After `x` stops a dashboard-owned bottle, slide focus to the
next agent in the agents pane (the one filling the stopped
row, or the new last row if the stopped was last) and respawn
the right pane with that agent's claude session via `--continue`.
If no agents remain, close the right pane via `tmux kill-pane`.
Two new helpers:
- `_tmux_close_right_pane(tmux_state)` — kills the tracked
pane (if it exists) and clears pane_id / slug.
- `_pick_next_after_stop(agents_before, selected_index,
stopped_slug)` — pure chooser returning (new_index, agent)
or None. Tested directly.
Outside tmux, only the selected_agent index slides; no
auto-attach (foreground handoff would take over the terminal,
disruptive). 485 unit tests pass (6 new for the pick helper).
PRD 0021 chunk 4 (final). Two adjustments to close the
split-pane loop:
1. `_stop_bottle_flow` clears `tmux_state['slug']` when the
stopped bottle was the right-pane occupant. The pane itself
stays in place (claude exits with "container not found");
the operator presses Enter on a different agent to
repurpose it via respawn-pane.
2. `_render` accepts `right_pane_slug` and marks the matching
agents-pane row with a `*` prefix + A_BOLD (when it's not
also the focused row — focused selection still wins for
visibility). Gives the operator a clear visual link
between which agent the dashboard says is "active right
now" and which one is visible to their right.
Wired through `_main_loop`: passes `tmux_state` to
`_stop_bottle_flow` on `x`, and `tmux_state.get('slug')` to
`_render` on every tick.
479 unit tests pass (1 new for the tmux_state-preservation
on non-owned stop). PRD 0021 implementation complete pending
merge.
PRD 0021 chunk 2. New tmux integration: when `\$TMUX` is set
and the operator presses Enter on a focused agent row, the
dashboard spawns / respawns the right pane with that bottle's
claude session instead of taking over the terminal via
curses.endwin.
Mechanics:
- `_in_tmux()` — true when `\$TMUX` is set.
- `_tmux_split_pane_create` — first attach: `tmux split-window
-h -P -F '#{pane_id}'` opens a right pane and prints its id
for tracking.
- `_tmux_respawn_pane` — subsequent attaches: `tmux
respawn-pane -k -t <id>` swaps the content without
re-splitting.
- `_tmux_pane_exists` — `tmux list-panes` check before
respawn so a manually-closed pane gracefully falls back to
a fresh split.
- `_attach_in_tmux` — owns the create-or-respawn state
machine, mutates `tmux_state` ({pane_id, slug}) so the
main loop tracks the right-pane occupant.
- `_attach_via_handoff` — the previous curses-endwin path,
extracted as the fallback when tmux is missing or fails.
- `_attach_to_bottle` dispatches: in tmux + state available →
`_attach_in_tmux`; otherwise → handoff.
Main loop gets `tmux_state: dict = {"pane_id": None, "slug":
None}`. Chunks 3 + 4 wire it through the new-agent flow and
the stop hook.
`FileNotFoundError`-safe `subprocess.run` calls around every
tmux invocation — a missing tmux binary cleanly falls back to
the handoff for that keypress. 478 unit tests pass (10 new
for the pure argv builders + `_claude_runtime_args`).
Final PRD 0020 chunk. `x` on a focused agents-pane row tears
down the selected bottle if the dashboard owns it (started via
the chunk-2 `n` flow): pops `(cm, bottle, identity)` from the
main loop's bottles map, snapshots the transcript best-effort,
calls `cm.__exit__(None, None, None)` to drive the existing
compose-down + network-remove sequence, then `settle_state` to
honor any pre-existing preserve marker.
On a non-owned slug (discovered via `list_active_slugs` but not
in the dashboard's bottles dict — i.e., previous-dashboard or
external `./cli.py start` bottle), `x` is a no-op with a status
hint pointing at `./cli.py cleanup`. Matches the PRD's
cross-dashboard re-attach model: the dashboard can re-attach
either kind, but can only tear down its own.
The PRD's chunk 5 ("quit-cleanup") is satisfied by the existing
no-op behavior of `q` — per the user's resolved-question
answer, quit leaves bottles running unchanged. No code change
needed for that.
Footer surfaces `[x] stop`. 465 unit tests pass (1 new for the
non-owned no-op path; the owned path is integration territory
because it drives a real compose-down).
PRD 0020 chunk 3. Enter on a focused agents-pane row drops to a
claude session inside the selected bottle. Works for both
dashboard-owned bottles (looks up the stored Bottle handle in
the main loop's `bottles` dict) and externally-discovered ones
(synthesizes a DockerBottle from the slug → `claude-bottle-<slug>`
container name).
For the synthesized path, the `--append-system-prompt-file`
target resolves via metadata.json + the manifest's agent prompt
if both can be read; otherwise the re-attach runs without the
flag (claude defaults to no system prompt, the bottle's other
state is untouched).
Shares the curses.endwin → attach → refresh handoff with the
chunk-2 new-agent flow via a new `_attach_to_bottle` helper.
Footer reshuffled to advertise `[Enter] view/attach`. 464 unit
tests pass (3 new for `_bottle_for_slug`).
PRD 0020 chunk 2. Pressing `n` opens a modal that lists every
agent from the manifest with `(N running)` suffixes for ones
that already have bottles up. Type to filter (substring,
case-insensitive); j/k or arrows to navigate; Enter to confirm;
Esc clears the filter on first press, exits the picker on the
second.
On confirmation, the dashboard runs:
- `prepare_with_preflight` from chunk 1 with curses-modal
render + prompt callables (the preflight modal centers the
plan summary + captures [y/N]).
- `backend.launch(plan).__enter__()` — enters but doesn't bind
the context to a `with`. The (cm, bottle, identity) tuple
lands in the main loop's `bottles` dict keyed by slug.
- `curses.endwin()` → `attach_claude(bottle)` → `stdscr.refresh()`
handoff. The agent's claude session takes over the terminal;
on exit the dashboard re-renders with the bottle now visible
in the agents pane.
Crucially the context manager is held alive in `bottles` — never
`__exit__`'d at quit. Chunk 4 will wire `x` to that exit; for
now bottles started from the dashboard stay running until
explicit cleanup. Matches the PRD's "q does not tear down"
decision.
Footer surfaces `[n] new agent`. 461 unit tests pass (8 new for
`_filter_agents` and `_running_counts`).
PRD 0019 chunk 4 (final). The `e` (routes edit) and `p` (pipelock
edit) keys now require an agent selection in the agents pane.
Pressing them with the proposals pane focused, with no active
agents, or with an out-of-range selection is a no-op with a
status hint ("no agent selected; Tab into the agents pane first").
The discover-and-prompt scaffolding inside
`_operator_edit_routes_flow` / `_operator_edit_allowlist_flow` /
`_operator_edit_flow` is gone. The flows now take an `ActiveAgent`
+ required-service name; they refuse with a clear message when
the bottle lacks the requested sidecar (e.g., `routes edit`
against a bottle with no `bottle.egress.routes` declared). The
`discover_egress_slugs` + `discover_pipelock_slugs` +
`_discover_active_with_service` helpers come out — they had no
remaining callers.
Footer now reads `[e/p] edit selected agent`.
PRD 0019 chunk 3. The TUI now has two focusable panes — proposals
and agents — and `Tab` toggles which one the `j/k`/arrow keys
move through.
Each pane keeps its own selection index. Switching panes doesn't
lose the position in the other; the cursor (`>` + reverse-video
row) appears only in the focused pane. The label line on each
pane shows "(focused)" when active.
Footer reshuffled: `[Tab] switch pane [j/k] move [Enter] view
[a/m/r] proposal [e/p] edit [q] quit`. When the agents pane is
focused and there's no status message to display, the idle
status line surfaces the currently-selected agent (or "[no
active agents]" / "[no agent selected]" fallbacks) so the
operator knows what an agent-scoped edit verb will target after
chunk 4 wires them up.
Proposal action keys (a/m/r/Enter) are gated on the proposals
pane being focused — pressing them with the agents pane focused
is a no-op. e/p still use the global discover-and-prompt flow
for one more chunk; chunk 4 swaps them to read the agents-pane
selection.
PRD 0019 chunk 2. The TUI's main render now draws two panes:
proposals on top (existing), active agents on the bottom (new).
Header counts both totals. The agents pane refreshes on the
same 1s tick — agents starting/stopping reflect without
operator action.
Each agent row shows slug, agent name, started-time (HH:MM:SS
of the metadata.json timestamp), and the bracketed list of
sidecars currently up. The `agent` service is filtered out of
the displayed list — it's always present so it'd be noise; the
sidecars are the differentiator. A bottle whose only running
service is `agent` (sidecars still warming up) renders as
`(starting)`.
No selection model yet — that's chunk 3. The cursor stays in
the proposals pane; `j/k`/arrow nav and the proposal action
keys are unchanged.
PRD 0019 chunk 1. New `discover_active_agents()` in dashboard.py
returns one `ActiveAgent(slug, agent_name, started_at, services)`
per currently-running compose project:
- Slugs come from `list_active_slugs()` (chunk-5 shared helper).
- The service set per project comes from ONE label-filtered
`docker ps` call (PRD open question #1: avoids N per-bottle
`compose ps` invocations on each 1s refresh tick).
- agent_name + started_at come from each bottle's
metadata.json; "?" / "" fallbacks when the file is missing
so the row renders rather than vanishes.
Not wired into the TUI yet — chunk 2 renders the agents pane.
The parser (`_parse_services_by_project`) is split out as a pure
function so the conditional-input shape can be unit-tested
without docker.
didericis