{container_path} failed: "
+            f"{(result.stderr or '').strip() or '<no stderr>'}"
+        )
+
+
+def exec_container(name: str, argv: list[str]) -> None:
+    result = _run_container_op([_CONTAINER, "exec", name, *argv])
+    if result.returncode != 0:
+        die(
+            f"container exec in {name} failed: "
+            f"{(result.stderr or '').strip() or '<no stderr>'}"
+        )
+
+
+def _run_container_op(cmd: list[str]) -> subprocess.CompletedProcess[str]:
+    result = subprocess.run(
+        cmd,
+        capture_output=True,
+        text=True,
+        check=False,
+    )
+    for _ in range(19):
+        if result.returncode == 0:
+            return result
+        time.sleep(0.1)
+        result = subprocess.run(
+            cmd,
+            capture_output=True,
+            text=True,
+            check=False,
+        )
+    return result
+
+
+def create_network(name: str, *, internal: bool = False) -> None:
+    args = [
+        _CONTAINER, "network", "create",
+        "--label", "bot-bottle.backend=macos-container",
+    ]
+    if internal:
+        args.append("--internal")
+    args.append(name)
+    result = subprocess.run(
+        args, capture_output=True, text=True, check=False,
+    )
+    if result.returncode == 0:
+        return
+    if "already exists" in (result.stderr or "").lower():
+        return
+    die(
+        f"container network create {name} failed: "
+        f"{(result.stderr or '').strip() or '<no stderr>'}"
+    )
+
+
+def remove_network(name: str) -> None:
+    result = subprocess.run(
+        [_CONTAINER, "network", "delete", name],
+        stdout=subprocess.DEVNULL,
+        stderr=subprocess.DEVNULL,
+        check=False,
+    )
+    if result.returncode != 0:
+        return
+
+
+def inspect_container(name: str) -> dict[str, object]:
+    result = subprocess.run(
+        [_CONTAINER, "inspect", name],
+        capture_output=True,
+        text=True,
+        check=False,
+    )
+    if result.returncode != 0:
+        die(
+            f"container inspect {name} failed: "
+            f"{(result.stderr or '').strip() or '<no stderr>'}"
+        )
+    try:
+        data = json.loads(result.stdout or "[]")
+    except json.JSONDecodeError as exc:
+        die(f"container inspect {name} returned malformed JSON: {exc}")
+    if isinstance(data, list) and data and isinstance(data[0], dict):
+        return data[0]
+    if isinstance(data, dict):
+        return data
+    die(f"container inspect {name} returned an unexpected shape")
+    raise AssertionError("unreachable")
+
+
+def container_ipv4_on_network(name: str, network: str) -> str:
+    data = inspect_container(name)
+    status = data.get("status")
+    networks = status.get("networks") if isinstance(status, dict) else None
+    if not isinstance(networks, list):
+        die(f"container inspect {name} did not include status.networks")
+    for entry in networks:
+        if not isinstance(entry, dict):
+            continue
+        if entry.get("network") != network:
+            continue
+        raw = entry.get("ipv4Address")
+        if not isinstance(raw, str) or not raw:
+            die(f"container {name} has no IPv4 address on {network}")
+        return raw.split("/", 1)[0]
+    die(f"container {name} is not attached to network {network}")
+    raise AssertionError("unreachable")
+
+
+def image_id(ref: str) -> str:
+    """Return the image digest/ID from `container image inspect`.
+
+    The command returns JSON on current Apple Container releases. Keep
+    parsing narrow and fatal so callers do not cache on an empty key.
+    """
+    import json
+
+    result = subprocess.run(
+        [_CONTAINER, "image", "inspect", ref],
+        capture_output=True,
+        text=True,
+        check=False,
+    )
+    if result.returncode != 0:
+        die(
+            f"container image inspect for {ref!r} failed: "
+            f"{(result.stderr or '').strip() or '<no stderr>'}"
+        )
+    try:
+        data = json.loads(result.stdout or "{}")
+    except json.JSONDecodeError as exc:
+        die(f"container image inspect for {ref!r} returned malformed JSON: {exc}")
+    if isinstance(data, list) and data:
+        data = data[0]
+    if isinstance(data, dict):
+        value = data.get("id") or data.get("digest") or data.get("ID")
+        if value:
+            return str(value)
+    die(f"container image inspect for {ref!r} did not include an image id")
+    raise AssertionError("unreachable")
+
+
+def save(ref: str, output: str) -> None:
+    subprocess.run([_CONTAINER, "image", "save", ref, "-o", output], check=True)
+
+
+def _silent_run(cmd: Iterable[str]) -> int:
+    return subprocess.run(
+        list(cmd),
+        stdout=subprocess.DEVNULL,
+        stderr=subprocess.DEVNULL,
+        check=False,
+    ).returncode

bot_bottle/backend/print_util.py

@@ -1,9 +1,8 @@
 """Shared print helpers for BottlePlan.print implementations.
 
-Lifts the multi-value label printer out of DockerBottlePlan so the
-smolmachines backend (and any future backend) renders the same
-two-column scannable preflight without duplicating the indent
-math."""
+Lifts the multi-value label printer out of DockerBottlePlan so every
+backend (and any future backend) renders the same two-column
+scannable preflight without duplicating the indent math."""
 
 from __future__ import annotations
 

bot_bottle/backend/resolve_common.py

@@ -0,0 +1,132 @@
+"""Shared helpers used across backends' resolve_plan steps.
+
+Each helper owns one well-defined step of the per-bottle plan
+resolution so the backends don't repeat the same logic.
+Backend-specific steps (container names, env-file, per-bottle
+Dockerfile overrides, subnet allocation) stay in the backend's own
+resolve_plan.py.
+"""
+
+from __future__ import annotations
+
+import os
+from dataclasses import replace
+from datetime import datetime, timezone
+from pathlib import Path
+
+from ..agent_provider import AgentProvisionPlan
+from ..bottle_state import (
+    BottleMetadata,
+    agent_state_dir,
+    bottle_identity,
+    egress_state_dir,
+    git_gate_state_dir,
+    supervise_state_dir,
+    write_metadata,
+)
+from ..egress import Egress, EgressPlan
+from ..git_gate import GitGate, GitGatePlan
+from ..manifest import Manifest, ManifestBottle
+from ..supervise import Supervise, SupervisePlan
+from . import BottleSpec
+
+
+def mint_slug(spec: BottleSpec) -> str:
+    """Return the bottle identity: the recorded identity for a resume,
+    or a freshly minted one for a new start.
+
+    When a label is provided it becomes the full slug (no random suffix),
+    so two launches with the same label collide by design.  When no label
+    is given the identity is minted with a random suffix to avoid
+    collisions between anonymous launches of the same agent."""
+    if spec.identity:
+        return spec.identity
+    if spec.label:
+        from .docker import util as docker_mod
+        return docker_mod.slugify(spec.label)
+    return bottle_identity(spec.agent_name)
+
+
+def write_launch_metadata(
+    slug: str, spec: BottleSpec, *, compose_project: str, backend: str,
+) -> None:
+    """Persist launch metadata so `cli.py resume <identity>` can
+    reconstruct the spec. Idempotent — re-writes on resume with a
+    refreshed started_at."""
+    write_metadata(BottleMetadata(
+        identity=slug,
+        agent_name=spec.agent_name,
+        cwd=spec.user_cwd if spec.copy_cwd else "",
+        copy_cwd=spec.copy_cwd,
+        started_at=datetime.now(timezone.utc).isoformat(),
+        compose_project=compose_project,
+        backend=backend,
+        label=spec.label,
+        color=spec.color,
+        bottle_names=spec.bottle_names,
+    ))
+
+
+def prepare_agent_state_dir(slug: str, manifest: Manifest) -> tuple[Path, Path]:
+    """Create the agent state subdir, write the prompt file.
+    Returns (agent_dir, prompt_file)."""
+    agent = manifest.agent
+    agent_dir = agent_state_dir(slug)
+    agent_dir.mkdir(parents=True, exist_ok=True)
+    prompt_file = agent_dir / "prompt.txt"
+    prompt_file.write_text(agent.prompt or "")
+    prompt_file.chmod(0o600)
+    return agent_dir, prompt_file
+
+
+def prepare_git_gate(bottle: ManifestBottle, slug: str) -> GitGatePlan:
+    git_gate_dir = git_gate_state_dir(slug)
+    git_gate_dir.mkdir(parents=True, exist_ok=True)
+    return GitGate().prepare(bottle, slug, git_gate_dir)
+
+
+def prepare_egress(
+    bottle: ManifestBottle, slug: str, provision: AgentProvisionPlan,
+) -> EgressPlan:
+    egress_dir = egress_state_dir(slug)
+    egress_dir.mkdir(parents=True, exist_ok=True)
+    return Egress().prepare(bottle, slug, egress_dir, provision.egress_routes)
+
+
+def prepare_supervise(bottle: ManifestBottle, slug: str) -> SupervisePlan | None:
+    """Prepare the supervise sidecar state dir. Returns None when
+    bottle.supervise is falsy."""
+    if not bottle.supervise:
+        return None
+    supervise_dir = supervise_state_dir(slug)
+    supervise_dir.mkdir(parents=True, exist_ok=True)
+    return Supervise().prepare(slug, supervise_dir)
+
+
+def merge_provision_env_vars(provision: AgentProvisionPlan) -> AgentProvisionPlan:
+    """Fold provision.env_vars into guest_env (setdefault semantics)
+    and return a new plan with the merged guest_env."""
+    merged = dict(provision.guest_env)
+    for key, val in provision.env_vars.items():
+        merged.setdefault(key, val)
+    return replace(provision, guest_env=merged)
+
+
+def resolve_manifest_dockerfile(path_value: str, spec: BottleSpec) -> str:
+    """Resolve a manifest-supplied dockerfile path relative to user_cwd."""
+    path = Path(os.path.expanduser(path_value))
+    if not path.is_absolute():
+        path = Path(spec.user_cwd) / path
+    return str(path)
+
+
+__all__ = [
+    "merge_provision_env_vars",
+    "mint_slug",
+    "prepare_agent_state_dir",
+    "prepare_egress",
+    "prepare_git_gate",
+    "prepare_supervise",
+    "resolve_manifest_dockerfile",
+    "write_launch_metadata",
+]

bot_bottle/backend/smolmachines/__init__.py

@@ -1,15 +0,0 @@
-"""smolmachines bottle backend (PRD 0023).
-
-Selectable via `BOT_BOTTLE_BACKEND=smolmachines`. Runs each
-bottle inside a per-agent microVM (libkrun / Hypervisor.framework
-on macOS) with a userspace gvproxy gateway as the egress
-primitive. The sidecar bundle (PRD 0024) runs as a host-side
-docker container reached only through gvproxy's port-forward list.
-
-Chunk 1 (this commit) ships the backend skeleton + Smolfile +
-gvproxy renderers + preflight check. VM lifecycle, sidecar
-bringup, and provisioning land in later chunks."""
-
-from .backend import SmolmachinesBottleBackend  # noqa: F401
-
-__all__ = ["SmolmachinesBottleBackend"]

bot_bottle/backend/smolmachines/backend.py

@@ -1,75 +0,0 @@
-"""SmolmachinesBottleBackend — the smolmachines implementation of
-BottleBackend (PRD 0023).
-
-Per PRD 0050 the per-provider provisioning steps (prompt, skills,
-the declarative provision-plan apply, supervise MCP registration)
-live on the `AgentProvider` plugin under `bot_bottle/contrib/`. The
-smolmachines backend only owns the steps that are about backend
-infrastructure: CA install (no-op for now), workspace, git copy-in."""
-
-from __future__ import annotations
-
-from contextlib import contextmanager
-from pathlib import Path
-from typing import Generator, Sequence
-
-from .. import ActiveAgent, Bottle, BottleBackend, BottleSpec
-from . import cleanup as _cleanup
-from . import enumerate as _enumerate
-from . import launch as _launch
-from . import prepare as _prepare
-from . import smolvm as _smolvm
-from .bottle import SmolmachinesBottle
-from .bottle_cleanup_plan import SmolmachinesBottleCleanupPlan
-from .bottle_plan import SmolmachinesBottlePlan
-from .provision import workspace as _workspace
-
-
-class SmolmachinesBottleBackend(
-    BottleBackend["SmolmachinesBottlePlan", "SmolmachinesBottleCleanupPlan"]
-):
-    """smolmachines backend. Selected by
-    `BOT_BOTTLE_BACKEND=smolmachines`."""
-
-    name = "smolmachines"
-
-    @classmethod
-    def is_available(cls) -> bool:
-        """`smolvm` on PATH. The backend additionally needs macOS
-        for libkrun + TSI, but `enumerate_active` / `cleanup` are
-        host-shell ops that gracefully no-op on Linux too — the
-        runtime check happens at `prepare`."""
-        return _smolvm.is_available()
-
-    def _resolve_plan(
-        self, spec: BottleSpec, *, stage_dir: Path
-    ) -> SmolmachinesBottlePlan:
-        return _prepare.resolve_plan(spec, stage_dir=stage_dir)
-
-    @contextmanager
-    def launch(
-        self, plan: SmolmachinesBottlePlan
-    ) -> Generator[SmolmachinesBottle, None, None]:
-        with _launch.launch(plan, provision=self.provision) as bottle:
-            yield bottle
-
-    def provision_workspace(
-        self, plan: SmolmachinesBottlePlan, bottle: Bottle
-    ) -> None:
-        _workspace.provision_workspace(plan, bottle)
-
-    def supervise_mcp_url(self, plan: SmolmachinesBottlePlan) -> str:
-        """The smolmachines guest reaches the supervise sidecar via a
-        host-published random port the launch step pinned earlier
-        (`http://<loopback_ip>:<random_port>/`). `agent_supervise_url`
-        on the plan is "" when the bottle has no sidecar."""
-        return plan.agent_supervise_url
-
-    def prepare_cleanup(self) -> SmolmachinesBottleCleanupPlan:
-        return _cleanup.prepare_cleanup()
-
-    def cleanup(self, plan: SmolmachinesBottleCleanupPlan) -> None:
-        _cleanup.cleanup(plan)
-
-    def enumerate_active(self) -> Sequence[ActiveAgent]:
-        return _enumerate.enumerate_active()

bot_bottle/backend/smolmachines/bottle.py

@@ -1,183 +0,0 @@
-"""SmolmachinesBottle — running-instance handle (PRD 0023 chunk 2d).
-
-Routes `exec_agent` / `exec` / `cp_in` through `smolvm machine
-exec` / `smolvm machine cp`. The handle is yielded by `launch`
-and torn down via the surrounding ExitStack on context exit;
-`close` is a no-op idempotent alias so the BottleBackend ABC's
-context-manager contract is satisfied.
-
-User context: `smolvm machine exec` runs commands as root in the
-VM, but the agent image's USER is `node` and agent CLIs may refuse
-to run as root in bypass modes. Both
-`exec_agent` and `exec` switch to the requested user (default
-`node`) via `runuser -u <user> --` and set `HOME` / `USER`
-through `smolvm -e` — avoiding `runuser -l`'s login-shell wiring
-(PAM session setup, /etc/profile sourcing) which can hang on a
-minimal Debian VM with no PAM session config."""
-
-from __future__ import annotations
-
-import subprocess
-import sys
-import time
-from typing import Mapping, cast
-
-from ...agent_provider import PromptMode, prompt_args
-from .. import Bottle, ExecResult
-from . import pty_resize as _pty_resize
-from . import smolvm as _smolvm
-
-
-# Absolute path to the pty_resize wrapper. Invoke as
-# `python <path>` rather than `python -m <dotted-path>` so the
-# wrapper runs regardless of cwd / sys.path — it has no
-# bot_bottle.* imports, so it's self-contained.
-_PTY_RESIZE_SCRIPT = _pty_resize.__file__
-
-
-# Per-user env the agent image's USER (node) expects. Some providers
-# write session state under the user's home directory;
-# bare `runuser -u` inherits root's HOME=/root, which claude
-# can't write to. Set HOME / USER explicitly through smolvm -e
-# so the child process sees them.
-_HOME_FOR = {
-    "node": "/home/node",
-    "root": "/root",
-}
-
-
-def _env_assignments_for(user: str, env: Mapping[str, str]) -> list[str]:
-    home = _HOME_FOR.get(user, f"/home/{user}")
-    out = [f"HOME={home}", f"USER={user}"]
-    for k, v in env.items():
-        out.append(f"{k}={v}")
-    return out
-
-
-class SmolmachinesBottle(Bottle):
-    """Handle returned by `SmolmachinesBottleBackend.launch`. The
-    underlying VM lifecycle (create / start / stop / delete) lives
-    on the launch ExitStack — this class only routes runtime
-    operations to the right `smolvm machine ...` subcommand."""
-
-    def __init__(
-        self,
-        machine_name: str,
-        *,
-        prompt_path: str | None = None,
-        guest_env: Mapping[str, str] | None = None,
-        agent_command: str = "claude",
-        agent_prompt_mode: PromptMode = "append_file",
-    ) -> None:
-        self.name = machine_name
-        # In-VM path to the agent's prompt file. None when the
-        # agent declared no prompt (file still exists; we just
-        # don't pass --append-system-prompt-file).
-        self.prompt_path = prompt_path
-        # Env vars the agent process needs (HTTPS_PROXY,
-        # CLAUDE_CODE_OAUTH_TOKEN, manifest-declared bottle env, …).
-        # Forwarded on every `smolvm machine exec` via `-e K=V`
-        # because exec doesn't inherit from machine_create's env.
-        self._guest_env = dict(guest_env or {})
-        self._agent_prompt_mode = agent_prompt_mode
-        self.agent_command = agent_command
-        self.agent_provider_template = (
-            "codex" if agent_command == "codex" else "claude"
-        )
-
-    def agent_argv(
-        self, argv: list[str], *, tty: bool = True,
-    ) -> list[str]:
-        flags = ["smolvm", "machine", "exec", "--name", self.name]
-        if tty:
-            flags += ["-i", "-t"]
-        agent_tail = ["env", *_env_assignments_for("node", self._guest_env),
-                      self.agent_command]
-        provider_prompt_args = prompt_args(
-            cast(PromptMode, self._agent_prompt_mode), self.prompt_path, argv=argv,
-        )
-        if cast(PromptMode, self._agent_prompt_mode) == "read_prompt_file":
-            agent_tail += argv
-            agent_tail += provider_prompt_args
-        else:
-            agent_tail += provider_prompt_args
-            agent_tail += argv
-        flags += ["--", "runuser", "-u", "node", "--", *agent_tail]
-        if not tty:
-            # No PTY allocated — no SIGWINCH to forward, no resize
-            # bridge needed. Skip the wrapper so non-interactive
-            # exec paths (e.g., provisioning shell-outs that
-            # happen to go through this method) stay light.
-            return flags
-        return [
-            sys.executable, _PTY_RESIZE_SCRIPT,
-            self.name, "--", *flags,
-        ]
-
-    def exec_agent(self, argv: list[str], *, tty: bool = True) -> int:
-        """Run the selected agent interactively inside the VM as the `node`
-        user. Inherits the operator's terminal (stdin / stdout /
-        stderr) so the session feels native. Blocks until the agent
-        exits; returns the in-VM exit code.
-
-        We bypass the captured-output `machine_exec` helper here
-        because that one wraps stdout/stderr in pipes — fine for
-        scripted exec, wrong for an interactive shell. Drop down
-        to `subprocess.run` with the TTY inherited.
-
-        UID switches via `runuser -u node --` (not `-l`) so we
-        avoid login-shell wiring. HOME / USER come from `smolvm
-        -e` instead, which sets them on the process env."""
-        return subprocess.run(
-            self.agent_argv(argv, tty=tty), check=False,
-        ).returncode
-
-    # smolvm/libkrun can SIGKILL an otherwise-normal exec during
-    # early-VM provisioning. Retry once after a short settle so
-    # callers (provision_ca, etc.) don't have to handle it themselves.
-    _SIGKILL_EXIT = 128 + 9
-
-    def exec(self, script: str, *, user: str = "node") -> ExecResult:
-        """Run a POSIX shell script as `user` (default `node`) and
-        capture the result. Matches the docker backend's `exec`,
-        which defaults to the image's USER (also node) — so test
-        helpers / provision shell-outs run with the same identity
-        on both backends. Pass `user="root"` for tests that need
-        root.
-
-        `runuser -u <user> -- env ... /bin/sh -c <script>` switches UID
-        without invoking a login shell, then sets HOME / USER and the
-        bottle env in the child process.
-
-        Retries once on SIGKILL (exit 137) — libkrun occasionally
-        kills short-lived execs during VM bring-up."""
-        r = self._exec_raw(script, user=user)
-        if r.returncode == self._SIGKILL_EXIT:
-            time.sleep(1.0)
-            r = self._exec_raw(script, user=user)
-        return r
-
-    def _exec_raw(self, script: str, *, user: str = "node") -> ExecResult:
-        argv = [
-            "--", "runuser", "-u", user, "--",
-            "env", *_env_assignments_for(user, self._guest_env),
-            "/bin/sh", "-c", script,
-        ]
-        r = subprocess.run(
-            ["smolvm", "machine", "exec", "--name", self.name] + argv,
-            capture_output=True, text=True, check=False,
-        )
-        return ExecResult(
-            returncode=r.returncode,
-            stdout=r.stdout or "",
-            stderr=r.stderr or "",
-        )
-
-    def cp_in(self, host_path: str, container_path: str) -> None:
-        """Copy a host path into the guest at `container_path`."""
-        _smolvm.machine_cp(host_path, f"{self.name}:{container_path}")
-
-    def close(self) -> None:
-        # Real teardown lives on the launch ExitStack; this is just
-        # the idempotent alias the BottleBackend ABC expects.
-        pass

bot_bottle/backend/smolmachines/bottle_cleanup_plan.py

@@ -1,55 +0,0 @@
-"""SmolmachinesBottleCleanupPlan — concrete BottleCleanupPlan (issue #77).
-
-Tracks the resources `SmolmachinesBottleBackend.cleanup` will
-remove:
-
-  - machines:  smolvm machines whose name starts with
-               `bot-bottle-` (running or stopped). Stopped +
-               deleted via `smolvm machine stop` + `machine delete -f`.
-  - bundles:   docker containers `bot-bottle-sidecars-<slug>`
-               left over from a smolmachines bottle (the bundle's
-               port-forwards stay published on lo0 aliases until
-               the container is gone). Removed via `docker rm -f`.
-  - networks:  docker networks `bot-bottle-bundle-<slug>`
-               attached to the bundles. Removed via
-               `docker network rm`.
-
-Smolmachines state dirs live under the same `~/.bot-bottle/state/`
-path the docker backend uses; the docker backend's
-`prepare_cleanup` already enumerates orphan state dirs and is the
-single source of truth for that bucket (consults
-`enumerate_active_bottles()` so it doesn't reap a live
-smolmachines bottle's dir)."""
-
-from __future__ import annotations
-
-import sys
-from dataclasses import dataclass
-
-from ...log import info
-from .. import BottleCleanupPlan
-
-
-@dataclass(frozen=True)
-class SmolmachinesBottleCleanupPlan(BottleCleanupPlan):
-    """Resources SmolmachinesBottleBackend.cleanup will remove.
-    Produced by `prepare_cleanup`; sorted so the y/N output is
-    stable."""
-
-    machines: tuple[str, ...] = ()
-    bundles: tuple[str, ...] = ()
-    networks: tuple[str, ...] = ()
-
-    @property
-    def empty(self) -> bool:
-        return not self.machines and not self.bundles and not self.networks
-
-    def print(self) -> None:
-        print(file=sys.stderr)
-        for name in self.machines:
-            info(f"smolvm machine:  {name}")
-        for name in self.bundles:
-            info(f"bundle container:{name}")
-        for name in self.networks:
-            info(f"bundle network:  {name}")
-        print(file=sys.stderr)

bot_bottle/backend/smolmachines/bottle_plan.py

@@ -1,107 +0,0 @@
-"""SmolmachinesBottlePlan — concrete BottlePlan for the smolmachines
-backend (PRD 0023).
-
-Slug + bundle docker subnet / gateway / pinned IP + smolvm
-machine name + agent `.smolmachine` artifact + per-bottle guest
-env. Provisioning fields (CA cert path, prompt path, etc.) land
-in chunk 4."""
-
-from __future__ import annotations
-
-from dataclasses import dataclass
-from pathlib import Path
-
-from ...agent_provider import PromptMode
-from .. import BottlePlan
-
-
-@dataclass(frozen=True)
-class SmolmachinesBottlePlan(BottlePlan):
-    """Resolved fields the launch step needs to bring up the bottle.
-
-    Inherits `spec`, `stage_dir`, `git_gate_plan`, `egress_plan`,
-    `supervise_plan`, and `agent_provision` from BottlePlan."""
-
-    slug: str
-    # Per-bottle docker subnet for the sidecar bundle container.
-    # The bundle runs at `bundle_ip` (always `.2`); the gateway is
-    # at `.1`. smolvm's TSI allowlist is set to `bundle_ip/32`.
-    bundle_subnet: str
-    bundle_gateway: str
-    bundle_ip: str
-    # smolvm machine name + agent image source. machine_create
-    # boots from a packed `.smolmachine` artifact (pre-baked at
-    # prepare time via `smolvm pack create`); using `--from`
-    # instead of `--image` avoids the registry-pull race we hit
-    # when machine_start tried to fetch on-demand and the libkrun
-    # agent's network attempt got refused by macOS.
-    #
-    # Chunk 2d ships with a public placeholder image (alpine)
-    # since bot-bottle-claude:latest lives in the operator's local
-    # docker daemon and smolvm's crane backend can't read from
-    # there; chunk 4 resolves the agent-image-conversion gap
-    # (push to a registry first, or smolvm grows a docker-daemon
-    # transport).
-    machine_name: str
-    # Agent image ref (docker tag). `launch` runs the
-    # build → save → registry push → smolvm pack pipeline against
-    # this and feeds the resulting `.smolmachine` artifact to
-    # `machine_create --from`. The pipeline runs at launch time
-    # (not prepare time) so the docker build output doesn't garble
-    # the dashboard's preflight modal.
-    agent_image_ref: str
-    # In-guest env vars (HTTPS_PROXY etc) — IP-literal URLs since
-    # the guest has no DNS resolver inside the TSI allowlist.
-    # Passed to `smolvm machine create` as `-e K=V` flags.
-    # Smolfile-rendering is gone (smolvm 0.8.0's
-    # `--smolfile` is mutually exclusive with `--from`, and
-    # `--from` is the path that avoids the registry-pull race).
-    guest_env: dict[str, str]
-    # Path to the agent's prompt file on the host. Always written
-    # (mode 0o600) so the in-VM path always exists; the file is
-    # empty when the agent has no prompt — claude-code reads it
-    # via --append-system-prompt-file only when non-empty.
-    prompt_file: Path
-    # Inner Plans for the sidecar bundle daemons. The same shape the
-    # docker backend uses — same `.prepare()` calls produced
-    # them — but our launch step doesn't populate the
-    # docker-specific network fields (internal_network,
-    # egress_network) because the smolmachines bundle isn't on
-    # docker's `--internal` + egress bridge topology; it's on a
-    # per-bottle bridge with a pinned IP. The unused fields stay
-    # at their dataclass defaults.
-    # Agent-side endpoints. On Docker Desktop the docker bridge
-    # IPs aren't reachable from the smolvm guest (TSI uses macOS
-    # networking; docker container IPs live in the daemon's VM),
-    # so the agent dials the bundle via host loopback +
-    # docker-published random ports. Empty at prepare time;
-    # launch populates these after bundle bringup via
-    # `dataclasses.replace`. Format: a `host:port` for git-gate
-    # (insteadOf URL prefix) + full URLs for proxy / supervise.
-    agent_proxy_url: str = ""
-    agent_git_gate_host: str = ""
-    agent_supervise_url: str = ""
-
-    @property
-    def git_gate_insteadof_host(self) -> str:
-        return self.agent_git_gate_host
-
-    @property
-    def git_gate_insteadof_scheme(self) -> str:
-        return "http"
-
-    @property
-    def agent_command(self) -> str:
-        return self.agent_provision.command
-
-    @property
-    def agent_prompt_mode(self) -> PromptMode:
-        return self.agent_provision.prompt_mode
-
-    @property
-    def agent_provider_template(self) -> str:
-        return self.agent_provision.template
-
-    @property
-    def agent_dockerfile_path(self) -> str:
-        return self.agent_provision.dockerfile

bot_bottle/backend/smolmachines/cleanup.py

@@ -1,159 +0,0 @@
-"""Cleanup + active-listing for the smolmachines backend (issue #77).
-
-`prepare_cleanup` enumerates leftover smolmachines resources:
-
-  - smolvm machines (`smolvm machine ls --json`) whose name starts
-    with `bot-bottle-`.
-  - bundle docker containers (`bot-bottle-sidecars-<slug>`).
-  - bundle docker networks (`bot-bottle-bundle-<slug>`).
-
-State dirs live under `~/.bot-bottle/state/<identity>/` —
-shared layout with the docker backend, which has the single
-orphan-state-dir enumerator (it already consults
-`enumerate_active_agents()` so a live smolmachines bottle's dir
-is preserved).
-
-`cleanup` removes everything in the plan: stop + delete each VM,
-force-rm each container, rm each network. Each step is
-best-effort — a failure on one resource doesn't block the others."""
-
-from __future__ import annotations
-
-import json
-import subprocess
-
-from ...log import info, warn
-from . import sidecar_bundle as _bundle
-from . import smolvm as _smolvm
-from .bottle_cleanup_plan import SmolmachinesBottleCleanupPlan
-
-
-# Both names start with the same prefix the launcher uses.
-_VM_PREFIX = "bot-bottle-"
-_BUNDLE_PREFIX = _bundle.bundle_container_name("")          # `bot-bottle-sidecars-`
-_NETWORK_PREFIX = _bundle.bundle_network_name("")           # `bot-bottle-bundle-`
-
-
-def prepare_cleanup() -> SmolmachinesBottleCleanupPlan:
-    """Enumerate every smolmachines-owned resource on the host.
-    No side effects. Returns an empty plan when smolvm isn't on
-    PATH (no machines to reap) — `cleanup` is a no-op in that
-    case too."""
-    machines = _list_bot_bottle_machines()
-    bundles = _list_bundle_containers()
-    networks = _list_bundle_networks()
-    return SmolmachinesBottleCleanupPlan(
-        machines=tuple(sorted(machines)),
-        bundles=tuple(sorted(bundles)),
-        networks=tuple(sorted(networks)),
-    )
-
-
-def cleanup(plan: SmolmachinesBottleCleanupPlan) -> None:
-    """Remove everything in the plan. Order matters: stop VMs
-    first (they hold ports on lo0 aliases via libkrun), then the
-    bundle containers (which hold the host port-forwards), then
-    the networks (which docker won't reap until the containers
-    are gone)."""
-    for name in plan.machines:
-        info(f"stopping smolvm machine {name}")
-        subprocess.run(
-            ["smolvm", "machine", "stop", "--name", name],
-            stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL,
-            check=False,
-        )
-        info(f"deleting smolvm machine {name}")
-        r = subprocess.run(
-            ["smolvm", "machine", "delete", "-f", name],
-            capture_output=True, text=True, check=False,
-        )
-        if r.returncode != 0:
-            warn(
-                f"smolvm machine delete -f {name} failed: "
-                f"{(r.stderr or '').strip()}"
-            )
-
-    for name in plan.bundles:
-        info(f"removing bundle container {name}")
-        subprocess.run(
-            ["docker", "rm", "-f", name],
-            stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL,
-            check=False,
-        )
-
-    for name in plan.networks:
-        info(f"removing bundle network {name}")
-        r = subprocess.run(
-            ["docker", "network", "rm", name],
-            capture_output=True, text=True, check=False,
-        )
-        if r.returncode != 0 and "no such network" not in (r.stderr or "").lower():
-            warn(
-                f"docker network rm {name} failed: "
-                f"{(r.stderr or '').strip()}"
-            )
-
-
-def _list_bot_bottle_machines() -> list[str]:
-    """All smolvm machines named `bot-bottle-*`, regardless of
-    state (running / stopped / created). Empty when smolvm isn't
-    installed."""
-    if not _smolvm.is_available():
-        return []
-    r = subprocess.run(
-        ["smolvm", "machine", "ls", "--json"],
-        capture_output=True, text=True, check=False,
-    )
-    if r.returncode != 0:
-        return []
-    try:
-        machines = json.loads(r.stdout or "[]")
-    except json.JSONDecodeError:
-        return []
-    return [
-        m["name"] for m in machines
-        if isinstance(m, dict)
-        and m.get("name", "").startswith(_VM_PREFIX)
-    ]
-
-
-def _list_bundle_containers() -> list[str]:
-    """All docker containers named `bot-bottle-sidecars-*`,
-    running or stopped. Empty when docker isn't installed."""
-    # Late import: `backend/__init__` imports this module
-    # transitively via the smolmachines backend.
-    from .. import has_backend
-    if not has_backend("docker"):
-        return []
-    r = subprocess.run(
-        ["docker", "ps", "-a",
-         "--filter", f"name=^{_BUNDLE_PREFIX}",
-         "--format", "{{.Names}}"],
-        capture_output=True, text=True, check=False,
-    )
-    if r.returncode != 0:
-        return []
-    return [
-        line for line in (r.stdout or "").splitlines()
-        if line and line.startswith(_BUNDLE_PREFIX)
-    ]
-
-
-def _list_bundle_networks() -> list[str]:
-    """All docker networks named `bot-bottle-bundle-*`. Empty
-    when docker isn't installed."""
-    from .. import has_backend
-    if not has_backend("docker"):
-        return []
-    r = subprocess.run(
-        ["docker", "network", "ls",
-         "--filter", f"name={_NETWORK_PREFIX}",
-         "--format", "{{.Name}}"],
-        capture_output=True, text=True, check=False,
-    )
-    if r.returncode != 0:
-        return []
-    return [
-        line for line in (r.stdout or "").splitlines()
-        if line and line.startswith(_NETWORK_PREFIX)
-    ]

bot_bottle/backend/smolmachines/enumerate.py

@@ -1,123 +0,0 @@
-"""Active-agent enumeration for the smolmachines backend (PRD
-0023 chunk 4 follow-up + issue #77).
-
-Returns a list of `ActiveAgent` records — same shape the docker
-backend produces — so CLI `list active` and the dashboard agents
-pane render both backends through one code path.
-
-A smolmachines agent is "active" when its smolvm guest is
-running. We cross-reference against the per-bottle sidecar
-bundle container to populate the `services` field (which daemons
-are up in the bundle); without a bundle we still surface the VM
-so the operator can see + clean it up.
-
-The cross-backend caller gates on `has_backend("smolmachines")`
-and `has_backend("docker")`, so this module assumes both are
-available when called. Both subprocess calls below still
-tolerate "command not on PATH" defensively, but the gate is the
-intended access pattern."""
-
-from __future__ import annotations
-
-import json
-import subprocess
-
-from .. import ActiveAgent
-from ..docker.bottle_state import read_metadata
-from . import sidecar_bundle as _bundle
-
-
-# Smolvm VM names produced by prepare are `bot-bottle-<slug>`,
-# matching the bundle container name pattern. We use the prefix
-# both as a filter and to strip back to the slug.
-_VM_NAME_PREFIX = "bot-bottle-"
-
-
-def enumerate_active() -> list[ActiveAgent]:
-    """All currently-running smolmachines-backed agents. Empty
-    list when no matching VMs are running. Caller is responsible
-    for gating on `has_backend('smolmachines')` if needed; if
-    smolvm is missing the `smolvm machine ls` call below returns
-    nothing silently."""
-    result = subprocess.run(
-        ["smolvm", "machine", "ls", "--json"],
-        capture_output=True, text=True, check=False,
-    )
-    if result.returncode != 0:
-        return []
-    try:
-        machines = json.loads(result.stdout or "[]")
-    except json.JSONDecodeError:
-        return []
-    services_by_slug = _query_bundle_services()
-    out: list[ActiveAgent] = []
-    for m in machines:
-        name = m.get("name") or ""
-        state = m.get("state") or ""
-        if state != "running" or not name.startswith(_VM_NAME_PREFIX):
-            continue
-        slug = name[len(_VM_NAME_PREFIX):]
-        metadata = read_metadata(slug)
-        out.append(ActiveAgent(
-            backend_name="smolmachines",
-            slug=slug,
-            agent_name=metadata.agent_name if metadata else "?",
-            started_at=metadata.started_at if metadata else "",
-            services=services_by_slug.get(slug, ()),
-            label=metadata.label if metadata else "",
-            color=metadata.color if metadata else "",
-        ))
-    return out
-
-
-def _query_bundle_services() -> dict[str, tuple[str, ...]]:
-    """`{slug: ('egress', ...)}` from each running bundle container's
-    `BOT_BOTTLE_SIDECAR_DAEMONS` env var.
-    Smolmachines bundles all run the PRD-0024 image with the
-    same daemon set declared via env, so one inspect per bundle
-    gets us the picture without exec'ing into the container.
-
-    Returns an empty mapping when the docker backend isn't
-    available — the bundle services field on each ActiveAgent
-    just shows up empty, matching the docker backend's "starting"
-    state."""
-    # Late import: `has_backend` lives on the backend package's
-    # __init__, which imports this module transitively. Pulling
-    # the name in at call time sidesteps the cycle.
-    from .. import has_backend
-    if not has_backend("docker"):
-        return {}
-    ps = subprocess.run(
-        ["docker", "ps",
-         "--filter", "name=" + _bundle.bundle_container_name(""),
-         "--format", "{{.Names}}"],
-        capture_output=True, text=True, check=False,
-    )
-    if ps.returncode != 0:
-        return {}
-    out: dict[str, tuple[str, ...]] = {}
-    for line in (ps.stdout or "").splitlines():
-        name = line.strip()
-        if not name:
-            continue
-        slug = name.removeprefix(_bundle.bundle_container_name(""))
-        if not slug:
-            continue
-        inspect = subprocess.run(
-            ["docker", "inspect", name, "--format", "{{json .Config.Env}}"],
-            capture_output=True, text=True, check=False,
-        )
-        if inspect.returncode != 0:
-            continue
-        try:
-            env_list = json.loads(inspect.stdout or "[]")
-        except json.JSONDecodeError:
-            continue
-        for entry in env_list:
-            key, _, value = entry.partition("=")
-            if key == "BOT_BOTTLE_SIDECAR_DAEMONS":
-                out[slug] = tuple(sorted(
-                    d for d in value.split(",") if d
-                ))
-                break
-    return out

bot_bottle/backend/smolmachines/launch.py

@@ -1,428 +0,0 @@
-"""End-to-end launch flow for the smolmachines backend
-(PRD 0023 chunks 2d + 4b).
-
-Brings up the per-bottle docker bridge + sidecar bundle (with
-real daemons + their config files), creates + starts the smolvm
-guest pointed at the bundle's pinned IP via TSI's
-`--allow-cidr <bundle-ip>/32` allowlist, yields a
-`SmolmachinesBottle` handle, tears everything down on context
-exit.
-
-The bundle's daemons consume the inner Plans the docker backend
-already produces: egress reads routes + CAs from the EgressPlan.
-Git-gate + supervise plumb through the same plans the docker
-backend uses, minus the docker-network fields that don't apply here."""
-
-from __future__ import annotations
-
-import dataclasses
-import os
-from contextlib import ExitStack, contextmanager
-from pathlib import Path
-from typing import Callable, Generator
-
-from ...egress import (
-    EGRESS_ROUTES_IN_CONTAINER,
-    egress_resolve_token_values,
-)
-from ...supervise import QUEUE_DIR_IN_CONTAINER, SUPERVISE_PORT
-from ...util import expand_tilde
-from ..docker import util as docker_mod
-from ..docker.egress import (
-    EGRESS_CA_IN_CONTAINER,
-    EGRESS_PORT as _EGRESS_PORT,
-    egress_tls_init,
-)
-from ..docker.git_gate import (
-    GIT_GATE_ACCESS_HOOK_IN_CONTAINER,
-    GIT_GATE_CREDS_DIR_IN_CONTAINER,
-    GIT_GATE_ENTRYPOINT_IN_CONTAINER,
-    GIT_GATE_HOOK_IN_CONTAINER,
-)
-from ...git_gate import revoke_git_gate_provisioned_keys
-from ...log import warn
-from ..docker.bottle_state import egress_state_dir, git_gate_state_dir
-from . import loopback_alias as _loopback
-from . import sidecar_bundle as _bundle
-from . import smolvm as _smolvm
-from .bottle import SmolmachinesBottle
-from .bottle_plan import SmolmachinesBottlePlan
-from .local_registry import crane_push_tarball, ephemeral_registry
-
-
-# Repo root, used as the `docker build` context for the agent image.
-_REPO_DIR = str(Path(__file__).resolve().parent.parent.parent.parent)
-
-
-# Per-host cache for `smolvm pack create` outputs. Keyed by the
-# docker image ID so a Dockerfile change automatically invalidates
-# the cache. `pack create` is idempotent on the smolvm side but
-# takes several seconds even on a no-op rebuild.
-_SMOLMACHINE_CACHE_DIR = Path.home() / ".cache" / "bot-bottle" / "smolmachines"
-
-
-# Container-internal listening ports for each bundle daemon. The
-# bundle publishes each one on a random host loopback port (see
-# `_bundle.start_bundle`), and `_bundle.bundle_host_port` looks
-# them up post-start.
-_GIT_HTTP_PORT = 9420
-_SUPERVISE_PORT = SUPERVISE_PORT
-
-
-@contextmanager
-def launch(
-    plan: SmolmachinesBottlePlan,
-    *,
-    provision: Callable[[SmolmachinesBottlePlan, "SmolmachinesBottle"], str | None],
-) -> Generator[SmolmachinesBottle, None, None]:
-    """Build + run the bottle and yield a handle; tear everything
-    down on exit. Errors during bringup unwind any partial state
-    via the ExitStack."""
-    stack = ExitStack()
-    try:
-        loopback_ip, network = _allocate_resources(plan, stack)
-        plan = _mint_certs(plan)
-        plan = _start_bundle(plan, network, loopback_ip, stack)
-        plan = _discover_urls(plan, loopback_ip)
-
-        # Build the agent image and pack it into a `.smolmachine`
-        # artifact (or hit the per-Dockerfile-digest cache). Runs
-        # here, not in prepare, so the docker-build output doesn't
-        # garble the dashboard's preflight modal.
-        agent_from_path = _ensure_smolmachine(
-            plan.agent_image_ref,
-            dockerfile=plan.agent_dockerfile_path,
-        )
-
-        _launch_vm(plan, agent_from_path, loopback_ip, stack)
-        _init_vm(plan)
-
-        bottle = SmolmachinesBottle(
-            plan.machine_name,
-            prompt_path=None,
-            guest_env=plan.guest_env,
-            agent_command=plan.agent_command,
-            agent_prompt_mode=plan.agent_prompt_mode,
-        )
-        bottle.prompt_path = provision(plan, bottle)
-
-        yield bottle
-    finally:
-        _teardown_smolmachines(stack, plan)
-
-
-def _teardown_smolmachines(
-    stack: ExitStack,
-    plan: SmolmachinesBottlePlan,
-) -> None:
-    """Unwind the ExitStack, then revoke any provisioned deploy keys.
-
-    ExitStack errors are caught and logged (non-fatal) so that key
-    revocation always runs. Revocation errors propagate — a stranded
-    deploy key is a security concern the operator must address."""
-    teardown_exc: BaseException | None = None
-    try:
-        stack.close()
-    except BaseException as exc:  # noqa: W0718 — teardown must not fail
-        teardown_exc = exc
-        warn(f"smolmachines teardown failed: {exc!r}")
-    bottle = plan.spec.manifest.bottle_for(plan.spec.agent_name)
-    revoke_git_gate_provisioned_keys(bottle, git_gate_state_dir(plan.slug))
-    if teardown_exc is not None:
-        raise teardown_exc
-
-
-def _allocate_resources(
-    plan: SmolmachinesBottlePlan,
-    stack: ExitStack,
-) -> tuple[str, str]:
-    """Reserve a loopback alias and create the per-bottle docker bridge.
-
-    macOS only routes 127.0.0.1 by default; the per-bottle alias
-    scopes TSI's allowlist to this bottle's published ports so the
-    agent can't reach other bottles' or host services' ports on
-    loopback. No-op on Linux."""
-    _loopback.ensure_pool()
-    loopback_ip = _loopback.allocate(plan.slug)
-    network = _bundle.bundle_network_name(plan.slug)
-    _bundle.create_bundle_network(network, plan.bundle_subnet, plan.bundle_gateway)
-    stack.callback(_bundle.remove_bundle_network, network)
-    return loopback_ip, network
-
-
-def _mint_certs(plan: SmolmachinesBottlePlan) -> SmolmachinesBottlePlan:
-    """Mint the egress MITM CA and return the plan with CA paths filled."""
-    egress_ca_host, egress_ca_cert_only = egress_tls_init(
-        egress_state_dir(plan.slug),
-    )
-    egress_plan = dataclasses.replace(
-        plan.egress_plan,
-        mitmproxy_ca_host_path=egress_ca_host,
-        mitmproxy_ca_cert_only_host_path=egress_ca_cert_only,
-    )
-    return dataclasses.replace(plan, egress_plan=egress_plan)
-
-
-def _start_bundle(
-    plan: SmolmachinesBottlePlan,
-    network: str,
-    loopback_ip: str,
-    stack: ExitStack,
-) -> SmolmachinesBottlePlan:
-    """Build the BundleLaunchSpec, resolve token env, start the
-    sidecar bundle container, and register teardown."""
-    bundle_spec = _bundle_launch_spec(plan, network, loopback_ip)
-    token_env = _resolve_token_env(plan, dict(os.environ))
-    _bundle.ensure_bundle_image(bundle_spec.image)
-    _bundle.start_bundle(bundle_spec, env={**os.environ, **token_env})
-    stack.callback(_bundle.stop_bundle, plan.slug)
-    return plan
-
-
-def _discover_urls(
-    plan: SmolmachinesBottlePlan,
-    loopback_ip: str,
-) -> SmolmachinesBottlePlan:
-    """Discover host-side ports for published container ports and
-    return the plan with URLs + guest_env stamped in.
-
-    Docker container IPs (192.168.x.x in the daemon's bridge)
-    aren't reachable from the smolvm guest on macOS — TSI uses
-    macOS networking, and macOS sees the daemon's bridge via the
-    published-port loopback forward only.
-
-    NO_PROXY includes the per-bottle loopback alias so the
-    supervise + git-gate URLs bypass HTTPS_PROXY."""
-    agent_facing_host_port = _bundle.bundle_host_port(
-        plan.slug, _EGRESS_PORT, host_ip=loopback_ip,
-    )
-    agent_proxy_url = f"http://{loopback_ip}:{agent_facing_host_port}"
-
-    agent_git_gate_host = ""
-    if plan.git_gate_plan.upstreams:
-        git_gate_host_port = _bundle.bundle_host_port(
-            plan.slug, _GIT_HTTP_PORT, host_ip=loopback_ip,
-        )
-        agent_git_gate_host = f"{loopback_ip}:{git_gate_host_port}"
-
-    agent_supervise_url = ""
-    if plan.supervise_plan is not None:
-        supervise_host_port = _bundle.bundle_host_port(
-            plan.slug, _SUPERVISE_PORT, host_ip=loopback_ip,
-        )
-        agent_supervise_url = f"http://{loopback_ip}:{supervise_host_port}/"
-
-    existing_no_proxy = plan.guest_env.get("NO_PROXY", "localhost,127.0.0.1")
-    guest_env = {
-        **plan.guest_env,
-        "HTTPS_PROXY": agent_proxy_url,
-        "HTTP_PROXY":  agent_proxy_url,
-        "NO_PROXY":    f"{existing_no_proxy},{loopback_ip}",
-    }
-    if agent_git_gate_host:
-        guest_env["GIT_GATE_URL"] = f"http://{agent_git_gate_host}"
-    if agent_supervise_url:
-        guest_env["MCP_SUPERVISE_URL"] = agent_supervise_url
-
-    return dataclasses.replace(
-        plan,
-        guest_env=guest_env,
-        agent_proxy_url=agent_proxy_url,
-        agent_git_gate_host=agent_git_gate_host,
-        agent_supervise_url=agent_supervise_url,
-    )
-
-
-def _launch_vm(
-    plan: SmolmachinesBottlePlan,
-    agent_from_path: Path,
-    loopback_ip: str,
-    stack: ExitStack,
-) -> None:
-    """Create, patch, and start the smolvm VM; register teardown.
-
-    --allow-cidr is the per-bottle loopback alias so the guest can
-    only reach this bottle's bundle ports. force_allowlist patches
-    smolvm 0.8.0's silent-drop of --allow-cidr when combined with
-    --from. Smolfile isn't usable here — smolvm 0.8.0 makes --from
-    and --smolfile mutually exclusive."""
-    _smolvm.machine_create(
-        plan.machine_name,
-        from_path=agent_from_path,
-        allow_cidrs=[f"{loopback_ip}/32"],
-        env=plan.guest_env,
-    )
-    stack.callback(_smolvm.machine_delete, plan.machine_name)
-    # Workaround smolvm 0.8.0: `--allow-cidr` is silently dropped
-    # when combined with `--from`. Patch the persisted state DB
-    # before start so the booted VM's TSI actually enforces.
-    _loopback.force_allowlist(plan.machine_name, [f"{loopback_ip}/32"])
-    _smolvm.machine_start(plan.machine_name)
-    stack.callback(_smolvm.machine_stop, plan.machine_name)
-
-
-def _init_vm(plan: SmolmachinesBottlePlan) -> None:
-    """Repair filesystem ownership and wait for exec channel readiness.
-
-    Ownership repair: smolvm's pack process remaps files to the host
-    invoker's uid (501 on macOS). /home/node must be node:node so
-    Claude Code can write ~/.claude.json; /tmp + /var/tmp need root
-    mode 1777 so non-root processes can create per-uid scratch dirs.
-    All folded into one sh -c to avoid back-to-back exec calls
-    immediately after machine_start (libkrun exec-channel race).
-
-    wait_exec_ready polls until the exec channel is ready for the
-    subsequent provision calls, replacing the empirical sleep."""
-    _smolvm.machine_exec(plan.machine_name, [
-        "sh", "-c",
-        "chown -R node:node /home/node && "
-        "chown root:root /tmp /var/tmp && "
-        "chmod 1777 /tmp /var/tmp",
-    ])
-    _smolvm.wait_exec_ready(plan.machine_name)
-
-
-def _bundle_launch_spec(
-    plan: SmolmachinesBottlePlan, network: str, loopback_ip: str,
-) -> _bundle.BundleLaunchSpec:
-    """Build a BundleLaunchSpec from the resolved inner Plans.
-
-    Daemons in the CSV:
-      - egress is always present.
-      - git-gate + git-http are conditional on plan.git_gate_plan.upstreams.
-      - supervise is conditional on plan.supervise_plan.
-
-    Env + volumes are the union of the sidecar daemons' needs, with
-    daemon-private values only (HTTPS_PROXY is scoped to the
-    egress process by egress_entrypoint.sh — see PRD 0024's bundle
-    bind-address PR)."""
-    daemons: list[str] = ["egress"]
-    env: list[str] = []
-    volumes: list[tuple[str, str, bool]] = []
-
-    # --- egress -----------------------------------------------
-    ep = plan.egress_plan
-    volumes.append((str(ep.mitmproxy_ca_host_path), EGRESS_CA_IN_CONTAINER, True))
-    if ep.routes:
-        volumes.append((str(ep.routes_path), EGRESS_ROUTES_IN_CONTAINER, True))
-        # Bare-name entries for upstream-token slots. Their values
-        # come from the docker-run subprocess env (inherited from
-        # the operator's shell), never landing on argv.
-        for token_env in sorted(ep.token_env_map.keys()):
-            env.append(token_env)
-
-    # --- git-gate ---------------------------------------------
-    gp = plan.git_gate_plan
-    if gp.upstreams:
-        daemons += ["git-gate", "git-http"]
-        volumes += [
-            (str(gp.entrypoint_script), GIT_GATE_ENTRYPOINT_IN_CONTAINER, True),
-            (str(gp.hook_script), GIT_GATE_HOOK_IN_CONTAINER, True),
-            (str(gp.access_hook_script), GIT_GATE_ACCESS_HOOK_IN_CONTAINER, True),
-        ]
-        for u in gp.upstreams:
-            keypath = expand_tilde(u.identity_file)
-            volumes.append((
-                keypath,
-                f"{GIT_GATE_CREDS_DIR_IN_CONTAINER}/{u.name}-key",
-                True,
-            ))
-            if u.known_hosts_file:
-                volumes.append((
-                    str(u.known_hosts_file),
-                    f"{GIT_GATE_CREDS_DIR_IN_CONTAINER}/{u.name}-known_hosts",
-                    True,
-                ))
-
-    # --- supervise --------------------------------------------
-    sp = plan.supervise_plan
-    if sp is not None:
-        daemons.append("supervise")
-        env += [
-            f"SUPERVISE_BOTTLE_SLUG={plan.slug}",
-            f"SUPERVISE_QUEUE_DIR={QUEUE_DIR_IN_CONTAINER}",
-            f"SUPERVISE_PORT={SUPERVISE_PORT}",
-        ]
-        volumes.append((str(sp.queue_dir), QUEUE_DIR_IN_CONTAINER, False))
-
-    # Container ports the agent reaches from the smolvm guest —
-    # published on host loopback so the guest can dial via TSI +
-    # macOS networking. Egress is always the agent's HTTP/HTTPS proxy.
-    ports_to_publish: list[int] = [_EGRESS_PORT]
-    if gp.upstreams:
-        ports_to_publish.append(_GIT_HTTP_PORT)
-    if sp is not None:
-        ports_to_publish.append(_SUPERVISE_PORT)
-
-    return _bundle.BundleLaunchSpec(
-        slug=plan.slug,
-        network_name=network,
-        subnet=plan.bundle_subnet,
-        gateway=plan.bundle_gateway,
-        bundle_ip=plan.bundle_ip,
-        daemons_csv=",".join(daemons),
-        environment=tuple(env),
-        volumes=tuple(volumes),
-        ports_to_publish=tuple(ports_to_publish),
-        publish_host_ip=loopback_ip,
-    )
-
-
-def _resolve_token_env(
-    plan: SmolmachinesBottlePlan, host_env: dict[str, str],
-) -> dict[str, str]:
-    """Resolve the egress token env-var values from the host's
-    environ so they reach the bundle's process env via docker's
-    `-e NAME` inheritance. Empty when no routes declare auth."""
-    effective_env = {**host_env, **plan.agent_provision.provisioned_env}
-    return egress_resolve_token_values(plan.egress_plan.token_env_map, effective_env)
-
-
-def _ensure_smolmachine(image_ref: str, *, dockerfile: str = "") -> Path:
-    """Build the agent docker image and convert it into a
-    `.smolmachine` artifact, caching the result under
-    `~/.cache/bot-bottle/smolmachines/` keyed by the docker image
-    ID (so a Dockerfile change automatically invalidates the cache).
-
-    Returns the `.smolmachine.smolmachine` sidecar path — that's
-    the file `machine create --from` consumes (pack create produces
-    a launcher binary at `.smolmachine` plus the sidecar alongside
-    it; the sidecar is the actual artifact).
-
-    Conversion path: `docker build` (the existing layer cache
-    makes no-change rebuilds cheap) → `docker save` to a tarball
-    → spin up an ephemeral registry on a private docker network →
-    `crane push --insecure` from a one-shot container on the same
-    network → `smolvm pack create --image localhost:<host port>/...`
-    → tear down the registry + network. The crane push detour
-    sidesteps the Docker-Desktop daemon's HTTPS preference for
-    non-loopback registries — see the `local_registry` module
-    docstring for the gory details.
-
-    Each pack-create costs several seconds even on a hot cache,
-    so we skip the whole pipeline when the cached sidecar is
-    already on disk for this image ID."""
-    _SMOLMACHINE_CACHE_DIR.mkdir(parents=True, exist_ok=True)
-    docker_mod.build_image(image_ref, _REPO_DIR, dockerfile=dockerfile)
-    # `sha256:abcd...` -> `abcd...` first 16 chars: short enough to
-    # keep filenames manageable, long enough to make collisions
-    # astronomically unlikely.
-    digest = docker_mod.image_id(image_ref).split(":", 1)[-1][:16]
-    binary = _SMOLMACHINE_CACHE_DIR / f"{digest}.smolmachine"
-    sidecar = _SMOLMACHINE_CACHE_DIR / f"{digest}.smolmachine.smolmachine"
-    if sidecar.is_file():
-        return sidecar
-    tarball = _SMOLMACHINE_CACHE_DIR / f"{digest}.image.tar"
-    docker_mod.save(image_ref, str(tarball))
-    try:
-        with ephemeral_registry() as handle:
-            push_ref = f"{handle.push_endpoint}/bot-bottle:{digest}"
-            pack_ref = f"{handle.pull_endpoint}/bot-bottle:{digest}"
-            crane_push_tarball(handle, str(tarball), push_ref)
-            _smolvm.pack_create(pack_ref, binary)
-    finally:
-        # Tarball is ~500MB-1GB for the agent image; reclaim once
-        # the smolmachine artifact exists. The artifact itself is
-        # the long-lived cache entry.
-        tarball.unlink(missing_ok=True)
-    return sidecar

bot_bottle/backend/smolmachines/local_registry.py

@@ -1,236 +0,0 @@
-"""Ephemeral local OCI registry for the smolmachines agent-image
-conversion path (PRD 0023 chunk 4c).
-
-`smolvm pack create --image <ref>` only accepts OCI registry refs
-— it can't read the local docker daemon's image cache, an OCI
-layout directory, or a `docker save` tarball. To convert the
-agent's Dockerfile-built image into a `.smolmachine` artifact we
-spin up a short-lived `registry:2.8.3` container alongside a
-`crane` helper container on a private docker network, push via
-`crane push --insecure <tarball> <registry-container>:5000/...`,
-and let smolvm pull from the registry's published host port. The
-network + both containers are torn down after the pack completes.
-
-Why this two-container dance instead of plain `docker push`:
-- Docker Desktop's daemon runs in its own Linux VM, so its
-  `localhost` is not the host's loopback. A registry bound to
-  the host's 127.0.0.1 is unreachable from the daemon side.
-- `host.docker.internal` is reachable from the daemon but isn't
-  in Docker's default insecure-registries CIDRs (only `::1/128`
-  and `127.0.0.0/8` are), so `docker push` to it tries HTTPS,
-  hits a plain-HTTP registry, and dies with
-  `http: server gave HTTP response to HTTPS client`. Adding
-  `host.docker.internal` to daemon.json works but is a one-time
-  manual step the user has to do in Docker Desktop's UI.
-- Going through a docker network sidesteps the host-vs-daemon
-  loopback mismatch (crane and registry containers see each
-  other on the network) AND the HTTPS preference (crane has an
-  `--insecure` flag that forces plain HTTP).
-
-The registry is also published on a random host port so smolvm
-— a host process — can pull from `localhost:<port>` via Docker's
-port-forward. smolvm's bundled crane auto-falls-back to HTTP for
-localhost addresses, so no insecure-registries config is needed
-on that side either."""
-
-from __future__ import annotations
-
-import os
-import socket
-import subprocess
-import time
-import uuid
-from contextlib import contextmanager
-from dataclasses import dataclass
-from typing import Generator
-
-from ...log import die
-
-
-# registry:2.8.3, pinned by digest. Same env-override pattern as the
-# sidecar image pin in bot_bottle/backend/docker/sidecar_bundle.py.
-REGISTRY_IMAGE = os.environ.get(
-    "BOT_BOTTLE_REGISTRY_IMAGE",
-    "registry@sha256:a3d8aaa63ed8681a604f1dea0aa03f100d5895b6a58ace528858a7b332415373",
-)
-
-
-# gcr.io/go-containerregistry/crane:latest, pinned by digest. ~10MB,
-# stable upstream from Google; we only invoke `crane push --insecure`
-# against a localhost-equivalent registry, so the trust surface is
-# narrow.
-CRANE_IMAGE = os.environ.get(
-    "BOT_BOTTLE_CRANE_IMAGE",
-    (
-        "gcr.io/go-containerregistry/crane@sha256:"
-        "0ae17ecb34315aa7cbff28f6eddee3b7adae0b2f90101260d990804db1eb0084"
-    ),
-)
-
-
-# Internal port the registry binds to inside its container — fixed
-# by the registry:2 image. The host-side mapping is random.
-_REGISTRY_CONTAINER_PORT = "5000"
-
-
-# How long to wait for the registry's HTTP layer to bind before
-# giving up. Two seconds is empirically enough; 10s leaves headroom
-# for slow CI runners without making the failure mode chatty.
-_READY_TIMEOUT_S = 10.0
-
-
-@dataclass(frozen=True)
-class RegistryHandle:
-    """Everything callers need to push to + pull from the ephemeral
-    registry.
-
-    `network` is the per-session docker network — a `crane push`
-    container has to join it to reach the registry by name.
-    `push_endpoint` is the `<host>:<port>` form to embed in image
-    refs given to the crane push container (resolves via docker
-    network DNS). `pull_endpoint` is the `<host>:<port>` form a
-    host process (smolvm) uses; the registry's host port mapping
-    backs this."""
-
-    network: str
-    push_endpoint: str
-    pull_endpoint: str
-
-
-@contextmanager
-def ephemeral_registry() -> Generator[RegistryHandle, None, None]:
-    """Bring up a per-session docker network + a `registry:2.8.3`
-    container on it (published on a random host port), yield a
-    `RegistryHandle`, force-remove both on exit.
-
-    The container is started with `--rm` so a clean exit cleans up
-    on its own; the `finally` block force-removes on abnormal exit
-    (the calling process crashes between yield and close)."""
-    session_id = uuid.uuid4().hex[:12]
-    network = f"bot-bottle-registry-net-{session_id}"
-    registry_name = f"bot-bottle-registry-{session_id}"
-
-    subprocess.run(
-        ["docker", "network", "create", network],
-        check=True,
-        capture_output=True,
-    )
-    try:
-        subprocess.run(
-            [
-                "docker", "run", "-d", "--rm",
-                "--name", registry_name,
-                "--network", network,
-                # `-p :5000` (no IP prefix) binds the container's
-                # port 5000 on a random host port across all
-                # interfaces. The host side reaches the registry
-                # via this port — smolvm's `pack create` pulls from
-                # `localhost:<port>` and the docker port-forward
-                # routes there.
-                "-p", _REGISTRY_CONTAINER_PORT,
-                REGISTRY_IMAGE,
-            ],
-            check=True,
-            capture_output=True,
-        )
-        try:
-            port = _host_port(registry_name)
-            _wait_ready(port)
-            yield RegistryHandle(
-                network=network,
-                push_endpoint=f"{registry_name}:{_REGISTRY_CONTAINER_PORT}",
-                pull_endpoint=f"localhost:{port}",
-            )
-        finally:
-            subprocess.run(
-                ["docker", "rm", "-f", registry_name],
-                check=False,
-                capture_output=True,
-            )
-    finally:
-        subprocess.run(
-            ["docker", "network", "rm", network],
-            check=False,
-            capture_output=True,
-        )
-
-
-def crane_push_tarball(handle: RegistryHandle, tarball_path: str, ref: str) -> None:
-    """Run `crane push --insecure <tarball> <ref>` inside a one-shot
-    container on the registry's docker network. `ref` should
-    reference the registry by `handle.push_endpoint` so the crane
-    container resolves it via docker network DNS.
-
-    Doesn't go through `docker push` to avoid the Docker-Desktop
-    daemon's HTTPS preference for non-loopback hostnames — crane's
-    `--insecure` flag forces plain HTTP, which is what the
-    registry container speaks."""
-    r = subprocess.run(
-        [
-            "docker", "run", "--rm",
-            "--network", handle.network,
-            "-v", f"{tarball_path}:/img.tar:ro",
-            CRANE_IMAGE,
-            "push", "--insecure", "/img.tar", ref,
-        ],
-        capture_output=True,
-        text=True,
-        check=False,
-    )
-    if r.returncode != 0:
-        die(
-            f"crane push of {tarball_path!r} to {ref!r} failed: "
-            f"{(r.stderr or r.stdout or '').strip() or '<no output>'}"
-        )
-
-
-def _host_port(name: str) -> int:
-    """Resolve the host-side port docker mapped to the registry's
-    container port. `docker port <name> 5000/tcp` returns one or
-    more `host:port` lines (one per address family) — we take the
-    first."""
-    r = subprocess.run(
-        ["docker", "port", name, f"{_REGISTRY_CONTAINER_PORT}/tcp"],
-        capture_output=True,
-        text=True,
-        check=False,
-    )
-    if r.returncode != 0:
-        die(
-            f"docker port {name} {_REGISTRY_CONTAINER_PORT}/tcp failed: "
-            f"{(r.stderr or '').strip() or '<no stderr>'}"
-        )
-    # `0.0.0.0:54321\n[::]:54321\n` — split on the last colon to
-    # handle either IPv4 or IPv6 host syntax.
-    line = (r.stdout or "").splitlines()[0].strip()
-    _, _, port_str = line.rpartition(":")
-    try:
-        return int(port_str)
-    except ValueError:
-        die(f"unexpected `docker port` output: {line!r}")
-
-
-def _wait_ready(port: int) -> None:
-    """Block until the registry's HTTP layer accepts a TCP
-    connection on `127.0.0.1:<port>`, or `_READY_TIMEOUT_S`
-    elapses.
-
-    A successful TCP connect is sufficient — registry:2.8.3 binds
-    after it's ready to serve `/v2/` requests, so the push that
-    follows will land on a working server. We probe loopback
-    specifically (not via the docker network) because this helper
-    runs on the host."""
-    deadline = time.monotonic() + _READY_TIMEOUT_S
-    last_err: Exception | None = None
-    while time.monotonic() < deadline:
-        try:
-            with socket.create_connection(("127.0.0.1", port), timeout=0.5):
-                return
-        except OSError as e:
-            last_err = e
-            time.sleep(0.1)
-    die(
-        f"local registry on 127.0.0.1:{port} did not accept "
-        f"connections within {_READY_TIMEOUT_S:.0f}s "
-        f"(last error: {last_err})"
-    )

bot_bottle/backend/smolmachines/loopback_alias.py

@@ -1,272 +0,0 @@
-"""Per-bottle loopback alias allocation + TSI allowlist
-enforcement (PRD 0023, follow-up to PR #74).
-
-After the pivot to host-loopback port-forwards, the smolmachines
-TSI allowlist was `127.0.0.1/32` — which meant the agent VM could
-reach **any** service bound to macOS's loopback, not just the
-bundle's published ports. Real downgrade from the docker
-backend's `--internal` network isolation.
-
-This module narrows the allowlist by allocating each bottle a
-unique loopback alias (`127.0.0.16` .. `127.0.0.31`). The
-bundle's port-forwards bind to that alias, and the alias's /32
-is what TSI allows.
-
-**Smolvm 0.8.0 quirk + workaround.** `smolvm machine create
---from <smolmachine> --net --allow-cidr X/32` silently drops the
-flag — verified empirically that the agent process's allowlist
-ends up `null` in smolvm's persistent state DB (`~/Library/
-Application Support/smolvm/server/smolvm.db`, `vms` table,
-`data` BLOB), and the booted VM reaches all of `127.0.0.0/8`
-regardless of what we passed. Workaround: after machine_create,
-open the SQLite DB and patch the row's `allowed_cidrs` field
-directly. Smolvm reads the DB at machine_start, so the patched
-value takes effect on boot. Tested: enforcement is real — the
-guest's connect to a non-allowlisted IP fails with `Permission
-denied`. Other paths we tried (machine update, stop-edit-
-agent.config.json-restart, --smolfile, --image localhost:N/...)
-were dead ends.
-
-macOS only configures `127.0.0.1` on `lo0` by default; the
-additional aliases require `sudo ifconfig lo0 alias`. We lazily
-sudo-add the missing pool on first use per boot — the aliases
-persist on `lo0` until reboot, so subsequent launches don't
-prompt.
-
-Linux native daemons share the host's network namespace; the
-whole `127.0.0.0/8` is reachable by default and aliases are
-unnecessary. The pool logic detects native-Linux and skips sudo
-entirely; the DB patch is also gated on macOS.
-
-Allocation is coordinated by inspecting running bundle
-containers' published host IPs — each bottle's bundle owns the
-alias appearing in its port bindings. The lowest-numbered free
-alias gets handed to a new bottle."""
-
-from __future__ import annotations
-
-import fcntl
-import json
-import platform
-import re
-import sqlite3
-import subprocess
-from pathlib import Path
-from typing import Iterable
-
-from ...log import die, info
-
-
-# smolvm's persistent VM state on macOS — a SQLite DB whose `vms`
-# table holds one JSON BLOB per machine. The Linux path is
-# different, but smolmachines is macOS-only in v1 (PRD 0023) so
-# we hard-code this. If the file moves under us we'll see a
-# clear FileNotFoundError; not worth defensive cross-platform
-# detection until the backend actually needs Linux.
-_SMOLVM_DB_PATH = (
-    Path.home()
-    / "Library"
-    / "Application Support"
-    / "smolvm"
-    / "server"
-    / "smolvm.db"
-)
-
-
-# Sixteen aliases by default. Tunable for hosts that want more
-# concurrent bottles (each bottle reserves one alias for its
-# bundle bringup). The range is chosen to avoid the reserved
-# 127.0.0.1/2/3 ports (1 is the default, 2 is sometimes used by
-# CUPS, 3 by other macOS services) and stay well clear of
-# 127.0.0.53 (systemd-resolved) and 127.0.0.54 (libvirt).
-_POOL_START = 16
-_POOL_END = 31  # inclusive
-
-
-# File lock that serialises concurrent allocate() calls so two
-# simultaneous launches can't read the same docker state and claim
-# the same alias. Narrowed to the allocate() call itself; docker run
-# runs after the lock is released. Once the container is running it
-# appears in docker state and future allocate() calls will see it.
-_ALLOC_LOCK_PATH = Path.home() / ".cache" / "bot-bottle" / "smolmachines.lock"
-
-
-# Loopback aliases pool: 127.0.0.<start>..127.0.0.<end>.
-def _pool_addresses() -> list[str]:
-    return [f"127.0.0.{i}" for i in range(_POOL_START, _POOL_END + 1)]
-
-
-def _is_macos() -> bool:
-    return platform.system() == "Darwin"
-
-
-def ensure_pool() -> None:
-    """Make sure each address in the pool is up on `lo0`. Lazily
-    runs `sudo ifconfig lo0 alias <ip>/32 up` for missing entries
-    (sudo prompts once, then the aliases persist on lo0 until
-    reboot). No-op on non-macOS hosts."""
-    if not _is_macos():
-        return
-    missing = [ip for ip in _pool_addresses() if not _alias_present(ip)]
-    if not missing:
-        return
-    info(
-        f"smolmachines needs {len(missing)} loopback alias(es) on lo0 "
-        f"({', '.join(missing[:3])}{', ...' if len(missing) > 3 else ''}) "
-        f"to scope per-bottle TSI allowlists. sudo will prompt once; "
-        f"aliases persist until reboot."
-    )
-    for ip in missing:
-        result = subprocess.run(
-            ["sudo", "-p", "bot-bottle (loopback alias): ",
-             "ifconfig", "lo0", "alias", f"{ip}/32", "up"],
-            check=False,
-        )
-        if result.returncode != 0:
-            die(
-                f"sudo ifconfig lo0 alias {ip} failed (exit "
-                f"{result.returncode}). Re-run with sudo available, "
-                f"or add manually: sudo ifconfig lo0 alias {ip}/32 up"
-            )
-
-
-def force_allowlist(machine_name: str, allowed_cidrs: list[str]) -> None:
-    """Patch smolvm's persistent VM-state DB to set the machine's
-    `allowed_cidrs` to the given list. Workaround for smolvm
-    0.8.0's silent-drop of `--allow-cidr` when used with `--from`.
-
-    Must run AFTER `smolvm machine create` (the row has to
-    exist) and BEFORE `smolvm machine start` (smolvm reads the
-    row on start; in-flight VMs don't pick up changes). Once
-    smolvm honors the CLI flag upstream this whole function is
-    redundant — flag-respecting create + remove this call from
-    launch.
-
-    No-op on non-macOS — the DB path differs and the Linux
-    smolmachines code path isn't exercised in v1."""
-    if not _is_macos():
-        return
-    if not _SMOLVM_DB_PATH.is_file():
-        die(
-            f"smolvm state DB not found at {_SMOLVM_DB_PATH}. "
-            f"smolvm 0.8.0 expected? `smolvm --version` to check."
-        )
-    con = sqlite3.connect(str(_SMOLVM_DB_PATH))
-    try:
-        cur = con.cursor()
-        row = cur.execute(
-            "SELECT data FROM vms WHERE name = ?", (machine_name,),
-        ).fetchone()
-        if row is None:
-            die(
-                f"smolvm DB has no row for machine {machine_name!r} — "
-                f"machine_create must run before force_allowlist."
-            )
-        cfg = json.loads(row[0])
-        cfg["allowed_cidrs"] = list(allowed_cidrs)
-        # Write as BLOB (the column type smolvm uses) — passing a
-        # plain str makes sqlite store it as Text and smolvm then
-        # fails to read it.
-        cur.execute(
-            "UPDATE vms SET data = ? WHERE name = ?",
-            (sqlite3.Binary(json.dumps(cfg).encode()), machine_name),
-        )
-        con.commit()
-    finally:
-        con.close()
-
-
-def allocate(_slug: str) -> str:
-    """Pick the lowest-numbered alias from the pool not already
-    in use by a running smolmachines bundle. Bails when the pool
-    is exhausted — the caller should report the limit to the
-    operator. `_slug` is logged for traceability; not otherwise
-    used (no on-disk reservation, allocation is purely
-    docker-state-driven).
-
-    On non-macOS the whole `127.0.0.0/8` is loopback by default;
-    `127.0.0.1` is fine to share and we skip the alias dance.
-    This still returns a deterministic address so launch.py's
-    callers don't have to branch on platform.
-
-    An exclusive file lock serialises concurrent calls so two
-    simultaneous launches don't read the same docker state and
-    claim the same alias."""
-    if not _is_macos():
-        return "127.0.0.1"
-    _ALLOC_LOCK_PATH.parent.mkdir(parents=True, exist_ok=True)
-    with open(_ALLOC_LOCK_PATH, "w", encoding="utf-8") as lf:
-        fcntl.flock(lf, fcntl.LOCK_EX)
-        return _allocate_locked()
-
-
-def _allocate_locked() -> str:
-    in_use = _aliases_in_use()
-    for ip in _pool_addresses():
-        if ip not in in_use:
-            return ip
-    die(
-        f"smolmachines loopback alias pool exhausted "
-        f"({_POOL_END - _POOL_START + 1} aliases, all in use). "
-        f"Stop a running bottle (`smolvm machine ls --json`) or "
-        f"raise _POOL_END in loopback_alias.py."
-    )
-
-
-def _alias_present(ip: str) -> bool:
-    """True iff `ifconfig lo0` shows `<ip>` as an inet address.
-    Exact-match — `127.0.0.1` shouldn't match `127.0.0.16`."""
-    result = subprocess.run(
-        ["/sbin/ifconfig", "lo0"],
-        capture_output=True, text=True, check=False,
-    )
-    if result.returncode != 0:
-        return False
-    pattern = re.compile(rf"\binet {re.escape(ip)}\b")
-    return bool(pattern.search(result.stdout or ""))
-
-
-def _aliases_in_use() -> set[str]:
-    """Aliases already bound by another smolmachines bundle's
-    published-port mappings. We inspect every container whose
-    name matches the smolmachines bundle prefix and pull the
-    `HostIp` out of its port bindings."""
-    result = subprocess.run(
-        ["docker", "ps", "--format", "{{.Names}}",
-         "--filter", "name=bot-bottle-sidecars-"],
-        capture_output=True, text=True, check=False,
-    )
-    if result.returncode != 0:
-        return set()
-    names = [n.strip() for n in (result.stdout or "").splitlines() if n.strip()]
-    in_use: set[str] = set()
-    for name in names:
-        in_use.update(_host_ips_for_container(name))
-    return in_use
-
-
-def _host_ips_for_container(name: str) -> Iterable[str]:
-    """Yield the `HostIp` values across all port bindings on
-    container `name`. A bundle binds three or four ports and
-    they all share the same HostIp, so callers can take any."""
-    result = subprocess.run(
-        ["docker", "inspect", name,
-         "--format", "{{json .HostConfig.PortBindings}}"],
-        capture_output=True, text=True, check=False,
-    )
-    if result.returncode != 0:
-        return ()
-    try:
-        bindings = json.loads(result.stdout or "{}")
-    except json.JSONDecodeError:
-        return ()
-    seen: set[str] = set()
-    for _port, mappings in (bindings or {}).items():
-        for m in mappings or []:
-            host_ip = m.get("HostIp") or ""
-            if host_ip:
-                seen.add(host_ip)
-    return seen
-
-
-__all__ = ["allocate", "ensure_pool", "force_allowlist"]

bot_bottle/backend/smolmachines/prepare.py

@@ -1,185 +0,0 @@
-"""smolmachines `_resolve_plan` (PRD 0023 chunks 2d + 4c).
-
-Resolves the per-bottle docker subnet + bundle IP and assembles
-the guest env. The agent's docker image build → smolmachine
-pack pipeline runs in `launch.launch`, not here, so the
-dashboard's preflight modal isn't garbled by docker-build output
-before the operator has confirmed.
-
-No VM bringup — that's `launch.launch`'s job."""
-
-from __future__ import annotations
-
-import os
-from datetime import datetime, timezone
-from dataclasses import replace
-from pathlib import Path
-
-from ...agent_provider import agent_provision_plan, runtime_for
-from ...backend import BottleSpec
-from ...backend.docker.bottle_state import (
-    BottleMetadata,
-    agent_state_dir,
-    bottle_identity,
-    egress_state_dir,
-    git_gate_state_dir,
-    supervise_state_dir,
-    write_metadata,
-)
-from ...egress import Egress
-from ...env import resolve_env
-from ...git_gate import GitGate
-from ...supervise import Supervise
-from ...workspace import workspace_plan as resolve_workspace_plan
-from .bottle_plan import SmolmachinesBottlePlan
-from .util import smolmachines_bundle_subnet, smolmachines_preflight
-
-
-# Gateway ports the bundle exposes inside its container — git-gate's
-# git-daemon, supervise's MCP. The agent inside the smolvm guest
-# dials these on the bundle's pinned IP.
-_BUNDLE_GIT_GATE_PORT = 9418
-_BUNDLE_SUPERVISE_PORT = 9100
-
-
-def resolve_plan(
-    spec: BottleSpec, *, stage_dir: Path
-) -> SmolmachinesBottlePlan:
-    """Materialize the smolmachines plan. The bundle's docker
-    subnet + pinned IP are derived from the slug; the agent's
-    `.smolmachine` artifact is built (or cache-hit) here so
-    launch's `machine create --from` boots without a registry
-    pull. Per-bottle guest env + the TSI allow_cidrs land on the
-    plan for launch to pass straight through to
-    `machine create` flags."""
-    smolmachines_preflight()
-
-    manifest = spec.manifest
-    bottle = manifest.bottle_for(spec.agent_name)
-    provider = bottle.agent_provider
-    provider_runtime = runtime_for(provider.template)
-    guest_home = "/home/node"
-    workspace_plan = resolve_workspace_plan(spec, guest_home=guest_home)
-
-    slug = spec.identity or bottle_identity(spec.agent_name)
-
-    # Record minimal metadata so `cli.py resume` can recover the
-    # slug. Same schema as the docker backend.
-    write_metadata(BottleMetadata(
-        identity=slug,
-        agent_name=spec.agent_name,
-        cwd=spec.user_cwd if spec.copy_cwd else "",
-        copy_cwd=spec.copy_cwd,
-        started_at=datetime.now(timezone.utc).isoformat(),
-        compose_project="",
-        backend="smolmachines",
-        label=spec.label,
-        color=spec.color,
-    ))
-
-    subnet, gateway, bundle_ip = smolmachines_bundle_subnet(slug)
-
-    # Agent's env: resolve through resolve_env() so ?prompt entries
-    # are prompted and ${HOST_VAR} entries are interpolated — matching
-    # the Docker backend's contract. Forwarded (secret/interpolated)
-    # values still reach the guest as -e K=V smolvm flags because
-    # smolvm 0.8.0 has no env-file or stdin injection path; this is
-    # the known argv-exposure gap documented in PRD 0038.
-    # HTTPS_PROXY / GIT_GATE_URL / MCP_SUPERVISE_URL are populated
-    # in launch.py after bundle bringup.
-    resolved = resolve_env(manifest, spec.agent_name)
-    guest_env: dict[str, str] = {
-        **resolved.literals,
-        **resolved.forwarded,
-        "NO_PROXY":    "localhost,127.0.0.1",
-        "NODE_EXTRA_CA_CERTS": "/etc/ssl/certs/ca-certificates.crt",
-        "SSL_CERT_FILE":       "/etc/ssl/certs/ca-certificates.crt",
-        "REQUESTS_CA_BUNDLE":  "/etc/ssl/certs/ca-certificates.crt",
-    }
-
-    git_gate_dir = git_gate_state_dir(slug)
-    git_gate_dir.mkdir(parents=True, exist_ok=True)
-    git_gate_plan = GitGate().prepare(bottle, slug, git_gate_dir)
-
-    # Prompt file is always written (mode 0o600) so the in-VM
-    # path always exists. Content is the agent's `prompt`
-    # field (markdown body) — empty for agents with no prompt.
-    # claude-code reads it via --append-system-prompt-file only
-    # when non-empty, but the file must exist either way to
-    # match the docker backend's contract.
-    agent_dir = agent_state_dir(slug)
-    agent_dir.mkdir(parents=True, exist_ok=True)
-    prompt_file = agent_dir / "prompt.txt"
-    agent = manifest.agents[spec.agent_name]
-    prompt_file.write_text(agent.prompt or "")
-    prompt_file.chmod(0o600)
-
-    machine_name = f"bot-bottle-{slug}"
-    # Stash the agent image ref — `launch.launch` runs the
-    # build → pack pipeline at bringup. Honors BOT_BOTTLE_IMAGE
-    # to match the docker backend's `resolve_plan` default.
-    agent_dockerfile_path = ""
-    if provider.dockerfile:
-        agent_dockerfile_path = _resolve_manifest_dockerfile(provider.dockerfile, spec)
-        image_default = f"bot-bottle-{provider.template}:{slug}"
-    elif provider_runtime.dockerfile:
-        agent_dockerfile_path = provider_runtime.dockerfile
-        image_default = provider_runtime.image
-    else:
-        image_default = provider_runtime.image
-    agent_image_ref = os.environ.get("BOT_BOTTLE_IMAGE", image_default)
-    agent_provision = agent_provision_plan(
-        template=provider.template,
-        dockerfile=agent_dockerfile_path,
-        state_dir=agent_dir,
-        guest_home=guest_home,
-        guest_env=guest_env,
-        forward_host_credentials=provider.forward_host_credentials,
-        auth_token=provider.auth_token,
-        host_env=dict(os.environ),
-        trusted_project_path=workspace_plan.workdir,
-        label=spec.label,
-        color=spec.color,
-    )
-    merged_guest_env = dict(agent_provision.guest_env)
-    for key, val in agent_provision.env_vars.items():
-        merged_guest_env.setdefault(key, val)
-    agent_provision = replace(agent_provision, guest_env=merged_guest_env)
-
-    egress_dir = egress_state_dir(slug)
-    egress_dir.mkdir(parents=True, exist_ok=True)
-    egress_plan = Egress().prepare(
-        bottle, slug, egress_dir, agent_provision.egress_routes,
-    )
-
-    supervise_plan = None
-    if bottle.supervise:
-        supervise_dir = supervise_state_dir(slug)
-        supervise_dir.mkdir(parents=True, exist_ok=True)
-        supervise_plan = Supervise().prepare(slug, supervise_dir)
-
-    return SmolmachinesBottlePlan(
-        spec=spec,
-        stage_dir=stage_dir,
-        guest_home=guest_home,
-        slug=slug,
-        bundle_subnet=subnet,
-        bundle_gateway=gateway,
-        bundle_ip=bundle_ip,
-        machine_name=machine_name,
-        agent_image_ref=agent_image_ref,
-        guest_env=agent_provision.guest_env,
-        prompt_file=prompt_file,
-        git_gate_plan=git_gate_plan,
-        egress_plan=egress_plan,
-        supervise_plan=supervise_plan,
-        agent_provision=agent_provision,
-        workspace_plan=workspace_plan,
-    )
-
-
-def _resolve_manifest_dockerfile(path_value: str, spec: BottleSpec) -> str:
-    path = Path(os.path.expanduser(path_value))
-    if not path.is_absolute():
-        path = Path(spec.user_cwd) / path
-    return str(path)

bot_bottle/backend/smolmachines/provision/__init__.py

@@ -1,13 +0,0 @@
-"""Backend-infrastructure provisioners for the smolmachines backend.
-
-Per PRD 0050 the per-provider provisioning steps (prompt, skills,
-declarative provision-plan apply, supervise MCP registration) live on
-the `AgentProvider` plugin under `bot_bottle/contrib/`. CA and git
-provisioning also moved to the AgentProvider ABC (with Debian/node
-defaults); user plugins override them for non-standard images.
-
-The module left in this subpackage handles the remaining backend-
-specific step:
-
-  - workspace.py — copy the operator workspace into the guest
-"""

bot_bottle/backend/smolmachines/provision/workspace.py

@@ -1,32 +0,0 @@
-"""Copy the operator workspace into a smolmachines guest."""
-
-from __future__ import annotations
-
-import shlex
-
-from ....log import info
-from ... import Bottle
-from ..bottle_plan import SmolmachinesBottlePlan
-
-
-def provision_workspace(plan: SmolmachinesBottlePlan, bottle: Bottle) -> None:
-    """Copy host cwd contents to the planned guest workspace."""
-    workspace = plan.workspace_plan
-    if not (workspace.enabled and workspace.copy_contents):
-        return
-
-    guest_parent = workspace.guest_path.rsplit("/", 1)[0] or "/"
-    guest_path_q = shlex.quote(workspace.guest_path)
-    guest_parent_q = shlex.quote(guest_parent)
-    owner_q = shlex.quote(workspace.owner)
-    mode_q = shlex.quote(workspace.mode)
-    info(f"copying {workspace.host_path} -> {bottle.name}:{workspace.guest_path}")
-    bottle.exec(
-        f"rm -rf {guest_path_q} && mkdir -p {guest_parent_q}",
-        user="root",
-    )
-    bottle.cp_in(str(workspace.host_path), workspace.guest_path)
-    bottle.exec(
-        f"chown -R {owner_q} {guest_path_q} && chmod {mode_q} {guest_path_q}",
-        user="root",
-    )

bot_bottle/backend/smolmachines/pty_resize.py

@@ -1,151 +0,0 @@
-"""Host-side SIGWINCH → in-VM PTY resize bridge (issue #82).
-
-smolvm 0.8.0 `machine exec -t` allocates an in-VM PTY but never
-forwards the host terminal's window size (TIOCSWINSZ) to it. The
-PTY's initial size is `0 0`, and any host-side resize during the
-session goes unnoticed — the in-VM claude TUI keeps rendering for
-whatever (typically tiny) box it last saw, ignoring the operator's
-tmux pane resize. `docker exec -it` does this forwarding
-automatically; smolvm doesn't.
-
-This module wraps `smolvm machine exec` with a thin parent
-process that:
-
-  1. Spawns the original argv as a child (it gets the inherited
-     TTY, so claude's stdin/stdout/stderr work unchanged).
-  2. On startup + every host SIGWINCH, reads the host terminal
-     size via TIOCGWINSZ on stdin (or stderr if stdin isn't a
-     TTY — tmux respawn-pane gives us a TTY on stdout/stderr)
-     and pushes it into the VM with a side-channel
-     `smolvm machine exec -- sh -c 'for f in /dev/pts/*; do
-     stty -F $f cols X rows Y; done'`. The kernel delivers
-     SIGWINCH to the foreground process group on the slave end
-     automatically, so claude picks up the new size without
-     extra signalling.
-  3. Waits on the child and exits with its returncode.
-
-The dashboard's tmux pane respawn calls `bottle.agent_argv`
-which now prepends `[sys.executable, -m, ..., <machine>, --, ...]`
-to the smolvm argv. Foreground handoff (curses endwin →
-subprocess.run) goes through the same path so behavior is
-identical.
-
-Removable once smolvm grows native SIGWINCH forwarding (upstream
-follow-up tracked separately)."""
-
-from __future__ import annotations
-
-import fcntl
-import signal
-import struct
-import subprocess
-import sys
-import termios
-import threading
-from types import FrameType
-
-
-# How long to wait after the main exec starts before pushing the
-# initial size. Concurrent `smolvm machine exec` invocations race
-# libkrun's per-exec OCI config write during the main exec's
-# bringup window; the side-channel firing immediately corrupts
-# `config.json` and the main exec dies with SIGKILL (rc=137) or
-# libkrun's "parse error: trailing garbage" depending on
-# scheduling. Two seconds is well past the bringup window on a
-# warm VM, well under the operator's "this is unresponsive"
-# threshold, and short enough that claude's initial render
-# almost always fires after the size has been set.
-_STARTUP_SYNC_DELAY_SEC = 2.0
-
-
-def _read_winsize() -> tuple[int, int] | None:
-    """Return `(rows, cols)` from whichever of stdin / stdout /
-    stderr is a TTY, or None if none are. Different invocation
-    surfaces give us different TTYs:
-
-      - foreground handoff (curses endwin → subprocess.run): all
-        three are the operator's terminal.
-      - tmux respawn-pane: tmux sets all three to the pane's PTY.
-      - non-TTY (someone piped stdin in tests): none are; the
-        sync just no-ops, which is the right behavior."""
-    for stream in (sys.stdin, sys.stdout, sys.stderr):
-        try:
-            fd = stream.fileno()
-            data = fcntl.ioctl(fd, termios.TIOCGWINSZ, b"\x00" * 8)
-        except OSError:
-            continue
-        rows, cols, _, _ = struct.unpack("hhhh", data)
-        if rows > 0 and cols > 0:
-            return rows, cols
-    return None
-
-
-def _push_size(machine: str, rows: int, cols: int) -> None:
-    """Side-channel `smolvm machine exec` that sets the size of
-    every PTY in the VM. The shell `for` loop covers the case of
-    multiple concurrent interactive sessions (rare but cheap to
-    handle); `stty -F` returns silently on PTYs that don't apply.
-
-    Best-effort: swallow failures. A failed resize doesn't break
-    the session — it just leaves the in-VM PTY at its old size.
-
-    `stdin=DEVNULL` is load-bearing: under tmux, inheriting the
-    pane PTY here means two concurrent smolvm processes (this one
-    and the agent session the wrapper is shepherding) share the
-    PTY's foreground-process-group / input plumbing, and smolvm
-    bails with an internal config-parse error or SIGKILL within
-    ~100ms of the side-channel firing. Outside tmux the same
-    pattern survived, presumably because iTerm's PTY plumbing is
-    more forgiving than tmux's, but the DEVNULL is the right
-    default either way — the side-channel never needs stdin."""
-    subprocess.run(
-        ["smolvm", "machine", "exec", "--name", machine, "--",
-         "sh", "-c",
-         f"for f in /dev/pts/*; do "
-         f"stty -F \"$f\" cols {cols} rows {rows} 2>/dev/null; "
-         f"done"],
-        stdin=subprocess.DEVNULL,
-        stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL,
-        check=False,
-    )
-
-
-def main(argv: list[str]) -> int:
-    """Entry point. `argv` shape: `<machine> -- <smolvm-argv...>`.
-
-    We don't use argparse — the `--` separator is the contract and
-    everything past it is forwarded verbatim. Keeps the wrapper
-    transparent for callers building argv programmatically."""
-    if len(argv) < 3 or argv[1] != "--":
-        sys.stderr.write(
-            "usage: python -m bot_bottle.backend.smolmachines.pty_resize "
-            "<machine> -- <smolvm-argv...>\n"
-        )
-        return 2
-    machine = argv[0]
-    inner = argv[2:]
-
-    def sync(_signum: int | None = None, _frame: FrameType | None = None) -> None:
-        size = _read_winsize()
-        if size is None:
-            return
-        _push_size(machine, *size)
-
-    signal.signal(signal.SIGWINCH, sync)  # type: ignore[arg-type]
-
-    proc = subprocess.Popen(inner)
-    # Initial sync is deferred — see _STARTUP_SYNC_DELAY_SEC.
-    # daemon=True so the timer doesn't block exit when the child
-    # finishes before the delay elapses.
-    timer = threading.Timer(_STARTUP_SYNC_DELAY_SEC, sync)
-    timer.daemon = True
-    timer.start()
-    while True:
-        try:
-            return proc.wait()
-        except KeyboardInterrupt:
-            proc.send_signal(signal.SIGINT)
-
-
-if __name__ == "__main__":
-    sys.exit(main(sys.argv[1:]))

bot_bottle/backend/smolmachines/sidecar_bundle.py

@@ -1,242 +0,0 @@
-"""Per-bottle sidecar bundle bringup for the smolmachines backend
-(PRD 0023).
-
-Two docker resources per bottle live here:
-
-  - **A dedicated bridge network**, subnet derived from the slug.
-    The bundle container gets a pinned IP at `<subnet>.2` so the
-    smolvm guest's TSI allowlist (`<bundle-ip>/32`) has a stable
-    target. Without pinning, we'd have to inspect the container's
-    assigned IP after start and feed it back into the Smolfile
-    — a race we can sidestep with `--ip`.
-
-  - **The bundle container itself**, running the PRD 0024 bundle
-    image (`bot-bottle-sidecars:latest` by default). Same
-    image, same daemons, same daemon-private env / bind-mounts
-    as the docker backend.
-
-This module ships the lifecycle primitives only — create
-network, start bundle, stop bundle, remove network — wrapped
-around `subprocess.run(["docker", ...])`. Wiring them into the
-launch flow + populating the `BundleLaunchSpec` from the inner
-Plans (EgressPlan, …) lands in chunk 2d."""
-
-from __future__ import annotations
-
-import subprocess
-from dataclasses import dataclass, field
-from pathlib import Path
-from typing import Sequence
-
-from ...log import die, warn
-from ..docker import util as docker_mod
-from ..docker.sidecar_bundle import (
-    SIDECAR_BUNDLE_DOCKERFILE,
-    SIDECAR_BUNDLE_IMAGE,
-)
-
-
-_REPO_DIR = str(Path(__file__).resolve().parent.parent.parent.parent)
-
-
-def bundle_network_name(slug: str) -> str:
-    """`bot-bottle-bundle-<slug>` — distinct from the docker
-    backend's `bot-bottle-net-<slug>` so a smolmachines bottle
-    and a docker bottle for the same agent don't collide on
-    network name."""
-    return f"bot-bottle-bundle-{slug}"
-
-
-def bundle_container_name(slug: str) -> str:
-    """`bot-bottle-sidecars-<slug>` — same name shape the docker
-    backend uses for the bundle (PRD 0024 chunk 5). The dashboard's
-    prefix-based discovery covers both backends with one filter."""
-    return f"bot-bottle-sidecars-{slug}"
-
-
-@dataclass(frozen=True)
-class BundleLaunchSpec:
-    """Everything `start_bundle` needs to bring up one bundle
-    container. Populated by chunk-2d's launch flow from the inner
-    Plans the prepare step already produces."""
-
-    slug: str
-    network_name: str
-    subnet: str
-    gateway: str
-    bundle_ip: str
-    image: str = SIDECAR_BUNDLE_IMAGE
-    # Daemon subset CSV for BOT_BOTTLE_SIDECAR_DAEMONS. The
-    # supervisor inside the bundle reads it to skip
-    # bottle-irrelevant daemons (e.g. supervise=False bottles).
-    daemons_csv: str = "egress"
-    # Plain "KEY=VALUE" strings + "KEY" bare names (the bare-name
-    # form inherits the value from the docker-run subprocess env,
-    # matching the docker backend's compose-up secret-forwarding
-    # pattern).
-    environment: Sequence[str] = field(default_factory=tuple)
-    # (host_path, container_path, read_only) bind mounts.
-    volumes: Sequence[tuple[str, str, bool]] = field(default_factory=tuple)
-    # Container ports to publish on `publish_host_ip`, random
-    # host-side port per entry. The smolvm guest's TSI talks via
-    # macOS networking, so docker container IPs (192.168.x.x in
-    # the daemon's bridge) aren't directly reachable from the
-    # guest — host-loopback port-forwards are. Egress's port
-    # is bundle-internal and never published.
-    ports_to_publish: Sequence[int] = field(default_factory=tuple)
-    # Loopback IP to bind published ports against. Per-bottle
-    # loopback aliases (`127.0.0.16` etc., added via sudo
-    # ifconfig lo0 alias) narrow the TSI allowlist so a bottle
-    # can't reach other bottles' (or other host services') ports
-    # via 127.0.0.1.
-    publish_host_ip: str = "127.0.0.1"
-
-
-def ensure_bundle_image(image: str = SIDECAR_BUNDLE_IMAGE) -> None:
-    """Build the sidecar bundle image before `docker run`.
-
-    The Docker backend gets this for free from compose's `build:`
-    stanza. smolmachines starts the bundle with plain `docker run`,
-    so without an explicit build a first launch tries to pull the
-    local-only `bot-bottle-sidecars:latest` tag from a registry.
-    """
-    docker_mod.build_image(
-        image,
-        _REPO_DIR,
-        dockerfile=SIDECAR_BUNDLE_DOCKERFILE,
-    )
-
-
-def create_bundle_network(network_name: str, subnet: str, gateway: str) -> None:
-    """`docker network create` with an explicit subnet + gateway
-    so the bundle's `--ip` lands on the address the Smolfile's
-    TSI allowlist points at. Idempotent on the caller's side —
-    `start_bundle` catches the "network exists" error and treats
-    it as success (chunk-2d teardown is paired with each create).
-    """
-    result = subprocess.run(
-        ["docker", "network", "create",
-         "--subnet", subnet, "--gateway", gateway,
-         network_name],
-        capture_output=True, text=True, check=False,
-    )
-    if result.returncode != 0:
-        # Already-exists is fine on a resume path; everything else
-        # is fatal — the bundle won't have an addressable network.
-        if "already exists" in (result.stderr or "").lower():
-            return
-        die(
-            f"docker network create {network_name} failed: "
-            f"{(result.stderr or '').strip()}"
-        )
-
-
-def remove_bundle_network(network_name: str) -> None:
-    """Idempotent: a missing network returns success."""
-    result = subprocess.run(
-        ["docker", "network", "rm", network_name],
-        capture_output=True, text=True, check=False,
-    )
-    if result.returncode == 0:
-        return
-    if "no such network" in (result.stderr or "").lower():
-        return
-    # Network with attached containers is the common non-fatal
-    # case during a partial teardown — warn but don't die.
-    warn(
-        f"docker network rm {network_name} failed: "
-        f"{(result.stderr or '').strip()}"
-    )
-
-
-def start_bundle(spec: BundleLaunchSpec, *,
-                 env: dict[str, str] | None = None) -> None:
-    """Bring the bundle container up on the per-bottle bridge with
-    the pinned IP. Argv is built deterministically from `spec`;
-    `env` is the host subprocess env (forwarded values for any
-    bare-name entries in `spec.environment`)."""
-    container = bundle_container_name(spec.slug)
-    argv = [
-        "docker", "run",
-        "--name", container,
-        "--detach",
-        "--rm",
-        "--network", spec.network_name,
-        "--ip", spec.bundle_ip,
-        "-e", f"BOT_BOTTLE_SIDECAR_DAEMONS={spec.daemons_csv}",
-    ]
-    for entry in spec.environment:
-        argv += ["-e", entry]
-    for host_path, container_path, read_only in spec.volumes:
-        suffix = ":ro" if read_only else ""
-        argv += ["-v", f"{host_path}:{container_path}{suffix}"]
-    # Loopback-only host port-forwards — the smolvm guest's TSI
-    # uses macOS networking, and macOS loopback is the only host
-    # surface that round-trips into Docker Desktop's daemon VM.
-    # Binds to the per-bottle alias so TSI's IP-only allowlist
-    # narrows reachability to this bottle's bundle only.
-    for port in spec.ports_to_publish:
-        argv += ["-p", f"{spec.publish_host_ip}::{port}"]
-    argv.append(spec.image)
-    result = subprocess.run(
-        argv, capture_output=True, text=True,
-        env=dict(env) if env is not None else None, check=False,
-    )
-    if result.returncode != 0:
-        die(
-            f"docker run for bundle {container} failed: "
-            f"{(result.stderr or '').strip()}"
-        )
-
-
-def bundle_host_port(
-    slug: str, container_port: int, *, host_ip: str = "127.0.0.1",
-) -> int:
-    """`docker port <bundle> <container_port>/tcp` → the random
-    host-side port docker assigned for the binding on `host_ip`.
-    Called after `start_bundle` on each container port listed in
-    `BundleLaunchSpec.ports_to_publish` so the launch step can
-    build the agent's HTTPS_PROXY / GIT_GATE / SUPERVISE URLs in
-    `<host_ip>:<host port>` form."""
-    container = bundle_container_name(slug)
-    result = subprocess.run(
-        ["docker", "port", container, f"{container_port}/tcp"],
-        capture_output=True, text=True, check=False,
-    )
-    if result.returncode != 0:
-        die(
-            f"docker port {container} {container_port}/tcp failed: "
-            f"{(result.stderr or '').strip() or '<no stderr>'}"
-        )
-    # Each line looks like `127.0.0.16:54321` — one per address
-    # family / host IP. Match on the expected host_ip prefix so
-    # bottles bound to per-bottle aliases pick the right line.
-    for raw in (result.stdout or "").splitlines():
-        line = raw.strip()
-        if line.startswith(f"{host_ip}:"):
-            _, _, port_str = line.rpartition(":")
-            try:
-                return int(port_str)
-            except ValueError:
-                die(f"unexpected `docker port` output: {line!r}")
-    die(
-        f"no port mapping on {host_ip} for {container} "
-        f"{container_port}/tcp; got: {(result.stdout or '').strip()!r}"
-    )
-
-
-def stop_bundle(slug: str) -> None:
-    """Idempotent: a missing container returns success."""
-    container = bundle_container_name(slug)
-    result = subprocess.run(
-        ["docker", "rm", "-f", container],
-        capture_output=True, text=True, check=False,
-    )
-    if result.returncode == 0:
-        return
-    if "no such container" in (result.stderr or "").lower():
-        return
-    warn(
-        f"docker rm -f {container} failed: "
-        f"{(result.stderr or '').strip()}"
-    )

bot_bottle/backend/smolmachines/smolvm.py

@@ -1,247 +0,0 @@
-"""Thin subprocess wrapper around the `smolvm` CLI (PRD 0023).
-
-One thin Python function per smolvm subcommand the launch flow
-needs. Two design choices worth flagging:
-
-  - **No daemon, no SDK.** smolvm 0.8.0 ships a `smolvm serve`
-    HTTP API as the long-term-clean integration target. The
-    project's stdlib-first ethos + the lower-overhead CLI calls
-    push v1 to shell out via `subprocess.run`. If a future
-    smolvm release makes `serve` mandatory (or significantly
-    faster), revisit.
-
-  - **Two return shapes.** `SmolvmRunResult` (returncode + stdout
-    + stderr captured) is returned by `machine_exec` because the
-    caller cares about the in-VM command's exit status, and by
-    test helpers that introspect output. The other calls
-    (`machine_start`, `machine_stop`, `pack_create`, etc.) raise
-    `SmolvmError` on non-zero exit — failure to start a VM is
-    fatal to the launch flow, not something callers want to
-    branch on.
-
-The wrapper is unit-tested with `subprocess.run` mocked; the
-integration smoke test (chunk 2d) exercises against a real
-smolvm binary."""
-
-from __future__ import annotations
-
-import shutil
-import subprocess
-import time
-from dataclasses import dataclass
-from pathlib import Path
-from typing import Mapping, Sequence
-
-
-
-_SMOLVM = "smolvm"
-
-
-@dataclass(frozen=True)
-class SmolvmRunResult:
-    """Captured result of an in-VM command. Mirrors the structure
-    `Bottle.exec` returns so callers can hand it straight through."""
-    returncode: int
-    stdout: str
-    stderr: str
-
-
-class SmolvmError(RuntimeError):
-    """Raised when a smolvm subprocess returns non-zero on a path
-    where the caller has no useful branch to take (start failed,
-    pack failed, etc.). Carries the captured stderr for the
-    operator-facing log line."""
-
-    def __init__(self, argv: Sequence[str], result: subprocess.CompletedProcess[str]):
-        self.argv = list(argv)
-        self.returncode = result.returncode
-        self.stdout = result.stdout
-        self.stderr = result.stderr
-        cmd = " ".join(self.argv)
-        super().__init__(
-            f"{cmd!r} failed (exit {result.returncode}): "
-            f"{(result.stderr or '').strip() or '<no stderr>'}"
-        )
-
-
-def _smolvm(*args: str, env: Mapping[str, str] | None = None,
-            check: bool = True) -> subprocess.CompletedProcess[str]:
-    """One subprocess call into the smolvm CLI. `check=True`
-    raises SmolvmError on non-zero; `check=False` returns the
-    CompletedProcess for the caller to inspect."""
-    argv = [_SMOLVM, *args]
-    result = subprocess.run(
-        argv,
-        capture_output=True,
-        text=True,
-        env=dict(env) if env is not None else None,
-        check=False,
-    )
-    if check and result.returncode != 0:
-        raise SmolvmError(argv, result)
-    return result
-
-
-# --- Pack ----------------------------------------------------------------
-
-
-def pack_create(image: str, output: Path) -> None:
-    """`smolvm pack create --image <image> -o <output>`. Converts
-    an OCI image into a self-contained `.smolmachine` artifact
-    smolvm can boot via `machine create --from`. Idempotent on the
-    smolvm side — re-running with the same image+output rebuilds
-    from layer cache."""
-    _smolvm("pack", "create", "--image", image, "-o", str(output))
-
-
-# --- Machine lifecycle ---------------------------------------------------
-
-
-def machine_create(
-    name: str,
-    *,
-    image: str | None = None,
-    from_path: Path | None = None,
-    allow_cidrs: Sequence[str] = (),
-    env: Mapping[str, str] | None = None,
-) -> None:
-    """`smolvm machine create NAME [--image IMG | --from PATH]
-    [--allow-cidr CIDR ...] [-e K=V ...]`. NAME is positional
-    (the CLI's exception to the `--name` pattern other
-    subcommands use).
-
-    `image` (registry ref like `alpine:latest`) and `from_path`
-    (a `.smolmachine` artifact) are mutually exclusive — one or
-    the other tells smolvm what to boot. The wrapper doesn't
-    enforce exclusivity; smolvm errors clearly enough.
-
-    `allow_cidrs` and `env` are passed as CLI flags instead of a
-    Smolfile because `--from` and `--smolfile` are themselves
-    mutually exclusive in smolvm 0.8.0 — and we want `--from`'s
-    no-pull-at-start property. The flag form gives the same
-    result without the Smolfile complication.
-
-    `--net` is sent explicitly when `allow_cidrs` is non-empty.
-    smolvm 0.8.0's docs say `--allow-cidr` implies `--net`, but
-    empirically the implication only fires when no `--from` is
-    set — `--from PATH --allow-cidr X/32` silently produces a
-    machine with `network: false` and no routes in the guest, so
-    the agent can't reach the bundle's pinned IP."""
-    args: list[str] = ["machine", "create"]
-    if image is not None:
-        args += ["--image", image]
-    if from_path is not None:
-        args += ["--from", str(from_path)]
-    if allow_cidrs:
-        args.append("--net")
-    for cidr in allow_cidrs:
-        args += ["--allow-cidr", cidr]
-    if env:
-        for k, v in env.items():
-            args += ["-e", f"{k}={v}"]
-    args.append(name)
-    _smolvm(*args)
-
-
-def machine_start(name: str) -> None:
-    """`smolvm machine start --name NAME`."""
-    _smolvm("machine", "start", "--name", name)
-
-
-def machine_stop(name: str) -> None:
-    """`smolvm machine stop --name NAME`. Idempotent against
-    already-stopped machines: smolvm prints a notice and exits 0
-    in that case, so no special handling here."""
-    _smolvm("machine", "stop", "--name", name)
-
-
-def machine_delete(name: str) -> None:
-    """`smolvm machine delete -f NAME`. NAME is positional. `-f`
-    skips the interactive confirmation — required for
-    non-interactive teardown."""
-    _smolvm("machine", "delete", "-f", name)
-
-
-def machine_exec(
-    name: str,
-    argv: Sequence[str],
-    *,
-    env: Mapping[str, str] | None = None,
-    workdir: str | None = None,
-    timeout: str | None = None,
-) -> SmolvmRunResult:
-    """`smolvm machine exec --name NAME [-w DIR] [--timeout DUR]
-    [-e K=V ...] -- ARGV...`. Returns the captured result rather
-    than raising — callers (including `Bottle.exec`) care about
-    the in-VM command's exit code, not just whether smolvm ran.
-
-    `env` here is in-VM env vars (`-e K=V`), not the host
-    subprocess env — smolvm's own argv carries them through the
-    VMM."""
-    flags: list[str] = ["machine", "exec", "--name", name]
-    if workdir is not None:
-        flags += ["-w", workdir]
-    if timeout is not None:
-        flags += ["--timeout", timeout]
-    if env:
-        for k, v in env.items():
-            flags += ["-e", f"{k}={v}"]
-    # `--` separator before the command. smolvm's CLI requires it
-    # so its own flag parser doesn't grab argv items that look
-    # like flags.
-    flags.append("--")
-    flags += list(argv)
-    result = _smolvm(*flags, check=False)
-    return SmolvmRunResult(
-        returncode=result.returncode,
-        stdout=result.stdout or "",
-        stderr=result.stderr or "",
-    )
-
-
-def wait_exec_ready(name: str, *, timeout: float = 5.0) -> None:
-    """Poll `machine exec true` until exit 0 or `timeout` elapses.
-
-    Replaces `time.sleep(1.5)` after `machine_start`: libkrun's exec
-    channel needs a brief warm-up before back-to-back exec calls are
-    safe. Polling exits as soon as the channel is ready and fails
-    loudly if the VM never responds."""
-    deadline = time.monotonic() + timeout
-    delay = 0.1
-    while time.monotonic() < deadline:
-        r = machine_exec(name, ["true"])
-        if r.returncode == 0:
-            return
-        remaining = deadline - time.monotonic()
-        if remaining <= 0:
-            break
-        time.sleep(min(delay, remaining))
-        delay = min(delay * 2, 0.5)
-    argv = ["smolvm", "machine", "exec", "--name", name, "--", "true"]
-    raise SmolvmError(
-        argv,
-        subprocess.CompletedProcess(
-            args=argv, returncode=-1, stdout="",
-            stderr=f"exec channel not ready after {timeout:.0f}s — VM may have failed to boot.",
-        ),
-    )
-
-
-def machine_cp(src: str, dst: str) -> None:
-    """`smolvm machine cp SRC DST`. Path syntax: `machine:path` to
-    reference a path inside the VM, bare path for the host. Both
-    SRC and DST are positional; either side can be machine: or
-    bare. Empty path is a no-op (returns immediately without
-    invoking smolvm)."""
-    if not src or not dst:
-        return
-    _smolvm("machine", "cp", src, dst)
-
-
-# --- Discovery -----------------------------------------------------------
-
-
-def is_available() -> bool:
-    """True iff `smolvm` is on PATH. Used by the integration test
-    suite's skip-guards."""
-    return shutil.which(_SMOLVM) is not None

bot_bottle/backend/smolmachines/util.py

@@ -1,48 +0,0 @@
-"""Slug / preflight / subnet helpers for the smolmachines backend
-(PRD 0023). Kept in its own module so the renderers can be
-unit-tested without importing the docker subprocess paths."""
-
-from __future__ import annotations
-
-import hashlib
-import shutil
-
-from ...log import die
-
-
-def smolmachines_preflight() -> None:
-    """Ensure `smolvm` is on PATH before the launch flow runs.
-    Called from `_resolve_plan`; gives the operator a clear
-    install pointer rather than a cryptic FileNotFoundError
-    later. `gvproxy` is no longer required — see the PRD's design
-    pivot section."""
-    if shutil.which("smolvm") is not None:
-        return
-    die(
-        "BOT_BOTTLE_BACKEND=smolmachines requires `smolvm` on "
-        "PATH. Install with: "
-        "curl -sSL https://smolmachines.com/install.sh | sh"
-    )
-
-
-def smolmachines_bundle_subnet(slug: str) -> tuple[str, str, str]:
-    """Derive a per-bottle docker subnet + gateway IP + bundle IP
-    from the slug.
-
-    Returns `(subnet_cidr, gateway_ip, bundle_ip)`. The third
-    octet comes from SHA-256 of the slug mod 254 (skipping 17 to
-    avoid the docker-default bridge), so parallel bottles get
-    distinct /24s and `resume` reuses the same /24. The bundle
-    container always lands at `.2`; gateway is `.1`; the smolvm
-    Smolfile's `allow_cidrs` is `<bundle_ip>/32`."""
-    digest = hashlib.sha256(slug.encode("utf-8")).digest()
-    octet = (digest[0] % 254) + 1
-    # Skip the docker-default bridge to dodge the most common
-    # collision (operators with `docker0` at 172.17.x.x or a
-    # 192.168.17.x VPN client).
-    if octet == 17:
-        octet = 18
-    subnet = f"192.168.{octet}.0/24"
-    gateway = f"192.168.{octet}.1"
-    bundle_ip = f"192.168.{octet}.2"
-    return subnet, gateway, bundle_ip

bot_bottle/backend/terminal.py

@@ -0,0 +1,71 @@
+"""Terminal escape-sequence helpers shared across all bottle backends."""
+
+from __future__ import annotations
+
+import shlex
+
+
+# color name → (normal_idx, normal_hex, bright_idx, bright_hex, dark_bg_hex)
+# OSC 4 sets indexed palette entries (affects syntax-highlighted code and any
+# TUI content that uses indexed colors).  dark_bg_hex is used for OSC 11
+# (default background) — a very dark tint that's visible even when the TUI
+# uses true/24-bit colors for its own chrome, which would otherwise bypass
+# the palette entirely.
+_COLORS: dict[str, tuple[int, str, int, str, str]] = {
+    "red":     (9,  "#e74c3c", 1,  "#c0392b", "#200808"),
+    "green":   (10, "#2ecc71", 2,  "#27ae60", "#082008"),
+    "yellow":  (11, "#f1c40f", 3,  "#d4ac0d", "#201808"),
+    "blue":    (12, "#3498db", 4,  "#2471a3", "#080820"),
+    "magenta": (13, "#9b59b6", 5,  "#7d3c98", "#160820"),
+}
+
+# OSC 104 resets all indexed palette entries; OSC 111 resets default background.
+_RESET_PRINTF = "printf '\\033]104\\007\\033]111\\007'"
+
+
+def palette_printf(color: str) -> str:
+    """Shell `printf` command that emits OSC 4 + OSC 11 to tint the terminal
+    for *color*: sets the normal/bright palette entries AND the default
+    background to a dark shade of that color.  Returns '' if unknown."""
+    entry = _COLORS.get(color)
+    if not entry:
+        return ""
+    n_idx, n_hex, b_idx, b_hex, bg_hex = entry
+    seq = (
+        f"\\033]4;{n_idx};{n_hex}\\007"
+        f"\\033]4;{b_idx};{b_hex}\\007"
+        f"\\033]11;{bg_hex}\\007"
+    )
+    return f"printf '{seq}'"
+
+
+def exec_shell_script(
+    agent_argv: list[str],
+    terminal_title: str = "",
+    terminal_color: str = "",
+) -> str | None:
+    """Build a shell script string that optionally sets the terminal
+    title and/or palette before running *agent_argv*, and resets the
+    palette + background on exit. Returns None when no decoration is
+    needed — callers should run *agent_argv* directly in that case."""
+    title_cmd = (
+        f"printf '\\033]0;%s\\007' {shlex.quote(terminal_title)}"
+        if terminal_title else ""
+    )
+    pal_cmd = palette_printf(terminal_color)
+
+    if not title_cmd and not pal_cmd:
+        return None
+
+    parts: list[str] = []
+    if title_cmd:
+        parts.append(title_cmd)
+    if pal_cmd:
+        parts.append(pal_cmd)
+        parts.append(shlex.join(agent_argv))
+        parts.append(_RESET_PRINTF)
+    else:
+        # No palette change — exec so the agent replaces the shell.
+        parts.append(f"exec {shlex.join(agent_argv)}")
+
+    return "; ".join(parts)

bot_bottle/bottle_state.py

@@ -1,8 +1,7 @@
-"""Per-bottle persistent state (PRD 0016).
+"""Per-bottle persistent state.
 
-Holds the per-bottle Dockerfile override that capability-block
-remediation writes, the transcript snapshot the state-preservation
-helper saves before teardown, and the launch metadata that lets
+Holds optional per-bottle Dockerfile overrides, the transcript snapshot
+the state-preservation helper saves before teardown, and the launch metadata that lets
 `cli.py resume <identity>` reconstruct a bottle's spec. State
 lives at:
 
@@ -37,13 +36,13 @@ from dataclasses import dataclass
 from pathlib import Path
 from typing import cast
 
-from ... import supervise as _supervise
-from . import util as docker_mod
+from . import supervise as _supervise
 
 
 # Directory layout: ~/.bot-bottle/state/<identity>/...
 _STATE_SUBDIR = "state"
 _PER_BOTTLE_DOCKERFILE_NAME = "Dockerfile"
+_COMMITTED_IMAGE_NAME = "committed-image"
 _TRANSCRIPT_SUBDIR = "transcript"
 # Per-sidecar scratch subdirs. PRD 0018 chunk 2: bind-mount sources
 # live here so chunk 3's `docker compose up` can find them at stable
@@ -61,7 +60,7 @@ _METADATA_NAME = "metadata.json"
 _LIVE_CONFIG_SUBDIR = "live-config"
 LIVE_CONFIG_ROUTES_NAME = "routes.yaml"
 LIVE_CONFIG_ALLOWLIST_NAME = "allowlist"
-# Empty marker file. capability_apply writes it before teardown so
+# Empty marker file. Session preservation writes it before teardown so
 # cli.py's session-end cleanup knows to preserve the state dir for
 # `cli.py resume <identity>`. Absent = clean up.
 _PRESERVE_MARKER = ".preserve"
@@ -82,6 +81,7 @@ def bottle_identity(agent_name: str) -> str:
     To continue an existing bottle's state, use the recorded
     identity from BottleMetadata via `cli.py resume <identity>`,
     not this function."""
+    from .backend.docker import util as docker_mod
     slug = docker_mod.slugify(agent_name)
     suffix = "".join(secrets.choice(_SUFFIX_ALPHABET) for _ in range(_RANDOM_SUFFIX_LEN))
     return f"{slug}-{suffix}"
@@ -105,12 +105,16 @@ class BottleMetadata:
     # written before chunk 3 (resume / inspect should fall back to
     # deriving from identity in that case).
     compose_project: str = ""
-    # PRD 0040: backend name ("docker" or "smolmachines"). Empty string
-    # for state dirs written before PRD 0040; callers default to "docker"
-    # for backward compatibility.
+    # PRD 0040: backend name ("docker", "firecracker", "macos-container").
+    # Empty string for state dirs written before PRD 0040; callers default
+    # to "docker" for backward compatibility.
     backend: str = ""
     label: str = ""
     color: str = ""
+    # Ordered bottle names selected at launch (issue #269). Empty tuple
+    # for state dirs written before this change; resume falls back to
+    # the agent's `bottle:` field in that case.
+    bottle_names: tuple[str, ...] = ()
 
 
 def metadata_path(identity: str) -> Path:
@@ -138,6 +142,10 @@ def read_metadata(identity: str) -> BottleMetadata | None:
     if not isinstance(raw, dict):
         return None
     raw_typed = cast(dict[str, object], raw)
+    raw_bottle_names = raw_typed.get("bottle_names", [])
+    bottle_names: tuple[str, ...] = ()
+    if isinstance(raw_bottle_names, list):
+        bottle_names = tuple(str(n) for n in raw_bottle_names if isinstance(n, str))
     return BottleMetadata(
         identity=str(raw_typed.get("identity", identity)),
         agent_name=str(raw_typed.get("agent_name", "")),
@@ -148,6 +156,7 @@ def read_metadata(identity: str) -> BottleMetadata | None:
         backend=str(raw_typed.get("backend", "")),
         label=str(raw_typed.get("label", "")),
         color=str(raw_typed.get("color", "")),
+        bottle_names=bottle_names,
     )
 
 
@@ -163,8 +172,7 @@ def per_bottle_dockerfile_path(identity: str) -> Path:
 
 def per_bottle_dockerfile(identity: str) -> str | None:
     """Return the per-bottle Dockerfile content if present, else
-    None. None means: use the repo's Dockerfile (the original
-    pre-capability-block behavior)."""
+    None. None means: use the provider or manifest Dockerfile."""
     p = per_bottle_dockerfile_path(identity)
     if p.is_file():
         return p.read_text()
@@ -179,6 +187,32 @@ def write_per_bottle_dockerfile(identity: str, content: str) -> Path:
     return p
 
 
+def committed_image_path(identity: str) -> Path:
+    return bottle_state_dir(identity) / _COMMITTED_IMAGE_NAME
+
+
+def write_committed_image(identity: str, image_tag: str) -> Path:
+    """Persist the committed image tag for `identity`. The next
+    `cli.py resume <identity>` will boot from this image instead of
+    rebuilding from the Dockerfile."""
+    path = committed_image_path(identity)
+    path.parent.mkdir(parents=True, exist_ok=True)
+    path.write_text(image_tag.strip() + "\n")
+    path.chmod(0o644)
+    return path
+
+
+def read_committed_image(identity: str) -> str | None:
+    """Return the committed image tag for `identity`, or None if no
+    commit has been recorded. Used by the Docker launch step to skip
+    the Dockerfile build when a committed snapshot exists."""
+    path = committed_image_path(identity)
+    if not path.is_file():
+        return None
+    tag = path.read_text().strip()
+    return tag or None
+
+
 def per_bottle_image_tag(identity: str) -> str:
     """Image tag for a rebuilt bottle. Distinct from the base
     bot-bottle-claude:latest so per-bottle rebuilds don't collide in
@@ -222,9 +256,7 @@ def write_live_config(
 
 
 def transcript_snapshot_dir(identity: str) -> Path:
-    """Where capability_apply stashes the agent's transcript before
-    teardown, so the next `cli.py start <agent>` can offer to
-    resume from it."""
+    """Where agent session snapshots are kept for resume flows."""
     return bottle_state_dir(identity) / _TRANSCRIPT_SUBDIR
 
 
@@ -251,11 +283,9 @@ def git_gate_state_dir(identity: str) -> Path:
 
 
 def supervise_state_dir(identity: str) -> Path:
-    """State subdir for the supervise sidecar's current-config dir
-    (bind-mounted into the agent at /etc/bot-bottle/current-config).
-    The queue dir is intentionally NOT under here — it lives at
-    ~/.bot-bottle/queue/<slug>/ alongside the audit logs, so it
-    survives state-dir cleanup."""
+    """State subdir reserved for supervise sidecar bind-mount sources.
+    Runtime queue/audit rows live in the host-level bot-bottle SQLite
+    database, so they survive state-dir cleanup."""
     return bottle_state_dir(identity) / _SUPERVISE_SUBDIR
 
 
@@ -274,9 +304,8 @@ def preserve_marker_path(identity: str) -> Path:
 
 def mark_preserved(identity: str) -> Path:
     """Mark this bottle's state for preservation across session
-    teardown. Written by capability_apply.apply_capability_change so
-    cli.py's session-end cleanup leaves the state dir intact for a
-    subsequent `cli.py resume`."""
+    teardown so cli.py's session-end cleanup leaves the state dir
+    intact for a subsequent `cli.py resume`."""
     path = preserve_marker_path(identity)
     path.parent.mkdir(parents=True, exist_ok=True)
     path.touch()
@@ -289,7 +318,7 @@ def is_preserved(identity: str) -> bool:
 
 def clear_preserve_marker(identity: str) -> None:
     """Idempotent removal. Called at fresh launch (start or resume)
-    so a marker left from a prior capability-block doesn't keep
+    so a marker left from a prior preserved session doesn't keep
     state alive past the next normal session-end."""
     try:
         preserve_marker_path(identity).unlink()
@@ -314,6 +343,7 @@ __all__ = [
     "bottle_state_dir",
     "cleanup_state",
     "clear_preserve_marker",
+    "committed_image_path",
     "egress_state_dir",
     "git_gate_state_dir",
     "is_preserved",
@@ -323,9 +353,11 @@ __all__ = [
     "per_bottle_dockerfile_path",
     "per_bottle_image_tag",
     "preserve_marker_path",
+    "read_committed_image",
     "read_metadata",
     "supervise_state_dir",
     "transcript_snapshot_dir",
+    "write_committed_image",
     "write_metadata",
     "write_per_bottle_dockerfile",
 ]

bot_bottle/cli/__init__.py

@@ -1,17 +1,21 @@
 """Main CLI dispatcher.
 
-Commands: cleanup, edit, info, init, list, resume, start, supervise
+Commands: backend, cleanup, commit, edit, info, init, list, resume, start, supervise
 """
 
 from __future__ import annotations
 
 import sys
 
+from ..errors import MissingEnvVarError
 from ..log import Die, die, error
 from ..manifest import ManifestError
+from ..store_manager import StoreManager
 from ._common import PROG
 from . import list as _list_mod
+from .backend import cmd_backend
 from .cleanup import cmd_cleanup
+from .commit import cmd_commit
 from .edit import cmd_edit
 from .info import cmd_info
 from .init import cmd_init
@@ -22,7 +26,9 @@ from .supervise import cmd_supervise
 cmd_list = _list_mod.cmd_list
 
 COMMANDS = {
+    "backend": cmd_backend,
     "cleanup": cmd_cleanup,
+    "commit": cmd_commit,
     "edit": cmd_edit,
     "info": cmd_info,
     "init": cmd_init,
@@ -36,7 +42,9 @@ COMMANDS = {
 def usage() -> None:
     sys.stderr.write(f"usage: {PROG} <command> [args...]\n\n")
     sys.stderr.write("Commands:\n")
+    sys.stderr.write("  backend   set up / check / undo a backend's host prerequisites (setup|status|teardown)\n")
     sys.stderr.write("  cleanup   stop and remove all active bot-bottle containers\n")
+    sys.stderr.write("  commit    snapshot a running bottle's container state to a Docker image\n")
     sys.stderr.write("  edit      open an agent in vim for editing\n")
     sys.stderr.write("  info      print env, skills, and prompt details for a named agent\n")
     sys.stderr.write("  init      interactively create a new agent and add it to bot-bottle.json\n")
@@ -71,11 +79,25 @@ def main(argv: list[str] | None = None) -> int:
     if handler is None:
         usage()
         die(f"unknown command: {command}")
+    mgr = StoreManager.instance()
+    if not mgr.is_migrated():
+        sys.stderr.write("bot-bottle: database schema is out of date\n")
+        sys.stderr.write("Migrate now? [y/N] ")
+        sys.stderr.flush()
+        try:
+            answer = sys.stdin.readline().strip().lower()
+        except EOFError:
+            answer = ""
+        if answer != "y":
+            error("migration required — re-run and confirm to migrate")
+            return 1
+        mgr.migrate()
     try:
         return handler(rest) or 0
+    except MissingEnvVarError as e:
+        error(str(e))
+        return 1
     except ManifestError as e:
-        # Manifest/config problems surface as a catchable exception;
-        # print the reason and exit non-zero (same UX die() used to give).
         error(str(e))
         return 1
     except Die as e:

bot_bottle/cli/backend.py

@@ -0,0 +1,46 @@
+"""`backend` CLI command — generic host setup/status across backends.
+
+`./cli.py backend setup    [--backend=NAME]` provisions (or points at how
+to provision) the chosen backend's one-time host prerequisites.
+`./cli.py backend status   [--backend=NAME]` reports readiness.
+`./cli.py backend teardown [--backend=NAME]` undoes setup (uninstall).
+
+All dispatch to the backend's `setup()` / `status()` / `teardown()`
+classmethods, so there are no backend-specific commands — swapping
+backends is just a different `--backend` (or `$BOT_BOTTLE_BACKEND`, or
+the host default).
+"""
+
+from __future__ import annotations
+
+import argparse
+
+from ..backend import get_bottle_backend, known_backend_names
+from ._common import PROG
+
+
+def cmd_backend(args: list[str]) -> int:
+    parser = argparse.ArgumentParser(
+        prog=f"{PROG} backend",
+        description="Set up or check a backend's host prerequisites.",
+    )
+    parser.add_argument(
+        "action",
+        choices=("setup", "status", "teardown"),
+        help="setup: provision/print host prerequisites; status: report "
+             "readiness; teardown: undo setup (uninstall)",
+    )
+    parser.add_argument(
+        "--backend",
+        choices=known_backend_names(),
+        default=None,
+        help="backend to target (default: $BOT_BOTTLE_BACKEND or the host default)",
+    )
+    ns = parser.parse_args(args)
+
+    backend = get_bottle_backend(ns.backend)
+    if ns.action == "setup":
+        return backend.setup()
+    if ns.action == "teardown":
+        return backend.teardown()
+    return backend.status()

bot_bottle/cli/cleanup.py

@@ -1,21 +1,20 @@
 """cleanup: stop and remove all orphaned bot-bottle resources.
 
-Walks every registered backend (docker + smolmachines) so a single
-`./cli.py cleanup` reaps both backends' leftovers — orphaned
-smolvm machines won't survive a docker-only cleanup pass (issue
-addressed alongside #77).
+Walks every registered backend (docker, firecracker, macos-container)
+so a single `./cli.py cleanup` reaps every backend's leftovers — a
+firecracker bottle's sidecars won't survive a docker-only cleanup pass
+(issue addressed alongside #77).
 
 Each backend's `prepare_cleanup` enumerates its own resources;
 docker's `_list_orphan_state_dirs` consults
 `enumerate_active_agents()` for the union of live identities so
-state dirs of running smolmachines bottles aren't reaped. State
+state dirs of running non-docker bottles aren't reaped. State
 dirs are shared layout, so docker is the single owner of that
 bucket.
 
 State dirs with `.preserve` are intentionally never touched — they
-hold capability-block rebuilds or crash snapshots the operator may
-want to `resume`. Manual `rm -rf ~/.bot-bottle/state/<identity>`
-is the path for those.
+hold preserved sessions the operator may want to `resume`. Manual
+`rm -rf ~/.bot-bottle/state/<identity>` is the path for those.
 """
 
 from __future__ import annotations

bot_bottle/cli/commit.py

@@ -0,0 +1,53 @@
+"""commit: freeze a running bottle's state to a resumable artifact.
+
+Docker bottles are committed to a local Docker image. Macos-container
+bottles are exported and rebuilt as a local Apple Container image.
+Firecracker bottles stream the guest rootfs out over SSH and rebuild a
+local Docker image. The resulting reference is stored in per-bottle
+state so the next `./cli.py resume <slug>` boots from the snapshot
+instead of rebuilding from the Dockerfile.
+"""
+
+from __future__ import annotations
+
+import argparse
+
+from ..backend import enumerate_active_agents
+from ..backend.freeze import CommitCancelled, get_freezer
+from ..bottle_state import read_metadata
+from ..log import die
+from ._common import PROG
+from . import tui
+
+
+def cmd_commit(argv: list[str]) -> int:
+    parser = argparse.ArgumentParser(prog=f"{PROG} commit", add_help=True)
+    parser.add_argument(
+        "slug",
+        nargs="?",
+        default=None,
+        help=(
+            "bottle slug from `cli.py list active` "
+            "(omit to pick interactively)"
+        ),
+    )
+    args = parser.parse_args(argv)
+
+    slug = args.slug
+    if slug is None:
+        active = enumerate_active_agents()
+        if not active:
+            die("no active bottles; start one with `./cli.py start`")
+        choices = [a.slug for a in active]
+        slug = tui.filter_select(choices, title="Select bottle to commit")
+        if slug is None:
+            return 0
+
+    metadata = read_metadata(slug)
+    backend = metadata.backend if metadata else ""
+
+    try:
+        get_freezer(backend).commit_slug(slug)
+    except CommitCancelled:
+        return 0
+    return 0

bot_bottle/cli/info.py

@@ -5,7 +5,7 @@ from __future__ import annotations
 import argparse
 
 from ..log import info
-from ..manifest import Manifest
+from ..manifest import ManifestIndex
 from ._common import PROG, USER_CWD
 
 
@@ -14,11 +14,12 @@ def cmd_info(argv: list[str]) -> int:
     parser.add_argument("name", help="agent name defined in bot-bottle.json")
     args = parser.parse_args(argv)
 
-    manifest = Manifest.resolve(USER_CWD)
-    manifest.require_agent(args.name)
+    names = ManifestIndex.resolve(USER_CWD)
+    names.require_agent(args.name)
+    manifest = names.load_for_agent(args.name)
 
-    agent = manifest.agents[args.name]
-    bottle = manifest.bottle_for(args.name)
+    agent = manifest.agent
+    bottle = manifest.bottle
     env_names = list(bottle.env.keys())
     prompt_first_line = agent.prompt.splitlines()[0] if agent.prompt else ""
 
@@ -31,7 +32,7 @@ def cmd_info(argv: list[str]) -> int:
         f"first line: {prompt_first_line or '(empty)'}"
     )
     info(f"bottle             : {agent.bottle}")
-    identity = manifest.git_identity_summary(args.name)
+    identity = manifest.git_identity_summary()
     if identity:
         info(f"  git identity  : {identity}")
     if bottle.git:

bot_bottle/cli/list.py

@@ -7,26 +7,15 @@ import os
 import sys
 
 from ..backend import enumerate_active_agents
-from ..manifest import Manifest
+from ..manifest import ManifestIndex
 from ._common import PROG, USER_CWD
 
 _ANSI_COLOR_CODES: dict[str, str] = {
-    "black": "\033[30m",
-    "red": "\033[31m",
-    "green": "\033[32m",
-    "yellow": "\033[33m",
-    "blue": "\033[34m",
-    "magenta": "\033[35m",
-    "cyan": "\033[36m",
-    "white": "\033[37m",
-    "bright-black": "\033[90m",
-    "bright-red": "\033[91m",
-    "bright-green": "\033[92m",
-    "bright-yellow": "\033[93m",
-    "bright-blue": "\033[94m",
-    "bright-magenta": "\033[95m",
-    "bright-cyan": "\033[96m",
-    "bright-white": "\033[97m",
+    "red": "\033[91m",
+    "green": "\033[92m",
+    "yellow": "\033[93m",
+    "blue": "\033[94m",
+    "magenta": "\033[95m",
 }
 _ANSI_RESET = "\033[0m"
 
@@ -51,13 +40,14 @@ def cmd_list(argv: list[str]) -> int:
     args = parser.parse_args(argv)
 
     if args.scope == "available":
-        manifest = Manifest.resolve(USER_CWD)
-        for name in manifest.agents.keys():
+        manifest = ManifestIndex.resolve(USER_CWD)
+        for name in manifest.all_agent_names:
             print(name)
         return 0
 
-    # `active` enumerates every backend (docker + smolmachines)
-    # so smolmachines bottles aren't hidden behind the env var.
+    # `active` enumerates every backend (docker, firecracker,
+    # macos-container) so non-docker bottles aren't hidden behind
+    # the env var.
     active = enumerate_active_agents()
     if not active:
         print("no active bot-bottle bottles", file=sys.stderr)
@@ -66,7 +56,7 @@ def cmd_list(argv: list[str]) -> int:
     # Tab-separated keeps the format stable for shell pipelines.
     for b in active:
         services = ",".join(b.services) if b.services else "-"
-        display_name = b.label if b.label else b.agent_name
+        display_name = f"{b.label} ({b.agent_name})" if b.label else b.agent_name
         colored_name = _ansi_label(display_name, b.color)
         print(f"{b.backend_name}\t{b.slug}\t{colored_name}\t{services}")
     return 0

bot_bottle/cli/resume.py

@@ -4,13 +4,12 @@ Reads ~/.bot-bottle/state/<identity>/metadata.json to recover the
 (agent_name, cwd, copy_cwd) the bottle was originally started with,
 then runs the same launch core as `start` — but pinned to the
 recorded identity so the new bottle picks up any per-bottle Dockerfile
-(from capability-block apply) and transcript snapshot under the same
-state dir.
+override and transcript snapshot under the same state dir.
 
-Use case: an agent calls capability-block, the dashboard approves
-and tears down the bottle, the operator runs
+Use case: an interrupted or preserved bottle needs to be relaunched;
+the operator runs
     ./cli.py resume <identity>
-to bring up the replacement with the new capabilities baked in.
+to bring up the replacement from the recorded state.
 """
 
 from __future__ import annotations
@@ -18,9 +17,9 @@ from __future__ import annotations
 import argparse
 
 from ..backend import BottleSpec
-from ..backend.docker.bottle_state import read_metadata
+from ..bottle_state import read_metadata
 from ..log import die
-from ..manifest import Manifest
+from ..manifest import ManifestIndex
 from ._common import PROG, USER_CWD
 from .start import _launch_bottle
 
@@ -28,7 +27,6 @@ from .start import _launch_bottle
 def cmd_resume(argv: list[str]) -> int:
     parser = argparse.ArgumentParser(prog=f"{PROG} resume", add_help=True)
     parser.add_argument("--dry-run", action="store_true")
-    parser.add_argument("--remote-control", action="store_true")
     parser.add_argument(
         "identity",
         help="bottle identity from a prior `start` (see its session-end output)",
@@ -42,7 +40,7 @@ def cmd_resume(argv: list[str]) -> int:
             f"check ~/.bot-bottle/state/ or run `cli.py start` to create a new bottle"
         )
 
-    manifest = Manifest.resolve(USER_CWD)
+    manifest = ManifestIndex.resolve(USER_CWD)
     manifest.require_agent(metadata.agent_name)
 
     spec = BottleSpec(
@@ -51,11 +49,11 @@ def cmd_resume(argv: list[str]) -> int:
         copy_cwd=metadata.copy_cwd,
         user_cwd=metadata.cwd or USER_CWD,
         identity=metadata.identity,
+        bottle_names=tuple(metadata.bottle_names),
     )
     backend_name = metadata.backend or None
     return _launch_bottle(
         spec,
         dry_run=args.dry_run,
-        remote_control=args.remote_control,
         backend_name=backend_name,
     )

bot_bottle/cli/start.py

@@ -2,6 +2,11 @@
 interactive claude-code session. The container is torn down when the
 session ends.
 
+`--headless` selects a non-interactive launch (agent/bottles/label from
+flags, no TUI selectors, no y/N prompt) for orchestrators,
+CI, and webhook dispatch. The agent still execs on the inherited
+stdio/PTY, so an orchestrator that allocates the PTY drives the session.
+
 The launch core is shared with `cli.py resume <identity>` through
 the private orchestrator `_launch_bottle`.
 """
@@ -16,22 +21,23 @@ import tempfile
 from pathlib import Path
 from typing import Callable
 
-from ..agent_provider import runtime_for
+from ..agent_provider import get_provider, runtime_for
 from ..backend import (
     Bottle,
     BottleSpec,
+    enumerate_active_agents,
     get_bottle_backend,
     known_backend_names,
 )
+from ..backend.docker import util as docker_mod
 from ..backend.docker.bottle_plan import DockerBottlePlan
-from ..backend.docker.bottle_state import (
+from ..bottle_state import (
     cleanup_state,
     is_preserved,
     mark_preserved,
 )
-from ..backend.docker.capability_apply import snapshot_transcript
-from ..log import info
-from ..manifest import Manifest
+from ..log import info, die
+from ..manifest import Manifest, ManifestIndex
 from ._common import PROG, USER_CWD, read_tty_line
 from . import tui
 
@@ -39,17 +45,49 @@ from . import tui
 def cmd_start(argv: list[str]) -> int:
     parser = argparse.ArgumentParser(prog=f"{PROG} start", add_help=True)
     parser.add_argument("--dry-run", action="store_true")
-    parser.add_argument("--cwd", action="store_true", help="copy host cwd into a derived image")
-    parser.add_argument("--remote-control", action="store_true")
+    parser.add_argument("--cwd", action="store_true", help="copy host cwd into the running bottle")
     parser.add_argument(
         "--backend",
         choices=known_backend_names(),
         default=None,
         help=(
             "backend to launch the bottle on (default: $BOT_BOTTLE_BACKEND "
-            "or 'docker'). Overrides the env var when set."
+            "or host auto-selection). Overrides the env var when set."
         ),
     )
+    parser.add_argument(
+        "--headless",
+        action="store_true",
+        help=(
+            "non-interactive launch: take agent/bottles/label from flags, "
+            "skip all prompts. For orchestrators, CI, and webhooks."
+        ),
+    )
+    parser.add_argument(
+        "--bottle",
+        action="append",
+        default=None,
+        metavar="NAME",
+        help=(
+            "bottle to compose, repeatable (order = merge order). In "
+            "--headless, defaults to the agent's own bottle when omitted."
+        ),
+    )
+    parser.add_argument(
+        "--label",
+        default=None,
+        help="bottle label / terminal title (--headless default: agent name)",
+    )
+    parser.add_argument(
+        "--color",
+        default=None,
+        help="bottle color, one of the 16 ANSI color names (--headless default: none)",
+    )
+    parser.add_argument(
+        "--prompt",
+        default=None,
+        help="initial task prompt delivered to the agent (required with --headless)",
+    )
     parser.add_argument(
         "name",
         nargs="?",
@@ -60,27 +98,49 @@ def cmd_start(argv: list[str]) -> int:
 
     dry_run = args.dry_run or os.environ.get("BOT_BOTTLE_DRY_RUN") == "1"
 
-    manifest = Manifest.resolve(USER_CWD)
+    manifest = ManifestIndex.resolve(USER_CWD)
+    backend_name: str | None = args.backend
+
+    if args.headless:
+        return _start_headless(
+            manifest, args, dry_run=dry_run, backend_name=backend_name
+        )
 
     agent_name: str | None = args.name
     if agent_name is None:
+        if not manifest.all_agent_names:
+            print(
+                "bot-bottle: no agents defined. "
+                "Add an agent to ~/.bot-bottle/agents/ or ./bot-bottle/agents/ to get started.",
+                file=sys.stderr,
+            )
+            return 1
         agent_name = tui.filter_select(
-            sorted(manifest.agents.keys()),
+            manifest.all_agent_names,
             title="Select agent",
         )
         if agent_name is None:
             return 0
 
-    backend_name: str | None = args.backend
-    if backend_name is None and "BOT_BOTTLE_BACKEND" not in os.environ:
-        backend_name = tui.filter_select(
-            list(known_backend_names()),
-            title="Select backend",
-        )
-        if backend_name is None:
-            return 0
+    # Bottle multiselect: always show after agent selection so operators
+    # can compose bottles at launch time without editing agent manifests.
+    available_bottles = manifest.all_bottle_names
+    lineage_map = _bottle_lineage(manifest)
+    display_labels = [lineage_map.get(n, n) for n in available_bottles]
+    label_to_name = {lineage_map.get(n, n): n for n in available_bottles}
+    initial_bottle = _peek_agent_bottle(manifest, agent_name)
+    initial_labels = [lineage_map.get(initial_bottle, initial_bottle)] if initial_bottle else []
+    selected_labels = tui.filter_multiselect(
+        display_labels,
+        title="Select bottles",
+        initial=initial_labels,
+    )
+    if selected_labels is None:
+        return 0
+    bottle_names = tuple(label_to_name.get(lbl, lbl) for lbl in selected_labels)
 
     label, color = tui.name_color_modal(default_label=agent_name)
+    label, color = _resolve_unique_label(label, color)
 
     spec = BottleSpec(
         manifest=manifest,
@@ -89,15 +149,93 @@ def cmd_start(argv: list[str]) -> int:
         user_cwd=USER_CWD,
         label=label,
         color=color,
+        bottle_names=bottle_names,
     )
     return _launch_bottle(
         spec,
         dry_run=dry_run,
-        remote_control=args.remote_control,
         backend_name=backend_name,
     )
 
 
+# --- Headless launch -----------------------------------------------------
+
+
+def _start_headless(
+    manifest: ManifestIndex,
+    args: argparse.Namespace,
+    *,
+    dry_run: bool,
+    backend_name: str | None,
+) -> int:
+    """Non-interactive launch path for orchestrators / CI / webhooks.
+
+    Resolves agent, bottles, label, and color from flags + manifest
+    defaults instead of the TUI selectors, and auto-confirms the
+    preflight. Otherwise runs the same launch core as the interactive
+    path, so the agent still execs on the inherited stdio/PTY — an
+    orchestrator allocates that PTY and relays it to its
+    desktop/mobile clients."""
+    agent_name = args.name
+    if not agent_name:
+        die("--headless requires an agent name: ./cli.py start <agent> --headless")
+    manifest.require_agent(agent_name)  # raises ManifestError if unknown
+
+    prompt = args.prompt
+    if not prompt:
+        die(
+            "--headless requires --prompt: "
+            "./cli.py start <agent> --headless --prompt 'Do the thing'"
+        )
+
+    if args.bottle:
+        bottle_names: tuple[str, ...] = tuple(args.bottle)
+    else:
+        default_bottle = _peek_agent_bottle(manifest, agent_name)
+        if not default_bottle:
+            die(
+                f"--headless: agent '{agent_name}' has no default bottle; "
+                f"pass one or more --bottle NAME"
+            )
+        bottle_names = (default_bottle,)
+
+    label = _uniquify_label_headless(args.label or agent_name)
+
+    spec = BottleSpec(
+        manifest=manifest,
+        agent_name=agent_name,
+        copy_cwd=args.cwd,
+        user_cwd=USER_CWD,
+        label=label,
+        color=args.color or "",
+        bottle_names=bottle_names,
+        headless=True,
+    )
+    return _launch_bottle(
+        spec,
+        dry_run=dry_run,
+        backend_name=backend_name,
+        assume_yes=True,
+        headless_prompt_text=prompt,
+    )
+
+
+def _uniquify_label_headless(label: str) -> str:
+    """Non-interactive analog of `_resolve_unique_label`: if the label's
+    slug collides with a running bottle, append -2, -3, … until free,
+    logging the chosen label. Orchestrators fire-and-forget many bottles,
+    so silently picking a free name beats erroring on every collision."""
+    active_slugs = {a.slug for a in enumerate_active_agents()}
+    if docker_mod.slugify(label) not in active_slugs:
+        return label
+    n = 2
+    while docker_mod.slugify(f"{label}-{n}") in active_slugs:
+        n += 1
+    chosen = f"{label}-{n}"
+    info(f"label '{label}' already in use; using '{chosen}'")
+    return chosen
+
+
 # --- Launch helpers ------------------------------------------------------
 
 
@@ -105,7 +243,7 @@ def prepare_with_preflight(
     spec: BottleSpec,
     *,
     stage_dir: Path,
-    render_preflight: Callable[[DockerBottlePlan], None],
+    render_preflight: Callable[[DockerBottlePlan, str], None],
     prompt_yes: Callable[[], bool],
     dry_run: bool = False,
     backend_name: str | None = None,
@@ -114,8 +252,8 @@ def prepare_with_preflight(
     injected callable, prompt y/N via the injected callable.
 
     `backend_name` selects which backend prepares the plan
-    (`None` → `$BOT_BOTTLE_BACKEND` → `docker`). The CLI passes
-    whatever `--backend` resolved to.
+    (`None` → `$BOT_BOTTLE_BACKEND` → host auto-selection). The CLI
+    passes whatever `--backend` resolved to.
 
     Returns `(plan, identity)`. `plan` is None on dry-run or
     operator-N, but `identity` is set as soon as `backend.prepare`
@@ -126,7 +264,7 @@ def prepare_with_preflight(
     plan = backend.prepare(spec, stage_dir=stage_dir)
     identity = _identity_from_plan(plan)
 
-    render_preflight(plan)
+    render_preflight(plan, backend.name)
 
     if dry_run:
         info("dry-run requested; not starting container.")
@@ -138,8 +276,9 @@ def prepare_with_preflight(
 
 
 def attach_agent(
-    bottle: Bottle, *, remote_control: bool = False, resume: bool = False,
+    bottle: Bottle, *, resume: bool = False,
     agent_provider_template: str = "claude",
+    startup_args: tuple[str, ...] = (),
 ) -> int:
     """Run the selected provider CLI inside `bottle` as an
     interactive session. Blocks until the session ends; returns the
@@ -156,8 +295,7 @@ def attach_agent(
         "(Ctrl-D or 'exit' to leave; container will be removed)"
     )
     agent_args = list(runtime.bypass_args)
-    if remote_control:
-        agent_args.extend(runtime.remote_control_args)
+    agent_args.extend(startup_args)
     if resume:
         agent_args.extend(runtime.resume_args)
     return bottle.exec_agent(agent_args, tty=True)
@@ -172,7 +310,7 @@ def capture_claude_session_state(identity: str, exit_code: int) -> None:
     # instead of relying on each agent's transcript layout.
     if not identity:
         return
-    snapshot_transcript(identity)
+    # snapshot_transcript(identity)
     if exit_code != 0:
         mark_preserved(identity)
 
@@ -196,6 +334,53 @@ def _identity_from_plan(plan: object) -> str:
     return getattr(plan, "slug", "")
 
 
+def _peek_agent_bottle(manifest: ManifestIndex, agent_name: str) -> str:
+    """Return the `bottle:` value from the named agent's frontmatter without
+    fully parsing the agent file, or "" when absent or unreadable.
+
+    Used to pre-populate the bottle multiselect with the agent's default
+    bottle so operators who haven't removed `bottle:` from their manifests
+    don't need to re-select it every time."""
+    if manifest.home_md is None:
+        # Eager mode (from_json_obj): agent is pre-parsed.
+        if agent_name in manifest.agents:
+            return manifest.agents[agent_name].bottle
+        return ""
+
+    from ..manifest_loader import scan_agent_names
+    from ..yaml_subset import YamlSubsetError, parse_frontmatter
+
+    home_agents = scan_agent_names(manifest.home_md / "agents")
+    cwd_agents: dict[str, Path] = {}
+    if manifest.cwd_md is not None:
+        cwd_agents = scan_agent_names(manifest.cwd_md / "agents")
+    merged = {**home_agents, **cwd_agents}
+    path = merged.get(agent_name)
+    if path is None:
+        return ""
+    try:
+        fm, _ = parse_frontmatter(path.read_text())
+        bottle = fm.get("bottle", "")
+        return str(bottle) if isinstance(bottle, str) else ""
+    except (OSError, YamlSubsetError):
+        return ""
+
+
+def _resolve_unique_label(label: str, color: str) -> tuple[str, str]:
+    """Re-prompt with a disclaimer until the label's slug is not already
+    in use among running bottles.  Passes through unchanged when no
+    collision is found on the first check."""
+    while True:
+        slug_candidate = docker_mod.slugify(label)
+        active_slugs = {a.slug for a in enumerate_active_agents()}
+        if slug_candidate not in active_slugs:
+            return label, color
+        label, color = tui.name_color_modal(
+            default_label=label,
+            disclaimer=f'"{label}" is already in use',
+        )
+
+
 def _text_prompt_yes() -> bool:
     """Default `prompt_yes` for CLI use: reads y/N from the
     controlling tty via stderr prompt + tty-line read."""
@@ -205,30 +390,141 @@ def _text_prompt_yes() -> bool:
     return reply in ("y", "Y", "yes", "YES")
 
 
-def _text_render_preflight(*, remote_control: bool):
-    def _render(plan: DockerBottlePlan) -> None:
-        plan.print(remote_control=remote_control)
+def _text_render_preflight():
+    def _render(plan: DockerBottlePlan, backend_name: str) -> None:
+        print(file=sys.stderr)
+        print(f"backend: {backend_name}", file=sys.stderr)
+        print(_manifest_to_yaml(plan.manifest), file=sys.stderr)
     return _render
 
 
+def _bottle_lineage(manifest: ManifestIndex) -> dict[str, str]:
+    """Return {bottle_name: lineage_label} for bottles that have an extends chain.
+
+    Bottles without a parent are omitted (the caller falls back to the bare name).
+    Labels show the chain root-first: e.g. 'dev -> bot-bottle-dev -> claude-dev'."""
+    if manifest.home_md is None:
+        return {}
+    bottles_dir = manifest.home_md / "bottles"
+    if not bottles_dir.is_dir():
+        return {}
+
+    from ..yaml_subset import YamlSubsetError, parse_frontmatter
+
+    extends_of: dict[str, str] = {}
+    for path in bottles_dir.glob("*.md"):
+        try:
+            fm, _ = parse_frontmatter(path.read_text())
+            parent = fm.get("extends", "")
+            if isinstance(parent, str) and parent:
+                extends_of[path.stem] = parent
+        except (OSError, YamlSubsetError):
+            pass
+
+    labels: dict[str, str] = {}
+    for name in extends_of:
+        chain = [name]
+        seen = {name}
+        cur = name
+        while cur in extends_of:
+            par = extends_of[cur]
+            if par in seen:
+                break
+            chain.append(par)
+            seen.add(par)
+            cur = par
+        labels[name] = " -> ".join(reversed(chain))
+
+    return labels
+
+
+def _manifest_to_yaml(manifest: Manifest) -> str:
+    """Serialize the resolved Manifest to a YAML string for preflight display."""
+    lines: list[str] = []
+
+    agent = manifest.agent
+    lines.append("agent:")
+    if agent.skills:
+        lines.append("  skills:")
+        for s in agent.skills:
+            lines.append(f"    - {s}")
+    if not agent.git_user.is_empty():
+        lines.append("  git-gate:")
+        lines.append("    user:")
+        if agent.git_user.name:
+            lines.append(f"      name: {agent.git_user.name}")
+        if agent.git_user.email:
+            lines.append(f"      email: {agent.git_user.email}")
+
+    bottle = manifest.bottle
+    lines.append("bottle:")
+
+    if bottle.agent_provider.template != "claude" or bottle.agent_provider.dockerfile:
+        lines.append("  agent_provider:")
+        lines.append(f"    template: {bottle.agent_provider.template}")
+        if bottle.agent_provider.dockerfile:
+            lines.append(f"    dockerfile: {bottle.agent_provider.dockerfile}")
+
+    if bottle.env:
+        lines.append("  env:")
+        for k, v in sorted(bottle.env.items()):
+            lines.append(f"    {k}: {v}")
+
+    has_git_gate = not bottle.git_user.is_empty() or bottle.git
+    if has_git_gate:
+        lines.append("  git-gate:")
+        if not bottle.git_user.is_empty():
+            lines.append("    user:")
+            if bottle.git_user.name:
+                lines.append(f"      name: {bottle.git_user.name}")
+            if bottle.git_user.email:
+                lines.append(f"      email: {bottle.git_user.email}")
+        if bottle.git:
+            lines.append("    repos:")
+            for entry in bottle.git:
+                lines.append(f"      {entry.Name}:")
+                lines.append(f"        url: {entry.Upstream}")
+
+    if bottle.egress.routes:
+        lines.append("  egress:")
+        lines.append("    routes:")
+        for r in bottle.egress.routes:
+            lines.append(f"      - host: {r.Host}")
+            if r.AuthScheme:
+                lines.append(f"        auth:")
+                lines.append(f"          scheme: {r.AuthScheme}")
+
+    lines.append(f"  supervise: {'true' if bottle.supervise else 'false'}")
+
+    return "\n".join(lines)
+
+
 def _launch_bottle(
     spec: BottleSpec,
     *,
     dry_run: bool,
-    remote_control: bool,
     backend_name: str | None = None,
+    assume_yes: bool = False,
+    headless_prompt_text: str = "",
 ) -> int:
     """Shared launch core for `start` and `resume`. Builds the plan,
     prints / dry-runs / prompts as appropriate, brings the bottle up,
-    attaches claude, and prints the resume hint on session end."""
+    attaches claude, and prints the resume hint on session end.
+
+    `assume_yes` skips the interactive y/N confirmation (headless /
+    orchestrator launches), where there is no human at the prompt.
+
+    `headless_prompt_text` is passed to the provider's `headless_prompt`
+    method and the resulting args are appended to startup_args so the
+    agent receives the initial task without interactive input."""
     stage_dir = Path(tempfile.mkdtemp(prefix="bot-bottle-stage."))
     identity = ""
     try:
         plan, identity = prepare_with_preflight(
             spec,
             stage_dir=stage_dir,
-            render_preflight=_text_render_preflight(remote_control=remote_control),
-            prompt_yes=_text_prompt_yes,
+            render_preflight=_text_render_preflight(),
+            prompt_yes=(lambda: True) if assume_yes else _text_prompt_yes,
             dry_run=dry_run,
             backend_name=backend_name,
         )
@@ -238,10 +534,17 @@ def _launch_bottle(
         backend = get_bottle_backend(backend_name)
         with backend.launch(plan) as bottle:
             agent_provider_template = getattr(plan, "agent_provider_template", "claude")
+            extra_args: tuple[str, ...] = ()
+            if headless_prompt_text:
+                extra_args = tuple(
+                    get_provider(agent_provider_template).headless_prompt(
+                        headless_prompt_text
+                    )
+                )
             exit_code = attach_agent(
                 bottle,
-                remote_control=remote_control,
                 agent_provider_template=agent_provider_template,
+                startup_args=plan.agent_provision.startup_args + extra_args,
             )
             info(
                 f"session ended (exit {exit_code}); "
@@ -249,12 +552,8 @@ def _launch_bottle(
             )
             # While the container is still alive: always snapshot the
             # transcript and — if the agent exited non-zero — mark
-            # the state for preservation. Capability-block already
-            # did both before triggering teardown from the dashboard;
-            # this picks up crashes / Ctrl-Cs / OOM kills the same
-            # way. snapshot_transcript is best-effort so the
-            # capability-block path's prior snapshot isn't clobbered
-            # when the container is already gone.
+            # the state for preservation. This picks up crashes /
+            # Ctrl-Cs / OOM kills before cleanup removes the state dir.
             if agent_provider_template == "claude":
                 capture_claude_session_state(identity, exit_code)
         return 0

bot_bottle/cli/supervise.py

@@ -2,8 +2,8 @@
 act on them (approve / modify / reject).
 
 Curses-based TUI; modify-then-approve shells out to $EDITOR. The
-approval handler wires to PRD 0016 (capability-block), which rebuilds
-the bottle Dockerfile. The egress-block tool was removed in issue #198.
+Egress proposals are queued for operator review as full routes.yaml
+updates.
 """
 
 from __future__ import annotations
@@ -20,12 +20,16 @@ from datetime import datetime, timezone
 from pathlib import Path
 
 from .. import supervise as _supervise
-from ..backend.docker.bottle_state import read_metadata
-from ..backend.docker.capability_apply import (
-    CapabilityApplyError,
-    apply_capability_change,
+from ..bottle_state import read_metadata
+from ..backend.docker.egress_apply import (
+    EgressApplyError,
+    applicator as _docker_applicator,
+)
+from ..backend.macos_container.egress_apply import (
+    applicator as _macos_applicator,
 )
 from ..log import Die, error, info
+
 from ..supervise import (
     COMPONENT_FOR_TOOL,
     AuditEntry,
@@ -34,9 +38,11 @@ from ..supervise import (
     STATUS_APPROVED,
     STATUS_MODIFIED,
     STATUS_REJECTED,
-    TOOL_CAPABILITY_BLOCK,
-    archive_proposal,
-    list_pending_proposals,
+    TOOL_EGRESS_ALLOW,
+    TOOL_EGRESS_BLOCK,
+    TOOL_GITLEAKS_ALLOW,
+    TOOL_EGRESS_TOKEN_ALLOW,
+    list_all_pending_proposals,
     render_diff,
     write_audit_entry,
     write_response,
@@ -46,32 +52,39 @@ from ._common import PROG
 
 _REFRESH_INTERVAL_MS = 1000
 
+# Proposal tools whose payload is a read-only report, not a file the operator
+# edits: modify is unavailable and approval requires a recorded reason for the
+# audit trail.
+_REPORT_ONLY_TOOLS: tuple[str, ...] = (TOOL_GITLEAKS_ALLOW, TOOL_EGRESS_TOKEN_ALLOW)
+
 
 @dataclass(frozen=True)
 class QueuedProposal:
-    """A pending proposal plus the queue dir it was found in."""
+    """A pending proposal from the supervise queue."""
 
     proposal: Proposal
-    queue_dir: Path
 
 
 # Errors any remediation engine may raise. Caught by the TUI key
 # handlers and surfaced in the status line so a failed apply keeps
 # the proposal pending rather than crashing curses.
-ApplyError = (CapabilityApplyError,)
+ApplyError = (EgressApplyError,)
+
+
+def apply_routes_change(slug: str, content: str) -> tuple[str, str]:
+    meta = read_metadata(slug)
+    backend = meta.backend if meta is not None else ""
+    if backend == "macos-container":
+        return _macos_applicator.apply_routes_change(slug, content)
+    return _docker_applicator.apply_routes_change(slug, content)
 
 
 def discover_pending() -> list[QueuedProposal]:
-    """Walk ~/.bot-bottle/queue/* and collect pending proposals."""
-    queue_root = _supervise.bot_bottle_root() / "queue"
-    if not queue_root.is_dir():
-        return []
-    out: list[QueuedProposal] = []
-    for slug_dir in sorted(queue_root.iterdir()):
-        if not slug_dir.is_dir():
-            continue
-        for proposal in list_pending_proposals(slug_dir):
-            out.append(QueuedProposal(proposal=proposal, queue_dir=slug_dir))
+    """Collect pending proposals across bottles."""
+    out = [
+        QueuedProposal(proposal=proposal)
+        for proposal in list_all_pending_proposals()
+    ]
     out.sort(key=lambda q: q.proposal.arrival_timestamp)
     return out
 
@@ -94,7 +107,6 @@ def _detail_lines(
         (f"tool: {p.tool}", 0),
         (f"id: {p.id}", 0),
         (f"arrived: {p.arrival_timestamp}", 0),
-        (f"queue: {qp.queue_dir}", 0),
         ("", 0),
         ("justification:", 0),
     ]
@@ -108,8 +120,10 @@ def _detail_lines(
 
 
 def _suffix_for_tool(tool: str) -> str:
-    if tool == TOOL_CAPABILITY_BLOCK:
-        return ".dockerfile"
+    if tool in (TOOL_EGRESS_ALLOW, TOOL_EGRESS_BLOCK):
+        return ".yaml"
+    if tool in (TOOL_GITLEAKS_ALLOW, TOOL_EGRESS_TOKEN_ALLOW):
+        return ".txt"
     return ".txt"
 
 
@@ -127,16 +141,10 @@ def approve(
     file_to_apply = final_file if final_file is not None else qp.proposal.proposed_file
 
     diff_before, diff_after = "", ""
-    if qp.proposal.tool == TOOL_CAPABILITY_BLOCK:
-        _meta = read_metadata(qp.proposal.bottle_slug)
-        if _meta is not None and not _meta.compose_project:
-            raise CapabilityApplyError(
-                "capability-block remediation is not supported for smolmachines "
-                "bottles. Reject this proposal or handle the capability change "
-                "manually, then restart the bottle."
-            )
-        diff_before, diff_after = apply_capability_change(
-            qp.proposal.bottle_slug, file_to_apply,
+    if qp.proposal.tool in (TOOL_EGRESS_ALLOW, TOOL_EGRESS_BLOCK):
+        diff_before, diff_after = apply_routes_change(
+            qp.proposal.bottle_slug,
+            file_to_apply,
         )
 
     response = Response(
@@ -145,14 +153,11 @@ def approve(
         notes=notes,
         final_file=final_file,
     )
-    write_response(qp.queue_dir, response)
+    write_response(qp.proposal.bottle_slug, response)
     _write_audit(
         qp, action=status, notes=notes,
         diff_before=diff_before, diff_after=diff_after,
     )
-    if qp.proposal.tool == TOOL_CAPABILITY_BLOCK:
-        archive_proposal(qp.queue_dir, qp.proposal.id)
-
 
 def reject(qp: QueuedProposal, *, reason: str) -> None:
     """Write a rejection response and an audit entry."""
@@ -162,10 +167,27 @@ def reject(qp: QueuedProposal, *, reason: str) -> None:
         notes=reason,
         final_file=None,
     )
-    write_response(qp.queue_dir, response)
+    write_response(qp.proposal.bottle_slug, response)
     _write_audit(qp, action=STATUS_REJECTED, notes=reason, diff_before="", diff_after="")
 
 
+def _approve_from_tui(
+    stdscr: "curses._CursesWindow",  # type: ignore
+    qp: QueuedProposal,
+    *,
+    final_file: str | None = None,
+    notes: str = "",
+) -> str:
+    """Approve from curses, prompting for any tool-specific audit note."""
+    if qp.proposal.tool in _REPORT_ONLY_TOOLS and final_file is None:
+        notes = _prompt(stdscr, "allow reason (false positive / legitimately needed): ")
+        if not notes:
+            return "approve aborted (empty reason)"
+    approve(qp, final_file=final_file, notes=notes)
+    verb = "modified+approved" if final_file is not None else "approved"
+    return _approval_status(qp, verb)
+
+
 def _write_audit(
     qp: QueuedProposal,
     *,
@@ -237,7 +259,10 @@ def cmd_supervise(argv: list[str]) -> int:
         return e.code if isinstance(e.code, int) else 1
     except Exception as e:  # noqa: W0718 — catch supervise crash for logging
         log_path = _write_crash_log(e)
-        error(f"supervise crashed: {type(e).__name__}: {e}")
+        error(
+            f"supervise crashed: {type(e).__name__}: {e}",
+            context={"error_type": type(e).__name__, "crash_log": str(log_path)},
+        )
         error(f"full traceback written to {log_path}")
         return 1
     return 0
@@ -282,7 +307,7 @@ def _list_once() -> int:
     return 0
 
 
-def _try_init_green() -> int:
+def _try_init_green() -> int:  # pragma: no cover
     """Initialise a green color pair and return its attr, or 0."""
     try:
         curses.start_color()
@@ -293,7 +318,7 @@ def _try_init_green() -> int:
         return 0
 
 
-def _main_loop(stdscr: "curses._CursesWindow") -> None:  # type: ignore
+def _main_loop(stdscr: "curses._CursesWindow") -> None:  # type: ignore  # pragma: no cover
     curses.curs_set(0)
     stdscr.timeout(_REFRESH_INTERVAL_MS)
     green_attr = _try_init_green()
@@ -349,18 +374,22 @@ def _main_loop(stdscr: "curses._CursesWindow") -> None:  # type: ignore
             _detail_view(stdscr, qp, green_attr=green_attr)
         elif key == ord("a"):
             try:
-                approve(qp)
-                status_line = _approval_status(qp, "approved")
+                status_line = _approve_from_tui(stdscr, qp)
             except ApplyError as e:
                 status_line = f"apply failed: {e}"
         elif key == ord("m"):
+            if qp.proposal.tool in _REPORT_ONLY_TOOLS:
+                status_line = f"modify unavailable for {qp.proposal.tool}"
+                continue
             edited = _modify(stdscr, qp)
             if edited is None:
                 status_line = "modify aborted (no change)"
             else:
                 try:
-                    approve(qp, final_file=edited, notes="operator modified before approving")
-                    status_line = _approval_status(qp, "modified+approved")
+                    status_line = _approve_from_tui(
+                        stdscr, qp, final_file=edited,
+                        notes="operator modified before approving",
+                    )
                 except ApplyError as e:
                     status_line = f"apply failed: {e}"
         elif key == ord("r"):
@@ -379,7 +408,7 @@ def _render(
     status_line: str,
     *,
     green_attr: int = 0,  # noqa: F841 — unused, but required by interface
-) -> None:
+) -> None:  # pragma: no cover
     stdscr.erase()
     h, w = stdscr.getmaxyx()
     header = f"bot-bottle supervise  ({len(pending)} pending)"
@@ -430,7 +459,7 @@ def _detail_view(
     qp: QueuedProposal,
     *,
     green_attr: int = 0,
-) -> None:
+) -> None:  # pragma: no cover
     """Render the full proposal. Scrollable. Press q to return."""
     lines = _detail_lines(qp, green_attr=green_attr)
     offset = 0
@@ -458,15 +487,20 @@ def _detail_view(
             offset = max(0, len(lines) - 1)
         elif key == ord("a"):
             try:
-                approve(qp)
+                _approve_from_tui(stdscr, qp)
             except ApplyError:
                 pass
             return
         elif key == ord("m"):
+            if qp.proposal.tool in _REPORT_ONLY_TOOLS:
+                return
             edited = _modify(stdscr, qp)
             if edited is not None:
                 try:
-                    approve(qp, final_file=edited, notes="operator modified before approving")
+                    _approve_from_tui(
+                        stdscr, qp, final_file=edited,
+                        notes="operator modified before approving",
+                    )
                 except ApplyError:
                     pass
             return
@@ -477,7 +511,7 @@ def _detail_view(
             return
 
 
-def _modify(stdscr: "curses._CursesWindow", qp: QueuedProposal) -> str | None:  # type: ignore
+def _modify(stdscr: "curses._CursesWindow", qp: QueuedProposal) -> str | None:  # type: ignore  # pragma: no cover
     """Suspend curses, open $EDITOR on the proposed file, return edited content."""
     suffix = _suffix_for_tool(qp.proposal.tool)
     curses.endwin()
@@ -488,7 +522,7 @@ def _modify(stdscr: "curses._CursesWindow", qp: QueuedProposal) -> str | None:
     return edited
 
 
-def _prompt(stdscr: "curses._CursesWindow", label: str) -> str:  # type: ignore
+def _prompt(stdscr: "curses._CursesWindow", label: str) -> str:  # type: ignore  # pragma: no cover
     """One-line input at the bottom of the screen."""
     curses.curs_set(1)
     h, _ = stdscr.getmaxyx()

bot_bottle/cli/tui.py

@@ -17,6 +17,43 @@ import sys
 from typing import Any, Optional
 
 
+def filter_multiselect(
+    items: list[str],
+    *,
+    title: str = "",
+    initial: Optional[list[str]] = None,
+    tty_path: str = "/dev/tty",
+) -> Optional[list[str]]:
+    """Render a multi-select picker over *items*.
+
+    Returns the ordered list of selected items, or ``None`` if the user
+    cancelled (Esc / ``q`` / Ctrl-C / Ctrl-D with no items).
+
+    Press Space to toggle the item under the cursor.
+    Press Enter to confirm the current selection.
+    Press Ctrl-D to confirm the current selection (returns even if empty).
+    Press Esc/q to cancel (returns None).
+
+    *initial* pre-populates the selection in insertion order. Items
+    added are appended; removed items leave the remaining order unchanged.
+    """
+    if not items:
+        return []
+
+    try:
+        tty_fd = open(tty_path, "r+b", buffering=0)
+    except OSError:
+        return None
+
+    try:
+        fd_dup = os.dup(tty_fd.fileno())
+        return _run_multiselect(
+            items, title=title, initial=list(initial or []), tty_fd=fd_dup
+        )
+    finally:
+        tty_fd.close()
+
+
 def filter_select(
     items: list[str],
     *,
@@ -221,25 +258,283 @@ def _addstr_safe(screen: Any, row: int, col: int, text: str, attr: int = curses.
         pass
 
 
+# ---------------------------------------------------------------------------
+# filter_multiselect internals
+# ---------------------------------------------------------------------------
+
+_KEY_SPACE = 32
+
+
+def _run_multiselect(
+    items: list[str], *, title: str, initial: list[str], tty_fd: int
+) -> Optional[list[str]]:
+    """Drive a curses multi-select session on *tty_fd*."""
+    os.environ.setdefault("TERM", "xterm-256color")
+
+    orig_stdin = sys.__stdin__
+    orig_stdout = sys.__stdout__
+
+    try:
+        import io
+        tty_text = io.TextIOWrapper(io.FileIO(tty_fd, mode='r+'), write_through=True)
+        sys.__stdin__ = tty_text   # type: ignore[assignment]
+        sys.__stdout__ = tty_text  # type: ignore[assignment]
+
+        screen = curses.initscr()
+        curses.noecho()
+        curses.cbreak()
+        screen.keypad(True)
+
+        try:
+            result = _multiselect_loop(screen, items, title=title, initial=initial)
+        finally:
+            screen.keypad(False)
+            curses.nocbreak()
+            curses.echo()
+            curses.endwin()
+    except Exception:  # noqa: W0718
+        return None
+    finally:
+        sys.__stdin__ = orig_stdin    # type: ignore[assignment]
+        sys.__stdout__ = orig_stdout  # type: ignore[assignment]
+
+    return result
+
+
+def _toggle_membership(items: list[str], item: str) -> None:
+    """Add `item` if absent, remove it if present (in place)."""
+    if item in items:
+        items.remove(item)
+    else:
+        items.append(item)
+
+
+def _handle_order_key(key: int, selected: list[str], order_cursor: int) -> int:
+    """Apply a keypress in 'order' focus: navigate, reorder, or remove the
+    item at `order_cursor`. Mutates `selected` in place and returns the new
+    order cursor."""
+    if key in (curses.KEY_UP, ord("k")):
+        if order_cursor > 0:
+            order_cursor -= 1
+    elif key in (curses.KEY_DOWN, ord("j")):
+        if order_cursor < len(selected) - 1:
+            order_cursor += 1
+    elif key == ord("K"):
+        # Move selected item up (earlier in order).
+        if order_cursor > 0:
+            i = order_cursor
+            selected[i - 1], selected[i] = selected[i], selected[i - 1]
+            order_cursor -= 1
+    elif key == ord("J"):
+        # Move selected item down (later in order).
+        if order_cursor < len(selected) - 1:
+            i = order_cursor
+            selected[i], selected[i + 1] = selected[i + 1], selected[i]
+            order_cursor += 1
+    elif key in (curses.KEY_ENTER, _KEY_ENTER_ALT, ord("\r"), _KEY_SPACE):
+        # Remove item from selection while in order mode.
+        del selected[order_cursor]
+        if order_cursor >= len(selected) and order_cursor > 0:
+            order_cursor -= 1
+    return order_cursor
+
+
+def _multiselect_loop(
+    screen: Any, items: list[str], *, title: str, initial: list[str]
+) -> Optional[list[str]]:
+    query = ""
+    cursor = 0
+    selected: list[str] = [s for s in initial if s in items]
+    # focus = "filter": navigate + toggle items in the filterable list
+    # focus = "order":  navigate + reorder items in the selected list
+    focus = "filter"
+    order_cursor = 0
+
+    while True:
+        filtered = _filter_items(items, query)
+
+        if not filtered:
+            cursor = 0
+        elif cursor >= len(filtered):
+            cursor = len(filtered) - 1
+
+        if not selected:
+            order_cursor = 0
+            if focus == "order":
+                focus = "filter"
+        elif order_cursor >= len(selected):
+            order_cursor = len(selected) - 1
+
+        try:
+            _render_multiselect(
+                screen, filtered, cursor,
+                query=query, title=title, selected=selected,
+                focus=focus, order_cursor=order_cursor,
+            )
+        except curses.error:
+            return None
+
+        try:
+            key = screen.getch()
+        except KeyboardInterrupt:
+            return None
+
+        if key in (_KEY_ESC, _KEY_CTRL_C, ord("q")):
+            return None
+
+        if key == _KEY_CTRL_D:
+            return list(selected)
+
+        # Tab toggles between filter and order focus.
+        if key == ord("\t"):
+            if focus == "filter" and selected:
+                focus = "order"
+                order_cursor = 0
+            else:
+                focus = "filter"
+            continue
+
+        if focus == "filter":
+            if key in (curses.KEY_ENTER, _KEY_ENTER_ALT, ord("\r")):
+                return list(selected)
+
+            elif key == _KEY_SPACE:
+                if filtered:
+                    _toggle_membership(selected, filtered[cursor])
+
+            elif key in (curses.KEY_UP, ord("k")):
+                if cursor > 0:
+                    cursor -= 1
+
+            elif key in (curses.KEY_DOWN, ord("j")):
+                if cursor < len(filtered) - 1:
+                    cursor += 1
+
+            elif key in (curses.KEY_BACKSPACE, _KEY_BACKSPACE_WIN, 127):
+                query = query[:-1]
+                new_filtered = _filter_items(items, query)
+                if cursor >= len(new_filtered):
+                    cursor = max(0, len(new_filtered) - 1)
+
+            elif 32 <= key <= 126 and key != _KEY_SPACE:
+                query += chr(key)
+                cursor = 0
+
+        else:  # focus == "order"
+            order_cursor = _handle_order_key(key, selected, order_cursor)
+
+
+def _render_multiselect(
+    screen: Any,
+    filtered: list[str],
+    cursor: int,
+    *,
+    query: str,
+    title: str,
+    selected: list[str],
+    focus: str = "filter",
+    order_cursor: int = 0,
+) -> None:
+    screen.erase()
+    rows, cols = screen.getmaxyx()
+    min_rows = 7
+
+    if rows < min_rows:
+        raise curses.error("terminal too small")
+
+    sep = "─" * min(cols - 1, 40)
+    row = 0
+
+    if title and row < rows - 1:
+        _addstr_safe(screen, row, 0, title[:cols - 1], curses.A_BOLD)
+        row += 1
+
+    # Filter line — dim when focus is on the order panel.
+    filter_label = f"Filter: {query}"
+    filter_hint = "  [Tab: reorder]" if focus == "filter" and selected else ""
+    filter_attr = curses.A_DIM if focus == "order" else curses.A_NORMAL
+    if row < rows - 1:
+        _addstr_safe(screen, row, 0, (filter_label + filter_hint)[:cols - 1], filter_attr)
+        row += 1
+
+    if row < rows - 1:
+        _addstr_safe(screen, row, 0, sep)
+        row += 1
+
+    # Compute how many rows the bottom order panel needs.
+    # Cap the visible selected list to keep the filter list legible.
+    order_rows = min(len(selected), max(1, (rows - row) // 3)) if selected else 0
+    # Bottom reserved: sep + order_rows + sep + help = order_rows + 3
+    bottom_reserved = order_rows + 3
+
+    list_start = row
+    list_rows = rows - list_start - bottom_reserved
+    if list_rows < 1:
+        list_rows = 1
+
+    selected_set = set(selected)
+    filter_dim = focus == "order"
+    scroll = max(0, cursor - list_rows + 1)
+    visible = filtered[scroll: scroll + list_rows]
+
+    for idx, item in enumerate(visible):
+        abs_idx = scroll + idx
+        mark = "[*]" if item in selected_set else "[ ]"
+        prefix = "> " if (abs_idx == cursor and focus == "filter") else "  "
+        line = (prefix + mark + " " + item)[:cols - 1]
+        item_attr = curses.A_DIM if filter_dim else (
+            curses.A_REVERSE if abs_idx == cursor else curses.A_NORMAL
+        )
+        if row < rows - bottom_reserved:
+            _addstr_safe(screen, row, 0, line, item_attr)
+        row += 1
+
+    # Separator before the order panel.
+    if row < rows - (order_rows + 2):
+        _addstr_safe(screen, row, 0, sep)
+        row += 1
+
+    # Order panel.
+    order_scroll = max(0, order_cursor - order_rows + 1)
+    order_visible = selected[order_scroll: order_scroll + order_rows]
+    for idx, item in enumerate(order_visible):
+        abs_idx = order_scroll + idx
+        is_active = focus == "order" and abs_idx == order_cursor
+        prefix = "> " if is_active else "  "
+        line = (prefix + item)[:cols - 1]
+        attr = curses.A_REVERSE if is_active else curses.A_NORMAL
+        if row < rows - 2:
+            _addstr_safe(screen, row, 0, line, attr)
+        row += 1
+
+    if row < rows - 1:
+        _addstr_safe(screen, row, 0, sep)
+        row += 1
+
+    if focus == "filter":
+        help_line = "[↑↓/jk] move  [Space] toggle  [Enter] confirm  [Tab] reorder  [Esc/q] cancel"
+    else:
+        help_line = "[↑↓/jk] cursor  [K/J] reorder  [Space/Enter] remove  [Tab] back  [Ctrl-D] done"
+    if row < rows:
+        _addstr_safe(screen, min(rows - 1, row), 0, help_line[:cols - 1])
+
+    screen.refresh()
+
+
 # ---------------------------------------------------------------------------
 # name_color_modal — two-step label + color picker
 # ---------------------------------------------------------------------------
 
 _ANSI_COLORS = [
-    "red", "green", "blue", "yellow", "magenta", "cyan", "white", "black",
-    "bright-red", "bright-green", "bright-blue", "bright-yellow",
-    "bright-magenta", "bright-cyan", "bright-white", "bright-black",
+    "red", "green", "yellow", "blue", "magenta",
 ]
 
 _CURSES_COLOR_MAP: dict[str, int] = {
-    "black": curses.COLOR_BLACK,
     "red": curses.COLOR_RED,
     "green": curses.COLOR_GREEN,
     "yellow": curses.COLOR_YELLOW,
     "blue": curses.COLOR_BLUE,
     "magenta": curses.COLOR_MAGENTA,
-    "cyan": curses.COLOR_CYAN,
-    "white": curses.COLOR_WHITE,
 }
 
 _COLOR_NONE = "(none)"
@@ -248,11 +543,15 @@ _COLOR_NONE = "(none)"
 def name_color_modal(
     default_label: str,
     *,
+    disclaimer: str = "",
     tty_path: str = "/dev/tty",
 ) -> tuple[str, str]:
     """Present a two-step curses modal: first edit the agent label,
     then optionally pick a color.
 
+    ``disclaimer`` is shown below the input field — use it to surface
+    an error from a previous attempt (e.g. name already in use).
+
     Returns ``(label, color)`` where ``color`` is one of the 16 ANSI
     color name strings or ``""`` for no color. Falls back to
     ``(default_label, "")`` on any error (terminal too small, not a tty).
@@ -264,14 +563,14 @@ def name_color_modal(
 
     try:
         fd_dup = os.dup(tty_fd.fileno())
-        return _run_name_color(default_label, tty_fd=fd_dup)
+        return _run_name_color(default_label, tty_fd=fd_dup, disclaimer=disclaimer)
     except Exception:  # noqa: BLE001  # pylint: disable=broad-exception-caught
         return default_label, ""
     finally:
         tty_fd.close()
 
 
-def _run_name_color(default_label: str, *, tty_fd: int) -> tuple[str, str]:
+def _run_name_color(default_label: str, *, tty_fd: int, disclaimer: str = "") -> tuple[str, str]:
     import io
     orig_stdin = sys.__stdin__
     orig_stdout = sys.__stdout__
@@ -286,7 +585,7 @@ def _run_name_color(default_label: str, *, tty_fd: int) -> tuple[str, str]:
         curses.cbreak()
         screen.keypad(True)
         try:
-            label = _label_step(screen, default_label)
+            label = _label_step(screen, default_label, disclaimer=disclaimer)
             color = _color_step(screen, label)
         finally:
             screen.keypad(False)
@@ -299,14 +598,14 @@ def _run_name_color(default_label: str, *, tty_fd: int) -> tuple[str, str]:
     return label, color
 
 
-def _label_step(screen: Any, default_label: str) -> str:
+def _label_step(screen: Any, default_label: str, *, disclaimer: str = "") -> str:
     """Step 1: edit the label. First printable key replaces the
     pre-fill; subsequent keys append. Enter confirms."""
     text = default_label
     replaced = False  # True once the user has typed their first char
 
     while True:
-        _render_label(screen, text)
+        _render_label(screen, text, disclaimer=disclaimer)
         try:
             key = screen.getch()
         except KeyboardInterrupt:
@@ -330,7 +629,7 @@ def _label_step(screen: Any, default_label: str) -> str:
                 text += chr(key)
 
 
-def _render_label(screen: Any, text: str) -> None:
+def _render_label(screen: Any, text: str, *, disclaimer: str = "") -> None:
     screen.erase()
     rows, cols = screen.getmaxyx()
     sep = "─" * min(cols - 1, 40)
@@ -338,8 +637,12 @@ def _render_label(screen: Any, text: str) -> None:
     _addstr_safe(screen, 1, 0, sep)
     _addstr_safe(screen, 2, 0, text[:cols - 1], curses.A_REVERSE)
     _addstr_safe(screen, 3, 0, sep)
-    if rows > 5:
-        _addstr_safe(screen, 5, 0, "[any key] edit  [Enter] confirm", curses.A_DIM)
+    row = 4
+    if disclaimer and rows > row + 1:
+        _addstr_safe(screen, row, 0, disclaimer[:cols - 1], curses.A_BOLD)
+        row += 1
+    if rows > row + 1:
+        _addstr_safe(screen, row, 0, "[any key] edit  [Enter] confirm", curses.A_DIM)
     screen.refresh()
 
 
@@ -379,13 +682,10 @@ def _init_color_pairs() -> dict[str, int]:
         curses.use_default_colors()
         pair_idx = 2  # pair 1 reserved for other uses
         for name in _ANSI_COLORS:
-            base = name.replace("bright-", "")
-            fg = _CURSES_COLOR_MAP.get(base, curses.COLOR_WHITE)
+            fg = _CURSES_COLOR_MAP.get(name, curses.COLOR_WHITE)
             try:
                 curses.init_pair(pair_idx, fg, -1)
-                attr = curses.color_pair(pair_idx)
-                if name.startswith("bright-"):
-                    attr |= curses.A_BOLD
+                attr = curses.color_pair(pair_idx) | curses.A_BOLD
                 attrs[name] = attr
                 pair_idx += 1
             except curses.error:

bot_bottle/contrib/claude/Dockerfile

@@ -21,7 +21,7 @@ FROM node:22-slim
 # to it) works against egress's bumped TLS without the agent needing
 # local DNS.
 RUN apt-get update \
-  && apt-get install -y --no-install-recommends git ca-certificates curl \
+  && apt-get install -y --no-install-recommends git ca-certificates curl ripgrep iproute2 dnsutils \
   && rm -rf /var/lib/apt/lists/*
 
 # App-specific deps. Python isn't required by claude-code itself
@@ -36,7 +36,7 @@ RUN apt-get update \
 # build (`claude --version` returns 2.1.126). Bump deliberately when
 # rolling forward; an unpinned install would mean rebuilds silently pick
 # up new behavior.
-RUN npm install -g --no-fund --no-audit @anthropic-ai/claude-code@2.1.126 \
+RUN npm install -g --no-fund --no-audit @anthropic-ai/claude-code@2.1.172 \
   && npm cache clean --force
 
 # Run as a non-root user. The node image already provides a `node` user

bot_bottle/contrib/claude/agent_provider.py

@@ -17,9 +17,12 @@ from typing import TYPE_CHECKING
 from ...agent_provider import (
     AgentProvider,
     AgentProviderRuntime,
+    AgentProvisionDir,
     AgentProvisionFile,
     AgentProvisionPlan,
+    provider_startup_args,
 )
+from ...backend.docker import util as docker_mod
 from ...egress import EgressRoute
 from ...log import die, info, warn
 
@@ -28,8 +31,6 @@ if TYPE_CHECKING:
     from ...backend import Bottle, BottlePlan
 
 
-_REPO_ROOT = Path(__file__).resolve().parents[3]
-
 _SUPERVISE_MCP_NAME = "supervise"
 
 
@@ -40,15 +41,56 @@ def _skills_dir(guest_home: str) -> str:
 def _prompt_path(guest_home: str) -> str:
     return f"{guest_home}/.bot-bottle-prompt.txt"
 
+
+_STATUS_LINE_COLORS = {
+    "red": "\033[91m",
+    "green": "\033[92m",
+    "yellow": "\033[93m",
+    "blue": "\033[94m",
+    "magenta": "\033[95m",
+}
+
+_CLAUDE_THEME_COLORS = {
+    "red": "redBright",
+    "green": "greenBright",
+    "yellow": "yellowBright",
+    "blue": "blueBright",
+    "magenta": "magentaBright",
+}
+
+
+def _status_line_script(label: str, color: str) -> str:
+    if not label:
+        return "#!/bin/sh\nprintf '\\n'\n"
+    label_q = shlex.quote(label)
+    if color and color in _STATUS_LINE_COLORS:
+        return (
+            "#!/bin/sh\n"
+            f"printf '%b%s%b\\n' '{_STATUS_LINE_COLORS[color]}' {label_q} '\\033[0m'\n"
+        )
+    return f"#!/bin/sh\nprintf '%s\\n' {label_q}\n"
+
+
+def _custom_theme_payload(color: str) -> dict[str, object] | None:
+    theme_color = _CLAUDE_THEME_COLORS.get(color)
+    if not theme_color:
+        return None
+    return {
+        "name": f"Bot-bottle {color}",
+        "base": "dark",
+        "overrides": {
+            "claude": f"ansi:{theme_color}",
+        },
+    }
+
+
 _RUNTIME = AgentProviderRuntime(
     template="claude",
     command="claude",
     image="bot-bottle-claude:latest",
-    dockerfile=str(_REPO_ROOT / "Dockerfile.claude"),
     prompt_mode="append_file",
     bypass_args=("--dangerously-skip-permissions",),
     resume_args=("--continue",),
-    remote_control_args=("--remote-control",),
 )
 
 
@@ -62,7 +104,8 @@ class ClaudeAgentProvider(AgentProvider):
         *,
         dockerfile: str,
         state_dir: Path,
-        guest_home: str,
+        instance_name: str,
+        prompt_file: Path,
         guest_env: dict[str, str] | None = None,
         auth_token: str = "",
         forward_host_credentials: bool = False,
@@ -70,15 +113,22 @@ class ClaudeAgentProvider(AgentProvider):
         trusted_project_path: str = "",
         label: str = "",
         color: str = "",
+        provider_settings: dict[str, object] | None = None,
     ) -> AgentProvisionPlan:
-        del forward_host_credentials, host_env  # Codex-only knobs
+        del forward_host_credentials, host_env
         resolved_guest_env = dict(guest_env or {})
+        startup_args = provider_startup_args(provider_settings)
+        guest_home = self.guest_home
         trusted_path = trusted_project_path or guest_home
 
         env_vars: dict[str, str] = {
             "CLAUDE_CODE_DISABLE_NONESSENTIAL_TRAFFIC": "1",
             "DISABLE_ERROR_REPORTING": "1",
         }
+        dirs = (
+            AgentProvisionDir(f"{guest_home}/.claude"),
+            AgentProvisionDir(f"{guest_home}/.claude/themes"),
+        )
         claude_config = state_dir / "claude.json"
         claude_projects = {guest_home: {"hasTrustDialogAccepted": True}}
         claude_projects[trusted_path] = {"hasTrustDialogAccepted": True}
@@ -88,15 +138,45 @@ class ClaudeAgentProvider(AgentProvider):
             "bypassPermissionsModeAccepted": True,
             "projects": claude_projects,
         }
-        if label:
-            payload["name"] = label
-        if color:
-            payload["color"] = color
         claude_config.write_text(json.dumps(payload, indent=2) + "\n")
         claude_config.chmod(0o600)
-        files = (
+        files = [
             AgentProvisionFile(claude_config, f"{guest_home}/.claude.json"),
-        )
+        ]
+
+        claude_settings = state_dir / "claude-settings.json"
+        claude_settings_payload: dict[str, object] = {}
+        if label or color:
+            statusline_script = state_dir / "claude-statusline.sh"
+            statusline_script.write_text(_status_line_script(label, color))
+            statusline_script.chmod(0o755)
+            files.append(AgentProvisionFile(
+                statusline_script,
+                f"{guest_home}/.claude/statusline.sh",
+                mode="755",
+            ))
+            claude_settings_payload["statusLine"] = {
+                "type": "command",
+                "command": "~/.claude/statusline.sh",
+            }
+        theme_payload = _custom_theme_payload(color)
+        if theme_payload is not None:
+            theme_name = f"bot-bottle-{docker_mod.slugify(label or color)}"
+            theme_file = state_dir / f"{theme_name}.json"
+            theme_file.write_text(json.dumps(theme_payload, indent=2) + "\n")
+            theme_file.chmod(0o644)
+            files.append(AgentProvisionFile(
+                theme_file,
+                f"{guest_home}/.claude/themes/{theme_name}.json",
+            ))
+            claude_settings_payload["theme"] = f"custom:{theme_name}"
+        if claude_settings_payload:
+            claude_settings.write_text(json.dumps(claude_settings_payload, indent=2) + "\n")
+            claude_settings.chmod(0o600)
+            files.append(AgentProvisionFile(
+                claude_settings,
+                f"{guest_home}/.claude/settings.json",
+            ))
         egress_routes = (EgressRoute(
             host="api.anthropic.com",
             auth_scheme="Bearer" if auth_token else "",
@@ -107,15 +187,22 @@ class ClaudeAgentProvider(AgentProvider):
             env_vars["CLAUDE_CODE_OAUTH_TOKEN"] = "egress-placeholder"
             hidden_env_names = frozenset({"CLAUDE_CODE_OAUTH_TOKEN"})
 
+        has_prompt = prompt_file.exists() and bool(prompt_file.read_text())
         return AgentProvisionPlan(
             template=_RUNTIME.template,
             command=_RUNTIME.command,
             prompt_mode=_RUNTIME.prompt_mode,
             image=_RUNTIME.image,
             dockerfile=dockerfile,
+            guest_home=guest_home,
+            instance_name=instance_name,
+            prompt_file=prompt_file,
             env_vars=env_vars,
             guest_env=resolved_guest_env,
-            files=files,
+            has_prompt=has_prompt,
+            startup_args=startup_args,
+            dirs=dirs,
+            files=tuple(files),
             egress_routes=egress_routes,
             hidden_env_names=hidden_env_names,
         )
@@ -126,11 +213,11 @@ class ClaudeAgentProvider(AgentProvider):
         when the agent has no skills."""
         from ...backend.util import host_skill_dir
 
-        agent = plan.spec.manifest.agents[plan.spec.agent_name]
+        agent = plan.manifest.agent
         if not agent.skills:
             return
         skills_dir = _skills_dir(plan.guest_home)
-        bottle.exec(f"mkdir -p {skills_dir}", user="root")
+        bottle.exec(f"mkdir -p {shlex.quote(skills_dir)}", user="root")
         for name in agent.skills:
             src = host_skill_dir(name)
             if not os.path.isdir(src):
@@ -140,9 +227,13 @@ class ClaudeAgentProvider(AgentProvider):
                 )
             dst = f"{skills_dir}/{name}"
             info(f"copying skill {name} into {bottle.name}:{dst}")
-            bottle.exec(f"rm -rf {dst} && mkdir -p {dst}", user="root")
+            # Defense in depth: skill names are validated kebab-case at
+            # manifest load, but quote the path so a future unvalidated
+            # field can't inject shell metacharacters here either.
+            dst_q = shlex.quote(dst)
+            bottle.exec(f"rm -rf {dst_q} && mkdir -p {dst_q}", user="root")
             bottle.cp_in(f"{src}/.", f"{dst}/")
-            bottle.exec(f"chown -R node:node {dst}", user="root")
+            bottle.exec(f"chown -R node:node {dst_q}", user="root")
 
     def provision_prompt(self, plan: "BottlePlan", bottle: "Bottle") -> str | None:
         """Copy the prompt file into the guest, fix ownership/mode.
@@ -155,8 +246,8 @@ class ClaudeAgentProvider(AgentProvider):
             f"chown node:node {prompt_path} && chmod 600 {prompt_path}",
             user="root",
         )
-        agent = plan.spec.manifest.agents[plan.spec.agent_name]
-        return prompt_path if agent.prompt else None
+        agent = plan.manifest.agent
+        return prompt_path if plan.agent_provision.has_prompt or agent.prompt else None
 
     def provision(self, plan: "BottlePlan", bottle: "Bottle") -> None:
         """Apply the claude-side declarative provision steps from
@@ -222,6 +313,9 @@ class ClaudeAgentProvider(AgentProvider):
                 f"claude mcp add --scope user --transport http supervise {supervise_url}"
             )
 
+    def headless_prompt(self, prompt: str) -> list[str]:
+        return ["-p", prompt]
+
 
 def _exec(bottle: "Bottle", script: str, error: str) -> None:
     result = bottle.exec(script, user="root")

bot_bottle/contrib/codex/Dockerfile

@@ -1,12 +1,12 @@
 # bot-bottle Codex provider image.
 #
 # Mirrors the default Claude image shape: Node LTS, git/network tooling,
-# non-root node user, and the provider CLI installed globally.
+# non-root node user, and the provider CLI installed for that user.
 
 FROM node:22-slim
 
 RUN apt-get update \
-  && apt-get install -y --no-install-recommends git ca-certificates curl \
+  && apt-get install -y --no-install-recommends git ca-certificates curl procps ripgrep \
   && rm -rf /var/lib/apt/lists/*
 
 # App-specific deps. Python isn't required by codex itself
@@ -17,12 +17,15 @@ RUN apt-get update \
   && apt-get install -y --no-install-recommends python3 python3-pip python3-venv \
   && rm -rf /var/lib/apt/lists/*
 
-RUN npm install -g --no-fund --no-audit @openai/codex@0.136.0 \
-  && npm cache clean --force
-
 USER node
 WORKDIR /home/node
 
-RUN mkdir -p /home/node/.codex
+ENV PATH="/home/node/.local/bin:${PATH}"
+
+# Remote-control support requires the standalone Codex install layout
+# under ~/.codex/packages/standalone/current. The npm package can run
+# the TUI, but remote-control commands expect this installer-owned path.
+RUN mkdir -p /home/node/.codex \
+  && curl -fsSL https://chatgpt.com/codex/install.sh | sh
 
 CMD ["codex"]

bot_bottle/contrib/codex/agent_provider.py

@@ -18,10 +18,11 @@ from ...agent_provider import (
     CODEX_HOST_CREDENTIAL_HOSTS,
     AgentProvider,
     AgentProviderRuntime,
-    AgentProvisionCommand,
     AgentProvisionDir,
+    AgentProvisionCommand,
     AgentProvisionFile,
     AgentProvisionPlan,
+    provider_startup_args,
 )
 from .codex_auth import codex_host_access_token, write_codex_dummy_auth_file
 from ...egress import CODEX_HOST_CREDENTIAL_TOKEN_REF, EgressRoute
@@ -32,9 +33,13 @@ if TYPE_CHECKING:
     from ...backend import Bottle, BottlePlan
 
 
-_REPO_ROOT = Path(__file__).resolve().parents[3]
-
 _SUPERVISE_MCP_NAME = "supervise"
+_CODEX_CLI = "/home/node/.codex/packages/standalone/current/bin/codex"
+_CODEX_CLI_PATH = (
+    "/home/node/.local/bin:"
+    "/home/node/.codex/packages/standalone/current/bin:"
+    "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
+)
 
 
 def _skills_dir(guest_home: str) -> str:
@@ -48,15 +53,14 @@ def _skills_dir(guest_home: str) -> str:
 def _prompt_path(guest_home: str) -> str:
     return f"{guest_home}/.bot-bottle-prompt.txt"
 
+
 _RUNTIME = AgentProviderRuntime(
     template="codex",
-    command="codex",
+    command=_CODEX_CLI,
     image="bot-bottle-codex:latest",
-    dockerfile=str(_REPO_ROOT / "Dockerfile.codex"),
     prompt_mode="read_prompt_file",
     bypass_args=("--dangerously-bypass-approvals-and-sandbox",),
     resume_args=("resume", "--last"),
-    remote_control_args=(),
 )
 
 
@@ -70,7 +74,8 @@ class CodexAgentProvider(AgentProvider):
         *,
         dockerfile: str,
         state_dir: Path,
-        guest_home: str,
+        instance_name: str,
+        prompt_file: Path,
         guest_env: dict[str, str] | None = None,
         auth_token: str = "",
         forward_host_credentials: bool = False,
@@ -78,9 +83,12 @@ class CodexAgentProvider(AgentProvider):
         trusted_project_path: str = "",
         label: str = "",
         color: str = "",
+        provider_settings: dict[str, object] | None = None,
     ) -> AgentProvisionPlan:
-        del auth_token, label, color  # Claude-only knobs
+        del auth_token, label, color
         resolved_guest_env = dict(guest_env or {})
+        startup_args = provider_startup_args(provider_settings)
+        guest_home = self.guest_home
         trusted_path = trusted_project_path or guest_home
 
         env_vars: dict[str, str] = {
@@ -102,6 +110,11 @@ class CodexAgentProvider(AgentProvider):
         config_file.write_text(
             f'[projects."{toml_path}"]\n'
             'trust_level = "trusted"\n'
+            "\n"
+            "[tui]\n"
+            'status_line = ["model-with-reasoning"]\n'
+            'terminal_title = ["spinner", "project"]\n'
+            'theme = "ansi"\n'
         )
         config_file.chmod(0o600)
         files.append(AgentProvisionFile(config_file, config_path))
@@ -138,20 +151,27 @@ class CodexAgentProvider(AgentProvider):
                 "env",
                 f"HOME={guest_home}",
                 f"CODEX_HOME={auth_dir}",
-                "codex", "login", "status",
+                f"PATH={_CODEX_CLI_PATH}",
+                _CODEX_CLI, "login", "status",
             ), (
                 "codex host credentials: dummy auth was copied into the "
                 "guest, but Codex did not accept it"
             )))
 
+        has_prompt = prompt_file.exists() and bool(prompt_file.read_text())
         return AgentProvisionPlan(
             template=_RUNTIME.template,
             command=_RUNTIME.command,
             prompt_mode=_RUNTIME.prompt_mode,
             image=_RUNTIME.image,
             dockerfile=dockerfile,
+            guest_home=guest_home,
+            instance_name=instance_name,
+            prompt_file=prompt_file,
             env_vars=env_vars,
             guest_env=resolved_guest_env,
+            has_prompt=has_prompt,
+            startup_args=startup_args,
             dirs=tuple(dirs),
             files=tuple(files),
             pre_copy=tuple(pre_copy),
@@ -166,11 +186,11 @@ class CodexAgentProvider(AgentProvider):
         skills."""
         from ...backend.util import host_skill_dir
 
-        agent = plan.spec.manifest.agents[plan.spec.agent_name]
+        agent = plan.manifest.agent
         if not agent.skills:
             return
         skills_dir = _skills_dir(plan.guest_home)
-        bottle.exec(f"mkdir -p {skills_dir}", user="root")
+        bottle.exec(f"mkdir -p {shlex.quote(skills_dir)}", user="root")
         for name in agent.skills:
             src = host_skill_dir(name)
             if not os.path.isdir(src):
@@ -180,9 +200,13 @@ class CodexAgentProvider(AgentProvider):
                 )
             dst = f"{skills_dir}/{name}"
             info(f"copying skill {name} into {bottle.name}:{dst}")
-            bottle.exec(f"rm -rf {dst} && mkdir -p {dst}", user="root")
+            # Defense in depth: skill names are validated kebab-case at
+            # manifest load, but quote the path so a future unvalidated
+            # field can't inject shell metacharacters here either.
+            dst_q = shlex.quote(dst)
+            bottle.exec(f"rm -rf {dst_q} && mkdir -p {dst_q}", user="root")
             bottle.cp_in(f"{src}/.", f"{dst}/")
-            bottle.exec(f"chown -R node:node {dst}", user="root")
+            bottle.exec(f"chown -R node:node {dst_q}", user="root")
 
     def provision_prompt(self, plan: "BottlePlan", bottle: "Bottle") -> str | None:
         """Copy the prompt file into the guest, fix ownership/mode.
@@ -195,8 +219,8 @@ class CodexAgentProvider(AgentProvider):
             f"chown node:node {prompt_path} && chmod 600 {prompt_path}",
             user="root",
         )
-        agent = plan.spec.manifest.agents[plan.spec.agent_name]
-        return prompt_path if agent.prompt else None
+        agent = plan.manifest.agent
+        return prompt_path if plan.agent_provision.has_prompt or agent.prompt else None
 
     def provision(self, plan: "BottlePlan", bottle: "Bottle") -> None:
         """Apply the codex-side declarative provision steps from
@@ -250,8 +274,8 @@ class CodexAgentProvider(AgentProvider):
             return
         info(f"registering supervise MCP server in agent codex config → {supervise_url}")
         r = bottle.exec(
-            f"codex mcp add --transport http "
-            f"{_SUPERVISE_MCP_NAME} {supervise_url}",
+            f"{shlex.quote(_CODEX_CLI)} mcp add {_SUPERVISE_MCP_NAME} --url "
+            f"{shlex.quote(supervise_url)}",
             user="node",
         )
         if r.returncode != 0:
@@ -259,9 +283,12 @@ class CodexAgentProvider(AgentProvider):
                 f"`codex mcp add supervise` failed (exit {r.returncode}): "
                 f"{(r.stderr or r.stdout or '').strip()}. Inside the bottle, "
                 f"register manually with: "
-                f"codex mcp add --transport http supervise {supervise_url}"
+                f"codex mcp add supervise --url {shlex.quote(supervise_url)}"
             )
 
+    def headless_prompt(self, prompt: str) -> list[str]:
+        return [prompt]
+
 
 def _exec(bottle: "Bottle", script: str, error: str) -> None:
     result = bottle.exec(script, user="root")

bot_bottle/contrib/gitea/deploy_key_provisioner.py

@@ -2,7 +2,13 @@
 
 Generates ed25519 keypairs via `ssh-keygen` and registers / deletes
 them using the Gitea deploy-key HTTP API. No new Python dependencies —
-only stdlib `urllib.request` and `subprocess`."""
+only stdlib `urllib.request` and `subprocess`.
+
+Required token permissions (Gitea "Applications" → "Generate Token"):
+  - Repository: Read & Write
+    Grants POST /api/v1/repos/{owner}/{repo}/keys (create deploy key)
+    and DELETE /api/v1/repos/{owner}/{repo}/keys/{id} (revoke deploy key).
+    No other scopes are needed."""
 
 from __future__ import annotations
 
@@ -13,7 +19,12 @@ import urllib.error
 import urllib.request
 from pathlib import Path
 
-from ...deploy_key_provisioner import DeployKeyProvisioner
+from ...deploy_key_provisioner import DeployKeyCollisionError, DeployKeyProvisioner
+
+# Timeout for ssh-keygen and Gitea API HTTP calls. A hung Gitea instance at
+# prepare time would stall bottle launch indefinitely without this bound.
+_API_TIMEOUT_SECS = 30
+_KEYGEN_TIMEOUT_SECS = 10
 
 
 class GiteaDeployKeyProvisioner(DeployKeyProvisioner):
@@ -40,6 +51,7 @@ class GiteaDeployKeyProvisioner(DeployKeyProvisioner):
                 check=True,
                 stdout=subprocess.DEVNULL,
                 stderr=subprocess.DEVNULL,
+                timeout=_KEYGEN_TIMEOUT_SECS,
             )
             private_key = key_path.read_bytes()
             public_key = key_path.with_suffix(".pub").read_text().strip()
@@ -61,10 +73,15 @@ class GiteaDeployKeyProvisioner(DeployKeyProvisioner):
             method="POST",
         )
         try:
-            with urllib.request.urlopen(req) as resp:
+            with urllib.request.urlopen(req, timeout=_API_TIMEOUT_SECS) as resp:
                 body = json.loads(resp.read())
         except urllib.error.HTTPError as exc:
             _body = _read_error_body(exc)
+            if exc.code == 422:
+                raise DeployKeyCollisionError(
+                    f"deploy key collision for {owner_repo!r} "
+                    f"(title={title!r}): key title or content already registered — {_body}"
+                ) from exc
             raise RuntimeError(
                 f"failed to create deploy key for {owner_repo}: "
                 f"HTTP {exc.code} — {_body}"
@@ -87,7 +104,7 @@ class GiteaDeployKeyProvisioner(DeployKeyProvisioner):
             method="DELETE",
         )
         try:
-            with urllib.request.urlopen(req):
+            with urllib.request.urlopen(req, timeout=_API_TIMEOUT_SECS):
                 pass
         except urllib.error.HTTPError as exc:
             if exc.code == 404:

bot_bottle/contrib/pi/Dockerfile

@@ -0,0 +1,41 @@
+# bot-bottle Pi provider image.
+#
+# Node LTS, git/network tooling, and the Pi coding-agent CLI installed globally.
+
+FROM node:22-slim
+
+RUN apt-get update \
+  && apt-get install -y --no-install-recommends \
+  git \
+  ca-certificates \
+  curl \
+  fd-find \
+  ripgrep \
+  && ln -s /usr/bin/fdfind /usr/local/bin/fd \
+  && rm -rf /var/lib/apt/lists/*
+
+RUN apt-get update \
+  && apt-get install -y --no-install-recommends python3 python3-pip python3-venv \
+  && rm -rf /var/lib/apt/lists/*
+
+RUN npm install -g --ignore-scripts --no-fund --no-audit @earendil-works/pi-coding-agent \
+  && npm cache clean --force
+
+RUN mkdir -p /home/node/.pi/agent \
+  /home/node/.pi/context-mode/sessions \
+  /tmp/pi-subagents-uid-1000 \
+  && chown -R node:node /home/node/.pi /tmp \
+  && chmod -R u+rwX /tmp \
+  && chown root:root /tmp /var/tmp \
+  && chmod 1777 /tmp /var/tmp
+
+USER node
+WORKDIR /home/node
+
+RUN pi install npm:@harms-haus/pi-cwd \
+  && pi install npm:pi-web-access \
+  && pi install npm:context-mode \
+  && pi install npm:pi-subagents \
+  && pi install npm:pi-mcp-adapter
+
+CMD ["pi"]

bot_bottle/contrib/pi/__init__.py

@@ -0,0 +1 @@
+"""Pi agent provider package."""

bot_bottle/contrib/pi/agent_provider.py

@@ -0,0 +1,328 @@
+"""Pi agent provider plugin (PRD 0058, contrib).
+
+Pi uses ~/.pi/agent/models.json for custom provider/model settings.
+This provider writes an Ollama-compatible default configuration and
+lets bottles override the model endpoint and model ids via
+agent_provider.settings.
+"""
+
+from __future__ import annotations
+
+import json
+import os
+import shlex
+from pathlib import Path
+from typing import TYPE_CHECKING
+from urllib.parse import urlparse
+
+from ...agent_provider import (
+    AgentProvider,
+    AgentProviderRuntime,
+    AgentProvisionDir,
+    AgentProvisionFile,
+    AgentProvisionPlan,
+    provider_startup_args,
+)
+from ...egress import EgressRoute
+from ...log import die, info
+
+
+if TYPE_CHECKING:
+    from ...backend import Bottle, BottlePlan
+
+
+_DEFAULT_BASE_URL = "http://ollama:11434/v1"
+_DEFAULT_MODEL = "qwen2.5-coder:7b"
+_DEFAULT_PROVIDER_NAME = "ollama"
+_DEFAULT_CONTEXT_WINDOW = 4096
+_DEFAULT_MAX_TOKENS = 1024
+
+
+def _skills_dir(guest_home: str) -> str:
+    return f"{guest_home}/.pi/agent/skills"
+
+
+def _prompt_path(guest_home: str) -> str:
+    return f"{guest_home}/.bot-bottle-prompt.txt"
+
+
+def _append_system_path(guest_home: str) -> str:
+    return f"{guest_home}/.pi/agent/APPEND_SYSTEM.md"
+
+
+def _models_path(guest_home: str) -> str:
+    return f"{guest_home}/.pi/agent/models.json"
+
+
+def _runtime_state_repair_script(guest_home: str) -> str:
+    home = shlex.quote(guest_home)
+    pi_home = shlex.quote(f"{guest_home}/.pi")
+    context_sessions = shlex.quote(f"{guest_home}/.pi/context-mode/sessions")
+    return (
+        f"mkdir -p {context_sessions} /tmp/pi-subagents-uid-1000 && "
+        f"chown node:node {home} && "
+        f"chown -R node:node {pi_home} /tmp && "
+        "chmod -R u+rwX /tmp && "
+        f"chmod 755 {home} && "
+        "chown root:root /tmp /var/tmp && "
+        "chmod 1777 /tmp /var/tmp"
+    )
+
+
+def _settings_value(
+    settings: dict[str, object],
+    key: str,
+    default: object,
+) -> object:
+    value = settings.get(key)
+    return default if value is None else value
+
+
+def _settings_int(
+    settings: dict[str, object],
+    key: str,
+    default: int,
+) -> int:
+    value = _settings_value(settings, key, default)
+    if isinstance(value, bool):
+        return default
+    if isinstance(value, (int, str)):
+        return int(value)
+    return default
+
+
+def _pi_models_json(
+    settings: dict[str, object],
+) -> tuple[dict[str, object], str, str, list[str], str]:
+    provider_name = str(
+        _settings_value(settings, "provider", _DEFAULT_PROVIDER_NAME)
+    )
+    base_url = str(_settings_value(settings, "base_url", _DEFAULT_BASE_URL))
+    api = str(_settings_value(settings, "api", "openai-completions"))
+    api_key = settings.get("api_key")
+    api_key_env = str(settings.get("api_key_env", ""))
+    models_raw = _settings_value(settings, "models", [_DEFAULT_MODEL])
+    models = [str(model) for model in models_raw]  # type: ignore[union-attr]
+    supports_developer_role = bool(
+        _settings_value(settings, "supports_developer_role", False)
+    )
+    supports_reasoning_effort = bool(
+        _settings_value(settings, "supports_reasoning_effort", False)
+    )
+    max_tokens_field = str(
+        _settings_value(settings, "max_tokens_field", "max_tokens")
+    )
+    context_window = _settings_int(
+        settings, "context_window", _DEFAULT_CONTEXT_WINDOW,
+    )
+    max_tokens = _settings_int(settings, "max_tokens", _DEFAULT_MAX_TOKENS)
+    input_context_window = max(1, context_window - max_tokens)
+    provider: dict[str, object] = {
+        "baseUrl": base_url,
+        "api": api,
+        "compat": {
+            "supportsDeveloperRole": supports_developer_role,
+            "supportsReasoningEffort": supports_reasoning_effort,
+            "maxTokensField": max_tokens_field,
+        },
+        "models": [
+            {
+                "id": model,
+                "name": model,
+                "contextWindow": input_context_window,
+                "maxTokens": max_tokens,
+            }
+            for model in models
+        ],
+    }
+    if api_key is not None:
+        provider["apiKey"] = str(api_key)
+    elif api_key_env:
+        provider["apiKey"] = "egress-placeholder"
+    elif provider_name == _DEFAULT_PROVIDER_NAME:
+        provider["apiKey"] = "ollama"
+    payload: dict[str, object] = {
+        "providers": {
+            provider_name: provider,
+        }
+    }
+    return payload, base_url, api_key_env, models, provider_name
+
+
+def _route_host(base_url: str) -> str:
+    parsed = urlparse(base_url)
+    if not parsed.scheme or not parsed.hostname:
+        die(
+            "agent provider provisioning: pi settings base_url must be an "
+            f"absolute URL (was {base_url!r})"
+        )
+    return parsed.hostname
+
+
+_RUNTIME = AgentProviderRuntime(
+    template="pi",
+    command="pi",
+    image="bot-bottle-pi:latest",
+    prompt_mode="append_system_prompt",
+    bypass_args=(),
+    resume_args=(),
+)
+
+
+class PiAgentProvider(AgentProvider):
+    @property
+    def runtime(self) -> AgentProviderRuntime:
+        return _RUNTIME
+
+    def provision_plan(
+        self,
+        *,
+        dockerfile: str,
+        state_dir: Path,
+        instance_name: str,
+        prompt_file: Path,
+        guest_env: dict[str, str] | None = None,
+        auth_token: str = "",
+        forward_host_credentials: bool = False,
+        host_env: dict[str, str] | None = None,
+        trusted_project_path: str = "",
+        label: str = "",
+        color: str = "",
+        provider_settings: dict[str, object] | None = None,
+    ) -> AgentProvisionPlan:
+        del auth_token, forward_host_credentials, host_env, trusted_project_path
+        del label, color
+        resolved_guest_env = dict(guest_env or {})
+        guest_home = self.guest_home
+        settings = dict(provider_settings or {})
+
+        models_payload, base_url, api_key_env, models, provider_name = (
+            _pi_models_json(settings)
+        )
+        extra_startup_args = provider_startup_args(provider_settings)
+        models_file = state_dir / "pi-models.json"
+        models_file.write_text(json.dumps(models_payload, indent=2) + "\n")
+        models_file.chmod(0o600)
+
+        has_prompt = prompt_file.exists() and bool(prompt_file.read_text())
+        auth_scheme = "Bearer" if api_key_env else ""
+        return AgentProvisionPlan(
+            template=_RUNTIME.template,
+            command=_RUNTIME.command,
+            prompt_mode=_RUNTIME.prompt_mode,
+            image=_RUNTIME.image,
+            dockerfile=dockerfile,
+            guest_home=guest_home,
+            instance_name=instance_name,
+            prompt_file=prompt_file,
+            guest_env=resolved_guest_env,
+            has_prompt=has_prompt,
+            startup_args=(
+                "--models",
+                ",".join(f"{provider_name}/{model}" for model in models),
+                *extra_startup_args,
+            ),
+            dirs=(AgentProvisionDir(f"{guest_home}/.pi/agent"),),
+            files=(AgentProvisionFile(models_file, _models_path(guest_home)),),
+            egress_routes=(EgressRoute(
+                host=_route_host(base_url),
+                auth_scheme=auth_scheme,
+                token_ref=api_key_env,
+            ),),
+        )
+
+    def provision_skills(self, plan: "BottlePlan", bottle: "Bottle") -> None:
+        from ...backend.util import host_skill_dir
+
+        agent = plan.manifest.agent
+        if not agent.skills:
+            return
+        skills_dir = _skills_dir(plan.guest_home)
+        bottle.exec(f"mkdir -p {shlex.quote(skills_dir)}", user="root")
+        for name in agent.skills:
+            src = host_skill_dir(name)
+            if not os.path.isdir(src):
+                die(
+                    f"skill {name!r} disappeared from host between "
+                    f"validation and copy at {src}."
+                )
+            dst = f"{skills_dir}/{name}"
+            info(f"copying skill {name} into {bottle.name}:{dst}")
+            # Defense in depth: skill names are validated kebab-case at
+            # manifest load, but quote the path so a future unvalidated
+            # field can't inject shell metacharacters here either.
+            dst_q = shlex.quote(dst)
+            bottle.exec(f"rm -rf {dst_q} && mkdir -p {dst_q}", user="root")
+            bottle.cp_in(f"{src}/.", f"{dst}/")
+            bottle.exec(f"chown -R node:node {dst_q}", user="root")
+
+    def provision_prompt(self, plan: "BottlePlan", bottle: "Bottle") -> str | None:
+        prompt_path = _prompt_path(plan.guest_home)
+        append_system_path = _append_system_path(plan.guest_home)
+        bottle.cp_in(str(plan.prompt_file), prompt_path)  # type: ignore
+        bottle.exec(
+            f"mkdir -p {shlex.quote(plan.guest_home)}/.pi/agent && "
+            f"cp {shlex.quote(prompt_path)} {shlex.quote(append_system_path)} && "
+            f"chown node:node {shlex.quote(prompt_path)} "
+            f"{shlex.quote(append_system_path)} && "
+            f"chmod 600 {shlex.quote(prompt_path)} "
+            f"{shlex.quote(append_system_path)}",
+            user="root",
+        )
+        # Pi's `--append-system-prompt` takes literal text, not a file path.
+        # Use its documented APPEND_SYSTEM.md discovery path instead.
+        return None
+
+    def provision(self, plan: "BottlePlan", bottle: "Bottle") -> None:
+        provision = plan.agent_provision
+        _exec(
+            bottle,
+            _runtime_state_repair_script(plan.guest_home),
+            "could not prepare pi runtime state",
+        )
+        for d in provision.dirs:
+            path = shlex.quote(d.guest_path)
+            _exec(bottle, f"mkdir -p {path}", f"could not create {d.guest_path}")
+            _exec(
+                bottle,
+                f"chown {shlex.quote(d.owner)} {path}",
+                f"could not chown {d.guest_path}",
+            )
+            _exec(
+                bottle,
+                f"chmod {shlex.quote(d.mode)} {path}",
+                f"could not chmod {d.guest_path}",
+            )
+        for f in provision.files:
+            bottle.cp_in(str(f.host_path), f.guest_path)
+            path = shlex.quote(f.guest_path)
+            _exec(
+                bottle,
+                f"chown {shlex.quote(f.owner)} {path}",
+                f"could not chown {f.guest_path}",
+            )
+            _exec(
+                bottle,
+                f"chmod {shlex.quote(f.mode)} {path}",
+                f"could not chmod {f.guest_path}",
+            )
+
+    def provision_supervise_mcp(
+        self,
+        plan: "BottlePlan",
+        bottle: "Bottle",
+        supervise_url: str,
+    ) -> None:
+        del plan, bottle, supervise_url
+
+    def headless_prompt(self, prompt: str) -> list[str]:
+        return ["-p", prompt]
+
+
+def _exec(bottle: "Bottle", script: str, error: str) -> None:
+    result = bottle.exec(script, user="root")
+    if result.returncode != 0:
+        detail = (result.stderr or result.stdout).strip()
+        if detail:
+            detail = f": {detail}"
+        die(f"agent provider provisioning: {error}{detail}")

bot_bottle/db_store.py

@@ -0,0 +1,59 @@
+"""Shared SQLite-backed store base class for bot-bottle (PRD 0013)."""
+
+from __future__ import annotations
+
+import sqlite3
+from pathlib import Path
+
+try:
+    from .migrations import TableMigrations
+except ImportError:
+    from migrations import TableMigrations  # type: ignore[import-not-found]  # pylint: disable=import-error,no-name-in-module
+
+
+class DbVersionError(Exception):
+    """Raised when the on-disk schema is behind the current migration list."""
+
+
+class DbStore:
+    """Base for SQLite-backed stores. Subclasses resolve db_path then call super().__init__."""
+
+    def __init__(self, db_path: Path, migrations: TableMigrations) -> None:
+        self.db_path = db_path
+        self._migrations = migrations
+        self.db_path.parent.mkdir(parents=True, exist_ok=True)
+
+    def _connect(self) -> sqlite3.Connection:
+        conn = sqlite3.connect(self.db_path)
+        conn.row_factory = sqlite3.Row
+        return conn
+
+    def is_migrated(self) -> bool:
+        """Return True if the DB is fully up-to-date, False if migration is needed."""
+        if not self.db_path.exists():
+            return False
+        try:
+            with self._connect() as conn:
+                row = conn.execute(
+                    "SELECT version FROM schema_versions WHERE module = ?",
+                    (self._migrations.schema_key,),
+                ).fetchone()
+        except sqlite3.OperationalError:
+            return False
+        version = row[0] if row else 0
+        return version == len(self._migrations.migrations)
+
+    def migrate(self) -> None:
+        """Apply any pending migrations and set permissions on the DB file."""
+        with self._connect() as conn:
+            self._migrations.apply(conn)
+        self._chmod()
+
+    def _chmod(self) -> None:
+        try:
+            self.db_path.chmod(0o600)
+        except OSError:
+            pass
+
+
+__all__ = ["DbStore", "DbVersionError"]

bot_bottle/deploy_key_provisioner.py

@@ -11,6 +11,10 @@ from __future__ import annotations
 from abc import ABC, abstractmethod
 
 
+class DeployKeyCollisionError(RuntimeError):
+    """Raised when a deploy key title or public key already exists on the repo."""
+
+
 class DeployKeyProvisioner(ABC):
     """Manages a single deploy-key lifecycle on a remote forge."""
 

bot_bottle/dlp_detectors.py

@@ -11,10 +11,13 @@ the same try/except import shim pattern.
 from __future__ import annotations
 
 import base64
+import functools
 import gzip
 import re
 import typing
 import unicodedata
+from math import log2
+from collections import Counter
 from urllib.parse import quote as url_quote
 
 try:
@@ -78,16 +81,27 @@ TOKEN_PATTERNS: tuple[tuple[str, re.Pattern[str]], ...] = (
 )
 
 
-def scan_token_patterns(text: str, *, location: str = "body") -> ScanResult | None:
+def scan_token_patterns(
+    text: str,
+    *,
+    location: str = "body",
+    safe_tokens: typing.AbstractSet[str] | None = None,
+) -> ScanResult | None:
     normalized = _normalize_text(text)
     for name, pattern in TOKEN_PATTERNS:
-        m = pattern.search(normalized)
-        if m is not None:
+        for m in pattern.finditer(normalized):
+            value = m.group(0)
+            # A value the supervisor has approved (PRD 0062) is no longer a
+            # block — keep scanning so a second, un-approved token in the
+            # same request is still caught.
+            if safe_tokens is not None and value in safe_tokens:
+                continue
             return ScanResult(
                 severity="block",
                 reason=f"{name} found in {location}",
                 location=location,
-                context=_snippet(text, m.start(), m.end()),
+                context=_snippet(normalized, m.start(), m.end()),
+                matched=value,
             )
     return None
 
@@ -96,24 +110,46 @@ def redact_tokens(
     text: str,
     *,
     env: typing.Mapping[str, str] | None = None,
+    sensitive_prefixes: tuple[str, ...] = ("EGRESS_TOKEN_",),
 ) -> str:
     """Replace token pattern matches and (if env given) provisioned secrets with REDACT."""
     for _, pattern in TOKEN_PATTERNS:
         text = pattern.sub(REDACT, text)
     if env is not None:
         for key, value in env.items():
-            if key.startswith("EGRESS_TOKEN_") and value:
+            if any(key.startswith(p) for p in sensitive_prefixes) and value:
                 for variant in _encoded_variants(value):
                     text = text.replace(variant, REDACT)
     return text
 
 
 # ---------------------------------------------------------------------------
-# Known secrets detector (Phase 1b)
+# Known secrets detector
 # ---------------------------------------------------------------------------
 
+# Encoded-variant cache. Provisioned secrets are stable for the life of the
+# proxy, but `_encoded_variants` is on the per-request hot path — it runs for
+# every secret on every redaction and known-secret scan (host, path, each
+# header, body). Deriving the variant set is relatively expensive (gzip +
+# nine encodings), so memoize it per distinct secret. The proxy process
+# already holds these values in `os.environ`, so caching them here adds no
+# new exposure. The cache is bounded (lru_cache maxsize) so a long-lived
+# proxy that sees rotating secrets evicts the oldest rather than growing
+# without limit; 256 comfortably covers the EGRESS_TOKEN_* set in practice.
+_VARIANT_CACHE_MAXSIZE = 256
+
+
 def _encoded_variants(secret: str) -> list[str]:
-    """Return the secret plus common encoded variants for exfil detection."""
+    """Return the secret plus common encoded variants for exfil detection.
+
+    The variant set is computed once per distinct secret and cached; callers
+    get a fresh list so they can't mutate the shared cached tuple."""
+    return list(_compute_encoded_variants(secret))
+
+
+@functools.lru_cache(maxsize=_VARIANT_CACHE_MAXSIZE)
+def _compute_encoded_variants(secret: str) -> tuple[str, ...]:
+    """Derive the secret plus its encoded variants (memoized, bounded)."""
     seen: set[str] = {secret}
     variants: list[str] = [secret]
 
@@ -147,7 +183,52 @@ def _encoded_variants(secret: str) -> list[str]:
     # gzip + base64 (deterministic: mtime=0); recognisable by H4sI prefix
     _add(base64.b64encode(gzip.compress(secret_bytes, mtime=0)).decode("ascii"))
 
-    return variants
+    return tuple(variants)
+
+
+# ---------------------------------------------------------------------------
+# Fragmentation-resistant helpers
+# ---------------------------------------------------------------------------
+
+# Minimum length of alnum projection for projection-based checks to run.
+# Short secrets produce too many false positives in projection space.
+_ALNUM_MIN_LEN = 8
+
+# Minimum window length for the partial-substring sliding scan.
+PARTIAL_MATCH_MIN_LEN = 12
+
+
+def _alnum_projection(text: str) -> str:
+    """Return text with every non-alphanumeric character stripped.
+
+    Used for fragmentation-resistant matching: separator-injected secrets
+    (spaces, hyphens, dots inserted between characters) are identical to
+    their originals in alnum projection space.
+    """
+    return "".join(c for c in text if c.isalnum())
+
+
+def _find_partial_window(secret_alnum: str, text_alnum: str, min_len: int) -> int | None:
+    """Return the earliest position in text_alnum holding a min_len-char window
+    that also appears in secret_alnum, or None.
+
+    The secret's set of min_len-grams is small (bounded by the secret length),
+    so building it once and sweeping the text a single time is O(len(text))
+    rather than the O(len(secret) * len(text)) of repeated substring searches —
+    which matters because this runs per provisioned secret on every request
+    body. Coverage is unchanged: a hit still means at least min_len consecutive
+    alphanumeric characters of the secret leaked into the text.
+    """
+    if len(secret_alnum) < min_len or len(text_alnum) < min_len:
+        return None
+    secret_grams = {
+        secret_alnum[i:i + min_len]
+        for i in range(len(secret_alnum) - min_len + 1)
+    }
+    for pos in range(len(text_alnum) - min_len + 1):
+        if text_alnum[pos:pos + min_len] in secret_grams:
+            return pos
+    return None
 
 
 def scan_known_secrets(
@@ -155,21 +236,135 @@ def scan_known_secrets(
     *,
     location: str = "body",
     env: typing.Mapping[str, str] | None = None,
+    sensitive_prefixes: tuple[str, ...] = ("EGRESS_TOKEN_",),
+    safe_tokens: typing.AbstractSet[str] | None = None,
 ) -> ScanResult | None:
     if env is None:
         return None
+
+    # Pre-compute alnum projection of the scan text once; reused per secret.
+    text_alnum: str | None = None
+
     for key, value in env.items():
-        if not key.startswith("EGRESS_TOKEN_") or not value:
+        if not any(key.startswith(p) for p in sensitive_prefixes) or not value:
             continue
+
+        # Pass 1: exact match across encoded variants (original behaviour).
+        approved_exact = False
         for variant in _encoded_variants(value):
             pos = text.find(variant)
             if pos >= 0:
+                # The supervisor approves the exact encoded variant found
+                # (PRD 0062); a different encoding of the same secret is a
+                # fresh block.
+                if safe_tokens is not None and variant in safe_tokens:
+                    approved_exact = True
+                    continue
                 return ScanResult(
                     severity="block",
                     reason=f"provisioned secret from {key} found in {location}",
                     location=location,
                     context=_snippet(text, pos, pos + len(variant)),
+                    matched=variant,
                 )
+        if approved_exact:
+            # Exact match was found and approved; projection passes would
+            # fire on the same value, so skip them for this secret.
+            continue
+
+        # Pass 2 & 3: fragmentation-resistant projection checks.
+        secret_alnum = _alnum_projection(value)
+        if len(secret_alnum) < _ALNUM_MIN_LEN:
+            continue
+
+        if text_alnum is None:
+            text_alnum = _alnum_projection(text)
+
+        # Pass 2: full alnum-projection exact match (catches separator injection).
+        pos2 = text_alnum.find(secret_alnum)
+        if pos2 >= 0:
+            return ScanResult(
+                severity="block",
+                reason=(
+                    f"provisioned secret from {key} found in {location} "
+                    f"(fragmented match — separator injection)"
+                ),
+                location=location,
+                context=_snippet(text_alnum, pos2, pos2 + len(secret_alnum)),
+            )
+
+        # Pass 3: sliding-window partial match (catches chunked-substring leaks).
+        pos3 = _find_partial_window(secret_alnum, text_alnum, PARTIAL_MATCH_MIN_LEN)
+        if pos3 is not None:
+            return ScanResult(
+                severity="block",
+                reason=(
+                    f"provisioned secret from {key} found in {location} "
+                    f"(partial match — at least {PARTIAL_MATCH_MIN_LEN} consecutive "
+                    f"alphanumeric chars)"
+                ),
+                location=location,
+                context=_snippet(text_alnum, pos3, pos3 + PARTIAL_MATCH_MIN_LEN),
+            )
+
+    return None
+
+
+# ---------------------------------------------------------------------------
+# Entropy detector (warn-only)
+# ---------------------------------------------------------------------------
+
+# Sliding window size and step for the entropy scan.
+ENTROPY_WINDOW = 64
+ENTROPY_STEP = 32
+
+# Bits-per-character threshold.  Random ASCII printable ≈ 6.6 bits; random
+# lowercase hex ≈ 4 bits; random base64url ≈ 6 bits.  5.5 sits above
+# typical structured data (JSON, URLs) while staying below truly random
+# content.
+ENTROPY_BLOCK_THRESHOLD = 5.5
+
+
+def _shannon_entropy(text: str) -> float:
+    if not text:
+        return 0.0
+    counts = Counter(text)
+    n = len(text)
+    return -sum((c / n) * log2(c / n) for c in counts.values())
+
+
+def scan_entropy(
+    text: str,
+    *,
+    location: str = "body",
+    window: int = ENTROPY_WINDOW,
+    threshold: float = ENTROPY_BLOCK_THRESHOLD,
+) -> ScanResult | None:
+    """Warn-only detector: flag windows of `window` chars with Shannon entropy
+    above `threshold` bits per character.
+
+    Never blocks; always returns severity='warn'.  Disabled by default —
+    routes must opt in via dlp.outbound_detectors=['entropy'].
+    """
+    if not text:
+        return None
+    step = max(1, window // 2)
+    end = len(text)
+    # Scan overlapping windows; also check the final tail if shorter than window.
+    positions = list(range(0, end - window + 1, step))
+    if end < window:
+        positions = [0]
+    elif (end - window) % step != 0:
+        positions.append(end - window)
+    for i in positions:
+        chunk = text[i:i + window]
+        if _shannon_entropy(chunk) >= threshold:
+            return ScanResult(
+                severity="warn",
+                reason=f"high-entropy content in {location} (possible encrypted exfil)",
+                location=location,
+                context=_snippet(text, i, i + len(chunk)),
+            )
     return None
 
 
@@ -197,19 +392,52 @@ JAILBREAK_PHRASES: tuple[re.Pattern[str], ...] = (
 PROXIMITY_CHARS = 500
 
 
+def _match_gap(a: re.Match[str], b: re.Match[str]) -> int:
+    """Character gap between two match spans; 0 when they overlap or touch."""
+    return max(0, max(a.start(), b.start()) - min(a.end(), b.end()))
+
+
 def _closest_pair(
     a_matches: list[re.Match[str]],
     b_matches: list[re.Match[str]],
+    *,
+    within: int | None = None,
 ) -> tuple[re.Match[str], re.Match[str]] | None:
-    """Return the pair (a, b) with the smallest character gap, or None."""
+    """Return the (a, b) pair with the smallest character gap, or None when
+    either list is empty.
+
+    Runs in O(n log n) sort + O(n) merge rather than the O(n*m) cross product:
+    both lists are sorted by start offset and swept with a two-pointer merge,
+    advancing whichever span ends first (it can only get farther from any
+    later span in the other list). This matters because the inputs are
+    attacker-controlled response-body matches that have already passed the
+    body-size cap, so the quadratic form is a latent DoS.
+
+    When `within` is set, returns as soon as a pair with gap <= within is
+    found: the only caller blocks on any pair inside the proximity threshold,
+    so the exact global minimum past that point doesn't change the decision.
+    """
+    if not a_matches or not b_matches:
+        return None
+    a_sorted = sorted(a_matches, key=lambda m: m.start())
+    b_sorted = sorted(b_matches, key=lambda m: m.start())
+    i = j = 0
     best: tuple[re.Match[str], re.Match[str]] | None = None
     best_gap: int | None = None
-    for a in a_matches:
-        for b in b_matches:
-            gap = max(0, max(a.start(), b.start()) - min(a.end(), b.end()))
-            if best_gap is None or gap < best_gap:
-                best_gap = gap
-                best = (a, b)
+    while i < len(a_sorted) and j < len(b_sorted):
+        a, b = a_sorted[i], b_sorted[j]
+        gap = _match_gap(a, b)
+        if best_gap is None or gap < best_gap:
+            best_gap = gap
+            best = (a, b)
+            if within is not None and gap <= within:
+                return best
+        # Advance the span that ends first; it cannot form a closer pair with
+        # any later (further-right) span from the other list.
+        if a.end() <= b.end():
+            i += 1
+        else:
+            j += 1
     return best
 
 
@@ -219,9 +447,9 @@ def scan_naive_injection(text: str) -> ScanResult | None:
     jailbreak_hits = [m for p in JAILBREAK_PHRASES for m in p.finditer(text)]
 
     if disclosure_hits and jailbreak_hits:
-        pair = _closest_pair(disclosure_hits, jailbreak_hits)
+        pair = _closest_pair(disclosure_hits, jailbreak_hits, within=PROXIMITY_CHARS)
         if pair is not None:
-            dist = max(0, max(pair[0].start(), pair[1].start()) - min(pair[0].end(), pair[1].end()))
+            dist = _match_gap(pair[0], pair[1])
             if dist <= PROXIMITY_CHARS:
                 first = pair[0] if pair[0].start() <= pair[1].start() else pair[1]
                 return ScanResult(
@@ -265,6 +493,14 @@ _CRLF_ENCODED_RE = re.compile(r"%0[dD]%0[aA]", re.ASCII)
 _CRLF_HEADER_INJECT_RE = re.compile(r"\r\n[A-Za-z][A-Za-z0-9\-]+\s*:", re.ASCII)
 
 
+def strip_crlf(text: str) -> str:
+    """Remove URL-encoded and literal CRLF injection sequences from a request
+    surface (PRD 0062 redact policy). Used to scrub the request line / headers
+    so the request can be forwarded instead of hard-blocked."""
+    text = _CRLF_ENCODED_RE.sub("", text)
+    return _CRLF_HEADER_INJECT_RE.sub(lambda m: m.group(0)[2:], text)
+
+
 def scan_crlf_injection(text: str) -> ScanResult | None:
     if _CRLF_ENCODED_RE.search(text):
         return ScanResult(
@@ -280,12 +516,20 @@ def scan_crlf_injection(text: str) -> ScanResult | None:
 
 
 __all__ = [
+    "ENTROPY_BLOCK_THRESHOLD",
+    "ENTROPY_WINDOW",
+    "ENTROPY_STEP",
+    "PARTIAL_MATCH_MIN_LEN",
     "REDACT",
     "SNIPPET_CONTEXT",
     "TOKEN_PATTERNS",
+    "_alnum_projection",
+    "_shannon_entropy",
     "redact_tokens",
     "scan_crlf_injection",
+    "scan_entropy",
     "scan_known_secrets",
     "scan_naive_injection",
     "scan_token_patterns",
+    "strip_crlf",
 ]

bot_bottle/egress.py

@@ -10,27 +10,75 @@ specific and lives on concrete subclasses (see
 from __future__ import annotations
 
 import dataclasses
+import secrets
 from abc import ABC
 from dataclasses import dataclass
 from pathlib import Path
 from typing import TYPE_CHECKING
 
 from .egress_addon_core import (
+    ON_MATCH_REDACT,
     HeaderMatch as CoreHeaderMatch,
     MatchEntry as CoreMatchEntry,
     PathMatch as CorePathMatch,
     Route,
 )
+from .errors import MissingEnvVarError
 from .log import die
 
 if TYPE_CHECKING:
-    from .manifest import Bottle
+    from .manifest import ManifestBottle
 
 CODEX_HOST_CREDENTIAL_TOKEN_REF = "BOT_BOTTLE_CODEX_HOST_ACCESS_TOKEN"
 
 EGRESS_HOSTNAME = "egress"
 
 EGRESS_ROUTES_IN_CONTAINER = "/etc/egress/routes.yaml"
+EGRESS_ROUTES_FILENAME = Path(EGRESS_ROUTES_IN_CONTAINER).name
+
+_CANARY_ENV_WORDS = (
+    "ACCORD",
+    "ANCHOR",
+    "ATLAS",
+    "CANON",
+    "CIPHER",
+    "EMBER",
+    "FALCON",
+    "HARBOR",
+    "LANTERN",
+    "MARBLE",
+    "NOVA",
+    "ORBIT",
+    "PIVOT",
+    "RADIUS",
+    "SUMMIT",
+    "VECTOR",
+)
+
+
+def _random_canary_env() -> str:
+    first = secrets.choice(_CANARY_ENV_WORDS)
+    remaining = tuple(word for word in _CANARY_ENV_WORDS if word != first)
+    second = secrets.choice(remaining)
+    return f"{first}_{second}_SECRET"
+
+
+def egress_sidecar_env_entries(plan: "EgressPlan") -> tuple[str, ...]:
+    """Return sidecar env entries needed by egress across all backends."""
+    env: list[str] = []
+    if plan.routes:
+        env.extend(sorted(plan.token_env_map.keys()))
+    if plan.canary and plan.canary_env:
+        env.append(f"{plan.canary_env}={plan.canary}")
+        env.append(f"BOT_BOTTLE_SENSITIVE_PREFIXES={plan.canary_env}")
+    return tuple(env)
+
+
+def egress_agent_env_entries(plan: "EgressPlan") -> tuple[str, ...]:
+    """Return agent-visible egress env entries shared by all backends."""
+    if plan.canary and plan.canary_env:
+        return (f"{plan.canary_env}={plan.canary}",)
+    return ()
 
 
 @dataclass(frozen=True)
@@ -63,10 +111,12 @@ class EgressPlan:
     mitmproxy_ca_host_path: Path = Path()
     mitmproxy_ca_cert_only_host_path: Path = Path()
     log: int = 0
+    canary: str = ""
+    canary_env: str = ""
 
 
 def egress_manifest_routes(
-    bottle: Bottle,
+    bottle: ManifestBottle,
 ) -> tuple[EgressRoute, ...]:
     out: list[EgressRoute] = []
     for r in bottle.egress.routes:
@@ -91,24 +141,41 @@ def egress_manifest_routes(
             auth_scheme=r.AuthScheme,
             token_ref=r.TokenRef,
             roles=r.Role,
+            git_fetch=r.GitFetch,
             outbound_detectors=r.OutboundDetectors,
             inbound_detectors=r.InboundDetectors,
+            outbound_on_match=r.OutboundOnMatch,
         ))
     return tuple(out)
 
 
 def egress_routes_for_bottle(
-    bottle: Bottle,
+    bottle: ManifestBottle,
     provider_routes: tuple[EgressRoute, ...] = (),
 ) -> tuple[EgressRoute, ...]:
     manifest = egress_manifest_routes(bottle)
     provisioned_hosts = {pr.host.lower() for pr in provider_routes}
-    merged = list(provider_routes) + [
+    merged = list(_default_provider_on_match(provider_routes)) + [
         r for r in manifest if r.host.lower() not in provisioned_hosts
     ]
     return _assign_token_slots(merged)
 
 
+def _default_provider_on_match(
+    provider_routes: tuple[EgressRoute, ...],
+) -> tuple[EgressRoute, ...]:
+    """Provider routes (the agent talking to its own LLM API) default to the
+    `redact` on-match policy (PRD 0062): high-volume conversation payloads are
+    the worst source of token-shaped false positives, so a match is scrubbed
+    and forwarded rather than hard-blocked or queued for the operator. A
+    provider that sets `outbound_on_match` explicitly keeps its choice."""
+    return tuple(
+        r if r.outbound_on_match
+        else dataclasses.replace(r, outbound_on_match=ON_MATCH_REDACT)
+        for r in provider_routes
+    )
+
+
 def _assign_token_slots(
     routes: list[EgressRoute],
 ) -> tuple[EgressRoute, ...]:
@@ -144,6 +211,17 @@ def egress_token_env_map(
     return out
 
 
+def _yaml_str_escape(s: str) -> str:
+    """Escape a string for use inside a YAML double-quoted scalar."""
+    return (
+        s.replace("\\", "\\\\")
+         .replace('"', '\\"')
+         .replace("\n", "\\n")
+         .replace("\r", "\\r")
+         .replace("\t", "\\t")
+    )
+
+
 def _route_to_yaml_fields(r: Route) -> dict[str, object]:
     fields: dict[str, object] = {"host": r.host}
     if r.auth_scheme and r.token_env:
@@ -173,7 +251,13 @@ def _route_to_yaml_fields(r: Route) -> dict[str, object]:
                 entry_data["headers"] = headers_data
             matches_data.append(entry_data)
         fields["matches"] = matches_data
-    if r.outbound_detectors is not None or r.inbound_detectors is not None:
+    if r.git_fetch:
+        fields["git"] = {"fetch": True}
+    if (
+        r.outbound_detectors is not None
+        or r.inbound_detectors is not None
+        or r.outbound_on_match
+    ):
         dlp: dict[str, object] = {}
         if r.outbound_detectors is not None:
             dlp["outbound_detectors"] = (
@@ -185,6 +269,8 @@ def _route_to_yaml_fields(r: Route) -> dict[str, object]:
                 False if not r.inbound_detectors
                 else list(r.inbound_detectors)
             )
+        if r.outbound_on_match:
+            dlp["outbound_on_match"] = r.outbound_on_match
         fields["dlp"] = dlp
     return fields
 
@@ -198,12 +284,12 @@ def _render_match_entry(entry: dict[str, object]) -> list[str]:
         for pd in entry["paths"]:  # type: ignore[union-attr]
             pd_dict: dict[str, str] = pd  # type: ignore[assignment]
             if "type" in pd_dict:
-                lines.append(f'          - type: "{pd_dict["type"]}"')
-                lines.append(f'            value: "{pd_dict["value"]}"')
+                lines.append(f'          - type: "{_yaml_str_escape(pd_dict["type"])}"')
+                lines.append(f'            value: "{_yaml_str_escape(pd_dict["value"])}"')
             else:
-                lines.append(f'          - value: "{pd_dict["value"]}"')
+                lines.append(f'          - value: "{_yaml_str_escape(pd_dict["value"])}"')
     if "methods" in entry:
-        methods_str = ", ".join(f'"{m}"' for m in entry["methods"])  # type: ignore[union-attr]
+        methods_str = ", ".join(f'"{_yaml_str_escape(m)}"' for m in entry["methods"])  # type: ignore[union-attr]
         prefix = "      - " if first_key else "        "
         lines.append(f'{prefix}methods: [{methods_str}]')
         first_key = False
@@ -213,8 +299,8 @@ def _render_match_entry(entry: dict[str, object]) -> list[str]:
         first_key = False
         for hd in entry["headers"]:  # type: ignore[union-attr]
             hd_dict: dict[str, str] = hd  # type: ignore[assignment]
-            lines.append(f'          - name: "{hd_dict["name"]}"')
-            lines.append(f'            value: "{hd_dict["value"]}"')
+            lines.append(f'          - name: "{_yaml_str_escape(hd_dict["name"])}"')
+            lines.append(f'            value: "{_yaml_str_escape(hd_dict["value"])}"')
     if first_key:
         lines.append("      - {}")
     return lines
@@ -234,14 +320,19 @@ def egress_render_routes(
         return "\n".join(lines) + "\n"
     for r in routes:
         f = _route_to_yaml_fields(r)
-        lines.append(f'  - host: "{f["host"]}"')
+        lines.append(f'  - host: "{_yaml_str_escape(str(f["host"]))}"')
         if "auth_scheme" in f:
-            lines.append(f'    auth_scheme: "{f["auth_scheme"]}"')
-            lines.append(f'    token_env: "{f["token_env"]}"')
+            lines.append(f'    auth_scheme: "{_yaml_str_escape(str(f["auth_scheme"]))}"')
+            lines.append(f'    token_env: "{_yaml_str_escape(str(f["token_env"]))}"')
         if "matches" in f:
             lines.append("    matches:")
             for entry in f["matches"]:  # type: ignore[union-attr]
                 lines.extend(_render_match_entry(entry))  # type: ignore[arg-type]
+        if "git" in f:
+            git_dict: dict[str, object] = f["git"]  # type: ignore
+            lines.append("    git:")
+            if git_dict.get("fetch") is True:
+                lines.append("      fetch: true")
         if "dlp" in f:
             dlp_dict: dict[str, object] = f["dlp"]  # type: ignore
             lines.append("    dlp:")
@@ -251,6 +342,8 @@ def egress_render_routes(
                 elif isinstance(dv, list):
                     items_str = ", ".join(f'"{x}"' for x in dv)
                     lines.append(f"      {dk}: [{items_str}]")
+                elif isinstance(dv, str):
+                    lines.append(f'      {dk}: "{_yaml_str_escape(dv)}"')
     return "\n".join(lines) + "\n"
 
 
@@ -262,16 +355,18 @@ def egress_resolve_token_values(
     for token_env, token_ref in token_env_map.items():
         value = host_env.get(token_ref)
         if value is None:
-            die(
+            raise MissingEnvVarError(
+                token_ref,
                 f"egress: host env var '{token_ref}' is unset. Set it "
                 f"before launching, or remove the corresponding auth block "
-                f"from bottle.egress.routes."
+                f"from bottle.egress.routes.",
             )
         if not value:
-            die(
+            raise MissingEnvVarError(
+                token_ref,
                 f"egress: host env var '{token_ref}' is empty. The "
                 f"egress will not inject an empty token; set it to "
-                f"the real value or remove the route's auth block."
+                f"the real value or remove the route's auth block.",
             )
         out[token_env] = value
     return out
@@ -280,27 +375,34 @@ def egress_resolve_token_values(
 class Egress(ABC):
     def prepare(
         self,
-        bottle: Bottle,
+        bottle: ManifestBottle,
         slug: str,
         stage_dir: Path,
         provider_routes: tuple[EgressRoute, ...] = (),
     ) -> EgressPlan:
         routes = egress_routes_for_bottle(bottle, provider_routes)
         log = bottle.egress.Log
-        routes_path = stage_dir / "egress_routes.yaml"
+        routes_path = stage_dir / EGRESS_ROUTES_FILENAME
         routes_path.write_text(egress_render_routes(routes, log=log))
         routes_path.chmod(0o600)
+        # Generate a per-session fake secret under a plausible random env name.
+        # The sidecar marks that exact env name as sensitive for known-secret
+        # scanning; the agent receives the same name/value as exfil bait.
+        canary = secrets.token_urlsafe(32)
         return EgressPlan(
             slug=slug,
             routes_path=routes_path,
             routes=routes,
             token_env_map=egress_token_env_map(routes),
             log=log,
+            canary=canary,
+            canary_env=_random_canary_env(),
         )
 
 __all__ = [
     "CODEX_HOST_CREDENTIAL_TOKEN_REF",
     "EGRESS_HOSTNAME",
+    "EGRESS_ROUTES_FILENAME",
     "EGRESS_ROUTES_IN_CONTAINER",
     "Egress",
     "EgressPlan",
@@ -309,5 +411,7 @@ __all__ = [
     "egress_render_routes",
     "egress_resolve_token_values",
     "egress_routes_for_bottle",
+    "egress_agent_env_entries",
+    "egress_sidecar_env_entries",
     "egress_token_env_map",
 ]

bot_bottle/egress_addon.py

@@ -5,7 +5,7 @@ egress container."""
 
 from __future__ import annotations
 
-import dataclasses
+import asyncio
 import json
 import os
 import signal
@@ -17,35 +17,76 @@ from mitmproxy import http  # type: ignore[import-not-found]  # pylint: disable=
 from egress_addon_core import (  # type: ignore[import-not-found]  # pylint: disable=import-error
     LOG_BLOCKS,
     LOG_FULL,
+    DEFAULT_OUTBOUND_ON_MATCH,
+    ON_MATCH_BLOCK,
+    ON_MATCH_REDACT,
     Config,
+    Route,
+    ScanResult,
     build_inbound_scan_text,
     build_outbound_scan_text,
+    build_token_allow_payload,
     decide,
+    decide_git_fetch,
+    is_git_fetch_request,
     is_git_push_request,
     load_config,
     match_route,
+    outbound_scan_headers,
+    route_to_yaml_dict,
     scan_inbound,
     scan_outbound,
 )
 
 try:
-    from dlp_detectors import redact_tokens  # type: ignore[import-not-found]
+    from dlp_detectors import redact_tokens, strip_crlf  # type: ignore[import-not-found]
 except ImportError:  # pragma: no cover - host-side path
-    from bot_bottle.dlp_detectors import redact_tokens  # type: ignore[import-not-found]
+    from bot_bottle.dlp_detectors import (  # type: ignore[import-not-found]
+        redact_tokens,
+        strip_crlf,
+    )
+
+try:
+    import supervise as _sv  # type: ignore[import-not-found]
+except ImportError:  # pragma: no cover - host-side path
+    from bot_bottle import supervise as _sv  # type: ignore[import-not-found]
 
 
 DEFAULT_ROUTES_PATH = "/etc/egress/routes.yaml"
 
 INTROSPECT_HOST = "_egress.local"
 
+# Seconds the egress proxy holds a token-blocked request open waiting for the
+# operator's supervisor decision (PRD 0062), overridable via env.
+DEFAULT_TOKEN_ALLOW_TIMEOUT_SECONDS = 300.0
+# Filesystem poll cadence while awaiting the operator's response.
+TOKEN_ALLOW_POLL_INTERVAL_SECONDS = 0.5
+
+# Fixed operator guidance attached to every token-allow proposal.
+_TOKEN_ALLOW_JUSTIFICATION = (
+    "egress DLP blocked an outbound request carrying a detected token. "
+    "Approve only if this value is a false positive or a credential this "
+    "request legitimately needs; the value is then allowed for the life of "
+    "this bottle's egress proxy."
+)
+
 
 class EgressAddon:
     def __init__(self) -> None:
         self.routes_path = os.environ.get("EGRESS_ROUTES", DEFAULT_ROUTES_PATH)
         self.config: Config = Config(routes=())
+        # Tokens the operator has approved this session (PRD 0062). In-memory
+        # only — a restart re-prompts. Mutated only from the asyncio loop that
+        # runs the addon hooks, so no lock is needed.
+        self.safe_tokens: set[str] = set()
+        self._supervise_slug = os.environ.get("SUPERVISE_BOTTLE_SLUG", "").strip()
+        self._token_allow_timeout = _token_allow_timeout_from_env(os.environ)
         self._reload(initial=True)
         self._install_sighup()
 
+    def _supervise_available(self) -> bool:
+        return bool(self._supervise_slug)
+
     def _reload(self, *, initial: bool = False) -> None:
         try:
             text = Path(self.routes_path).read_text(encoding="utf-8")
@@ -79,7 +120,7 @@ class EgressAddon:
     def _serve_introspection(self, flow: http.HTTPFlow, path: str) -> None:
         if path == "/allowlist":
             payload = json.dumps(
-                {"routes": [dataclasses.asdict(r) for r in self.config.routes]},
+                {"routes": [route_to_yaml_dict(r) for r in self.config.routes]},
                 indent=2,
             ).encode("utf-8")
             flow.response = http.Response.make(
@@ -118,31 +159,42 @@ class EgressAddon:
         )
 
     def _log_request(self, flow: http.HTTPFlow) -> None:
+        headers = {
+            k: redact_tokens(v, env=os.environ)
+            for k, v in flow.request.headers.items()
+            if k.lower() != "authorization"
+        }
+        body = redact_tokens(flow.request.get_text(strict=False) or "", env=os.environ)
         sys.stderr.write(
             json.dumps({
                 "event": "egress_request",
                 "host": redact_tokens(flow.request.pretty_host, env=os.environ),
                 "method": flow.request.method,
                 "path": redact_tokens(flow.request.path, env=os.environ),
-                "headers": dict(flow.request.headers),
-                "body": flow.request.get_text(strict=False) or "",
+                "headers": headers,
+                "body": body,
             })
             + "\n"
         )
 
     def _log_response(self, flow: http.HTTPFlow) -> None:
+        headers = {
+            k: redact_tokens(v, env=os.environ)
+            for k, v in flow.response.headers.items()
+        }
+        body = redact_tokens(flow.response.get_text(strict=False) or "", env=os.environ)
         sys.stderr.write(
             json.dumps({
                 "event": "egress_response",
                 "host": flow.request.pretty_host,
                 "status": flow.response.status_code,
-                "headers": dict(flow.response.headers),
-                "body": flow.response.get_text(strict=False) or "",
+                "headers": headers,
+                "body": body,
             })
             + "\n"
         )
 
-    def request(self, flow: http.HTTPFlow) -> None:
+    async def request(self, flow: http.HTTPFlow) -> None:
         request_path, _, query = flow.request.path.partition("?")
 
         if flow.request.pretty_host == INTROSPECT_HOST:
@@ -154,21 +206,11 @@ class EgressAddon:
         # Hostname is included to catch DNS-tunnelling exfiltration attempts.
         route = match_route(self.config.routes, flow.request.pretty_host)
         if route is not None:
-            body = flow.request.get_text(strict=False) or ""
-            scan_text = build_outbound_scan_text(
-                flow.request.pretty_host,
-                request_path,
-                query,
-                dict(flow.request.headers),
-                body,
-            )
-            dlp_result = scan_outbound(route, scan_text, os.environ)
-            if dlp_result is not None and dlp_result.severity == "block":
-                ctx = self._req_ctx(flow)
-                if dlp_result.context:
-                    ctx = {**ctx, "context": dlp_result.context}
-                self._block(flow, f"egress DLP: {dlp_result.reason}", ctx=ctx)
+            if not await self._handle_outbound_dlp(flow, route):
                 return
+            # The redact policy may have rewritten the request line; recompute
+            # the path/query the git checks below rely on.
+            request_path, _, query = flow.request.path.partition("?")
 
         if is_git_push_request(request_path, query):
             self._block(
@@ -180,6 +222,18 @@ class EgressAddon:
             )
             return
 
+        if is_git_fetch_request(request_path, query):
+            git_decision = decide_git_fetch(
+                self.config.routes, flow.request.pretty_host,
+            )
+            if git_decision.action == "block":
+                self._block(
+                    flow,
+                    git_decision.reason,
+                    ctx=self._req_ctx(flow),
+                )
+                return
+
         # Strip agent-set Authorization after DLP scan so smuggled tokens
         # are caught above; the route may inject sidecar-owned auth below.
         flow.request.headers.pop("authorization", None)
@@ -206,6 +260,200 @@ class EgressAddon:
         if self.config.log >= LOG_FULL:
             self._log_request(flow)
 
+    def _block_dlp(self, flow: http.HTTPFlow, result: ScanResult) -> None:
+        ctx = self._req_ctx(flow)
+        if result.context:
+            ctx = {**ctx, "context": result.context}
+        self._block(flow, f"egress DLP: {result.reason}", ctx=ctx)
+
+    async def _handle_outbound_dlp(
+        self,
+        flow: http.HTTPFlow,
+        route: Route,
+    ) -> bool:
+        """Scan the outbound request and apply the route's on-match policy
+        (PRD 0062). Returns True if the request may be forwarded, False if a
+        403 response has been written to `flow`.
+
+        Loops so the supervise policy can re-scan after each approval — a
+        second, un-approved token in the same request is still caught."""
+        while True:
+            request_path, _, query = flow.request.path.partition("?")
+            body = flow.request.get_text(strict=False) or ""
+            headers = outbound_scan_headers(route, dict(flow.request.headers))
+            scan_text = build_outbound_scan_text(
+                flow.request.pretty_host, request_path, query, headers, body,
+            )
+            # CRLF is scanned only over the request line + headers, never the
+            # body (see scan_outbound) — a body is not an injection vector.
+            crlf_text = build_outbound_scan_text(
+                flow.request.pretty_host, request_path, query, headers, "",
+            )
+            result = scan_outbound(
+                route, scan_text, os.environ,
+                safe_tokens=self.safe_tokens, crlf_text=crlf_text,
+            )
+            if result is None or result.severity != "block":
+                return True
+
+            policy = route.outbound_on_match or DEFAULT_OUTBOUND_ON_MATCH
+
+            # redact scrubs every detection (tokens and structural CRLF) and
+            # forwards; it fails closed only if a match survives the scrub.
+            if policy == ON_MATCH_REDACT:
+                if self._redact_outbound(flow, route):
+                    if self.config.log >= LOG_BLOCKS:
+                        sys.stderr.write(json.dumps({
+                            "event": "egress_redacted",
+                            "reason": f"egress DLP: {result.reason}",
+                            **self._req_ctx(flow),
+                        }) + "\n")
+                    return True
+                self._block(
+                    flow,
+                    f"egress DLP: {result.reason}; redaction could not remove "
+                    "all matches (e.g. a match in the hostname)",
+                    ctx=self._req_ctx(flow),
+                )
+                return False
+
+            # Structural blocks (CRLF, no safelist-able value) cannot be
+            # supervised — there is nothing to approve and remember — so under
+            # block/supervise they are a hard 403.
+            if policy == ON_MATCH_BLOCK or not result.matched:
+                self._block_dlp(flow, result)
+                return False
+
+            # supervise (default): hold the request for operator approval.
+            # Fall back to a hard 403 when supervise isn't wired for the bottle.
+            if not self._supervise_available():
+                self._block_dlp(flow, result)
+                return False
+            approved = await self._supervise_token_block(flow, request_path, result)
+            if not approved:
+                return False  # _supervise_token_block wrote the 403 response
+            # loop: the approved value is now in safe_tokens; re-scan.
+
+    def _redact_outbound(self, flow: http.HTTPFlow, route: Route) -> bool:
+        """Scrub detected tokens (and CRLF injection sequences) from the mutable
+        request surfaces (body, headers, path/query) and re-scan. Returns True
+        if the request is now clean; False if a block-severity match remains on
+        a surface redaction cannot rewrite (the hostname) so the caller fails
+        closed."""
+        body = flow.request.get_text(strict=False)
+        if body:
+            redacted_body = redact_tokens(body, env=os.environ)
+            if redacted_body != body:
+                flow.request.text = redacted_body
+        for name, value in list(flow.request.headers.items()):
+            if name.lower() == "host":
+                continue  # routing-critical; never a legitimate token
+            redacted = strip_crlf(redact_tokens(value, env=os.environ))
+            if redacted != value:
+                flow.request.headers[name] = redacted
+        redacted_path = strip_crlf(redact_tokens(flow.request.path, env=os.environ))
+        if redacted_path != flow.request.path:
+            flow.request.path = redacted_path
+
+        request_path, _, query = flow.request.path.partition("?")
+        new_body = flow.request.get_text(strict=False) or ""
+        headers = outbound_scan_headers(route, dict(flow.request.headers))
+        scan_text = build_outbound_scan_text(
+            flow.request.pretty_host, request_path, query, headers, new_body,
+        )
+        crlf_text = build_outbound_scan_text(
+            flow.request.pretty_host, request_path, query, headers, "",
+        )
+        result = scan_outbound(route, scan_text, os.environ, crlf_text=crlf_text)
+        return result is None or result.severity != "block"
+
+    async def _supervise_token_block(
+        self,
+        flow: http.HTTPFlow,
+        request_path: str,
+        result: ScanResult,
+    ) -> bool:
+        """Route a token DLP block to the operator's supervisor queue and wait.
+
+        Returns True if the operator approved (the matched value is added to
+        `self.safe_tokens` and the caller re-scans); False if the request must
+        be blocked (a 403 response has been written to `flow`)."""
+        host = flow.request.pretty_host
+        payload = build_token_allow_payload(
+            redact_tokens(host, env=os.environ),
+            flow.request.method,
+            redact_tokens(request_path, env=os.environ),
+            result,
+        )
+        proposal = _sv.Proposal.new(
+            bottle_slug=self._supervise_slug,
+            tool=_sv.TOOL_EGRESS_TOKEN_ALLOW,
+            proposed_file=payload,
+            justification=_TOKEN_ALLOW_JUSTIFICATION,
+            current_file_hash=_sv.sha256_hex(payload),
+        )
+        try:
+            _sv.write_proposal(proposal)
+        except OSError as e:
+            sys.stderr.write(
+                f"egress: could not queue token-allow proposal: {e}; "
+                "blocking request\n"
+            )
+            self._block(flow, f"egress DLP: {result.reason}", ctx=self._req_ctx(flow))
+            return False
+
+        sys.stderr.write(json.dumps({
+            "event": "egress_token_supervise",
+            "reason": f"egress DLP: {result.reason}",
+            "proposal": proposal.id,
+            **self._req_ctx(flow),
+        }) + "\n")
+
+        response = await self._await_token_response(proposal.id)
+        _sv.archive_proposal(self._supervise_slug, proposal.id)
+
+        if response is not None and response.status in (
+            _sv.STATUS_APPROVED, _sv.STATUS_MODIFIED,
+        ):
+            self.safe_tokens.add(result.matched)
+            if self.config.log >= LOG_BLOCKS:
+                sys.stderr.write(json.dumps({
+                    "event": "egress_token_allowed",
+                    "reason": f"egress DLP: {result.reason}",
+                    "proposal": proposal.id,
+                    **self._req_ctx(flow),
+                }) + "\n")
+            return True
+
+        if response is None:
+            reason = (
+                f"egress DLP: {result.reason}; supervisor approval timed out "
+                f"after {self._token_allow_timeout:g}s"
+            )
+        else:
+            reason = f"egress DLP: {result.reason}; supervisor rejected the request"
+        self._block(flow, reason, ctx=self._req_ctx(flow))
+        return False
+
+    async def _await_token_response(
+        self,
+        proposal_id: str,
+    ) -> "_sv.Response | None":
+        """Poll the DB for the operator's response without blocking the
+        proxy event loop. Returns the Response, or None on timeout."""
+        loop = asyncio.get_running_loop()
+        deadline = loop.time() + self._token_allow_timeout
+        while True:
+            try:
+                return _sv.read_response(self._supervise_slug, proposal_id)
+            except (OSError, ValueError, KeyError):
+                # Not written yet, or a partial/malformed write — retry until
+                # the deadline, then fail closed.
+                pass
+            if loop.time() >= deadline:
+                return None
+            await asyncio.sleep(TOKEN_ALLOW_POLL_INTERVAL_SECONDS)
+
     def response(self, flow: http.HTTPFlow) -> None:
         """DLP inbound scan on response headers and body."""
         route = match_route(self.config.routes, flow.request.pretty_host)
@@ -257,7 +505,12 @@ class EgressAddon:
         message = flow.websocket.messages[-1]  # type: ignore[union-attr]
         content = message.content.decode("utf-8", errors="replace")
         if message.from_client:
-            result = scan_outbound(route, content, os.environ)
+            # A WebSocket data frame is not an HTTP request line, so CRLF is
+            # not an injection vector here — scan only for credential leakage.
+            result = scan_outbound(
+                route, content, os.environ,
+                safe_tokens=self.safe_tokens, crlf_text="",
+            )
             if result is not None and result.severity == "block":
                 sys.stderr.write(f"egress DLP: {result.reason}\n")
                 flow.kill()  # type: ignore[union-attr]
@@ -271,4 +524,23 @@ class EgressAddon:
                     sys.stderr.write(f"egress DLP warn: {result.reason}\n")
 
 
+def _token_allow_timeout_from_env(env: "os._Environ[str]") -> float:
+    """Read EGRESS_TOKEN_ALLOW_TIMEOUT_SECONDS; fall back to the default on an
+    unset or invalid value (a bad value should not wedge egress at boot)."""
+    raw = env.get("EGRESS_TOKEN_ALLOW_TIMEOUT_SECONDS", "").strip()
+    if not raw:
+        return DEFAULT_TOKEN_ALLOW_TIMEOUT_SECONDS
+    try:
+        value = float(raw)
+    except ValueError:
+        value = 0.0
+    if value <= 0:
+        sys.stderr.write(
+            "egress: invalid EGRESS_TOKEN_ALLOW_TIMEOUT_SECONDS="
+            f"{raw!r}; using default {DEFAULT_TOKEN_ALLOW_TIMEOUT_SECONDS:g}s\n"
+        )
+        return DEFAULT_TOKEN_ALLOW_TIMEOUT_SECONDS
+    return value
+
+
 addons = [EgressAddon()]