feat(pi): support egress injected api keys

bot_bottle/contrib/pi/agent_provider.py

@@ -32,7 +32,7 @@ if TYPE_CHECKING:
 
 _DEFAULT_BASE_URL = "http://ollama:11434/v1"
 _DEFAULT_MODEL = "qwen2.5-coder:7b"
-_PROVIDER_NAME = "ollama"
+_DEFAULT_PROVIDER_NAME = "ollama"
 
 
 def _skills_dir(guest_home: str) -> str:
@@ -56,10 +56,16 @@ def _settings_value(
     return default if value is None else value
 
 
-def _pi_models_json(settings: dict[str, object]) -> tuple[dict[str, object], str]:
+def _pi_models_json(
+    settings: dict[str, object],
+) -> tuple[dict[str, object], 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 = str(_settings_value(settings, "api_key", "ollama"))
+    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(
@@ -68,21 +74,27 @@ def _pi_models_json(settings: dict[str, object]) -> tuple[dict[str, object], str
     supports_reasoning_effort = bool(
         _settings_value(settings, "supports_reasoning_effort", False)
     )
+    provider: dict[str, object] = {
+        "baseUrl": base_url,
+        "api": api,
+        "compat": {
+            "supportsDeveloperRole": supports_developer_role,
+            "supportsReasoningEffort": supports_reasoning_effort,
+        },
+        "models": [{"id": model} 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_name: provider,
-                "baseUrl": base_url,
-                "api": api,
-                "apiKey": api_key,
-                "compat": {
-                    "supportsDeveloperRole": supports_developer_role,
-                    "supportsReasoningEffort": supports_reasoning_effort,
-                },
-                "models": [{"id": model} for model in models],
-            }
         }
     }
-    return payload, base_url
+    return payload, base_url, api_key_env
 
 
 def _route_host(base_url: str) -> str:
@@ -133,12 +145,13 @@ class PiAgentProvider(AgentProvider):
         guest_home = self.guest_home
         settings = dict(provider_settings or {})
 
-        models_payload, base_url = _pi_models_json(settings)
+        models_payload, base_url, api_key_env = _pi_models_json(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,
@@ -152,7 +165,11 @@ class PiAgentProvider(AgentProvider):
             has_prompt=has_prompt,
             dirs=(AgentProvisionDir(f"{guest_home}/.pi/agent"),),
             files=(AgentProvisionFile(models_file, _models_path(guest_home)),),
-            egress_routes=(EgressRoute(host=_route_host(base_url)),),
+            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:

bot_bottle/manifest_agent.py

@@ -206,9 +206,11 @@ def _parse_provider_settings(
         )
     settings = as_json_object(raw, f"bottle '{bottle_name}' agent_provider.settings")
     allowed = {
+        "provider",
         "base_url",
         "api",
         "api_key",
+        "api_key_env",
         "models",
         "supports_developer_role",
         "supports_reasoning_effort",
@@ -219,13 +221,18 @@ def _parse_provider_settings(
                 f"bottle '{bottle_name}' agent_provider.settings has unknown "
                 f"key {key!r}; allowed: {', '.join(sorted(allowed))}"
             )
-    for key in ("base_url", "api", "api_key"):
+    for key in ("provider", "base_url", "api", "api_key", "api_key_env"):
         value = settings.get(key)
         if value is not None and (not isinstance(value, str) or not value):
             raise ManifestError(
                 f"bottle '{bottle_name}' agent_provider.settings.{key} must "
                 "be a non-empty string"
             )
+    if settings.get("api_key") is not None and settings.get("api_key_env") is not None:
+        raise ManifestError(
+            f"bottle '{bottle_name}' agent_provider.settings may set either "
+            "api_key or api_key_env, not both"
+        )
     models = settings.get("models")
     if models is not None:
         if not isinstance(models, list) or not models:

docs/prds/0058-pi-agent-provider.md

@@ -13,8 +13,9 @@ provider settings file that targets an unauthenticated Ollama-compatible server.
 
 The default settings assume an Ollama server at `http://ollama:11434/v1`, using
 the `openai-completions` API with a dummy API key because Ollama ignores it.
-Users can override the base URL, model list, API key, API type, and compatibility
+Users can override the provider id, base URL, model list, API key, API-key env
-flags through a new `agent_provider.settings` object.
+reference, API type, and compatibility flags through a new
+`agent_provider.settings` object.
 
 ## Problem
 
@@ -60,8 +61,10 @@ supported for built-in `pi`.
 Supported keys:
 
 - `base_url`: string, defaults to `http://ollama:11434/v1`
+- `provider`: string, defaults to `ollama`
 - `api`: string, defaults to `openai-completions`
 - `api_key`: string, defaults to `ollama`
+- `api_key_env`: string, optional host env var name for egress auth injection
 - `models`: non-empty array of strings, defaults to `["qwen2.5-coder:7b"]`
 - `supports_developer_role`: boolean, defaults to `false`
 - `supports_reasoning_effort`: boolean, defaults to `false`
@@ -70,6 +73,15 @@ The snake-case manifest keys are converted into Pi's JSON field names:
 `baseUrl`, `apiKey`, `supportsDeveloperRole`, and
 `supportsReasoningEffort`.
 
+`api_key` and `api_key_env` are mutually exclusive. When targeting a hosted
+provider through bot-bottle's egress sidecar, omit `api_key` and set
+`api_key_env` to the host env var that holds the API key. The generated
+`models.json` receives only an `egress-placeholder` API key, and the egress
+route injects the real `Authorization` header from the sidecar env. For example,
+OpenRouter can use provider id `openrouter` with
+`api_key_env: OPENROUTER_API_KEY`, keeping the key out of the agent env and
+`models.json`.
+
 ### Provider
 
 `PiAgentProvider.provision_plan` writes `models.json` into the per-launch state

tests/unit/test_agent_provider.py

@@ -322,6 +322,38 @@ class TestAgentProviderRuntime(unittest.TestCase):
         self.assertTrue(provider["compat"]["supportsDeveloperRole"])
         self.assertTrue(provider["compat"]["supportsReasoningEffort"])
 
+    def test_pi_plan_can_target_openrouter_with_egress_injected_api_key(self):
+        with tempfile.TemporaryDirectory(prefix="bb-provider.") as tmp:
+            plan = build_agent_provision_plan(
+                template="pi",
+                dockerfile="",
+                state_dir=Path(tmp),
+                instance_name="bot-bottle-test",
+                prompt_file=Path(tmp) / "prompt.txt",
+                provider_settings={
+                    "provider": "openrouter",
+                    "base_url": "https://openrouter.ai/api/v1",
+                    "api": "openai-completions",
+                    "api_key_env": "OPENROUTER_API_KEY",
+                    "models": ["google/gemma-4-26b-a4b-it:free"],
+                    "supports_reasoning_effort": True,
+                },
+            )
+            models = json.loads(Path(tmp, "pi-models.json").read_text())
+        provider = models["providers"]["openrouter"]
+        self.assertEqual("https://openrouter.ai/api/v1", provider["baseUrl"])
+        self.assertEqual("openai-completions", provider["api"])
+        self.assertEqual("egress-placeholder", provider["apiKey"])
+        self.assertEqual(
+            [{"id": "google/gemma-4-26b-a4b-it:free"}],
+            provider["models"],
+        )
+        self.assertEqual("openrouter.ai", plan.egress_routes[0].host)
+        self.assertEqual("Bearer", plan.egress_routes[0].auth_scheme)
+        self.assertEqual("OPENROUTER_API_KEY", plan.egress_routes[0].token_ref)
+        self.assertNotIn("OPENROUTER_API_KEY", plan.guest_env)
+        self.assertTrue(provider["compat"]["supportsReasoningEffort"])
+
     def test_pi_prompt_mode_uses_print_flag(self):
         self.assertEqual(
             ["-p", "Read and follow the instructions in /home/node/.bot-bottle-prompt.txt."],

tests/unit/test_manifest_egress.py

@@ -115,6 +115,7 @@ class TestAgentProviderHostCredentials(unittest.TestCase):
         b = _provider_config_bottle({
             "template": "pi",
             "settings": {
+                "provider": "ollama",
                 "base_url": "http://ollama:11434/v1",
                 "api": "openai-completions",
                 "api_key": "ollama",
@@ -125,6 +126,7 @@ class TestAgentProviderHostCredentials(unittest.TestCase):
         })
         self.assertEqual(
             {
+                "provider": "ollama",
                 "base_url": "http://ollama:11434/v1",
                 "api": "openai-completions",
                 "api_key": "ollama",
@@ -135,6 +137,29 @@ class TestAgentProviderHostCredentials(unittest.TestCase):
             b.agent_provider.settings,
         )
 
+    def test_settings_allowed_for_pi_api_key_env(self):
+        b = _provider_config_bottle({
+            "template": "pi",
+            "settings": {
+                "provider": "openrouter",
+                "base_url": "https://openrouter.ai/api/v1",
+                "api": "openai-completions",
+                "api_key_env": "OPENROUTER_API_KEY",
+                "models": ["google/gemma-4-26b-a4b-it:free"],
+            },
+        })
+        self.assertEqual("OPENROUTER_API_KEY", b.agent_provider.settings["api_key_env"])
+
+    def test_settings_rejects_api_key_and_api_key_env_together(self):
+        with self.assertRaises(ManifestError):
+            _provider_config_bottle({
+                "template": "pi",
+                "settings": {
+                    "api_key": "literal",
+                    "api_key_env": "OPENROUTER_API_KEY",
+                },
+            })
+
     def test_settings_rejected_for_claude(self):
         with self.assertRaises(ManifestError):
             _provider_config_bottle({