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2 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Hongming Wang
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0d3058585b |
feat(runtime): adapter-declared idle_timeout_override end-to-end
Capability primitive #2 (task #117). The first cross-cutting capability where the adapter actually displaces platform behavior — claude-code's streaming session can legitimately go silent for 8+ minutes during synthesis + slow tool calls; the platform's hardcoded 5min idle timer in a2a_proxy.go cancels it mid-flight (the bug PR #2128 patched at the env-var layer). This PR fixes it at the right layer: the adapter declares "I need 600s" and the platform's dispatch path honors it. Wire shape (Python → Go): POST /registry/heartbeat { "workspace_id": "...", ... "runtime_metadata": { "capabilities": {"heartbeat": false, "scheduler": false, ...}, "idle_timeout_seconds": 600 // optional, omitted = use default } } Default behavior preserved: any adapter that doesn't override BaseAdapter.idle_timeout_override() (returns None by default) sends no idle_timeout_seconds field; the Go side falls through to idleTimeoutDuration (env A2A_IDLE_TIMEOUT_SECONDS, default 5min). Existing langgraph / crewai / deepagents workspaces are unaffected. Components: Python: - adapter_base.py: idle_timeout_override() method on BaseAdapter returning None (the platform-default sentinel). - heartbeat.py: _runtime_metadata_payload() lazy-imports the active adapter and assembles the capability + override block. Try/except swallows ANY error so heartbeat never breaks because of capability discovery — observability outranks capability accuracy. Go: - models.HeartbeatPayload.RuntimeMetadata (pointer so absent = "old runtime, didn't say"; explicit zero-cap = "new runtime, declared no native ownership"). - handlers.runtimeOverrides: in-memory sync.Map cache keyed by workspaceID. Populated by the heartbeat handler, consulted on every dispatchA2A. Reset on platform restart (worst-case 30s of platform-default behavior — acceptable; nothing about overrides is correctness-critical). - a2a_proxy.dispatchA2A: looks up the override before applyIdle Timeout; falls through to global default when absent. Tests: Python (17, all new): - RuntimeCapabilities dataclass shape (frozen, defaults, wire keys) - BaseAdapter.capabilities() default + override + sibling isolation - idle_timeout_override default, positive override, dropped-override - Heartbeat metadata producer: default adapter emits all-False, native adapter emits flag + override, missing ADAPTER_MODULE returns {} (graceful), zero/negative override is omitted from wire, exception inside adapter swallowed Go (6, all new): - SetIdleTimeout + IdleTimeout round-trip - Zero/negative duration clears the override - Empty workspace_id ignored - Replacement (heartbeat overwrites prior value) - Reset clears entire cache - Concurrent reads + writes (sync.Map invariant) Verification: - 1308 / 1308 workspace pytest pass (was 1300, +8) - All Go handlers tests pass (6 new + existing) - go vet clean See project memory `project_runtime_native_pluggable.md` for the architecture principle this implements. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> |
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Hongming Wang
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205a454c09 |
feat(runtime): RuntimeCapabilities dataclass + BaseAdapter.capabilities()
Foundation primitive for the native+pluggable runtime principle (task #117, blocks #87). Lets each adapter declare which cross-cutting capabilities it owns natively (heartbeat, scheduler, durable session, status mgmt, retry, activity decoration, channel dispatch) versus delegates to the platform's fallback implementation. Pure additive: every existing adapter inherits BaseAdapter.capabilities() which returns RuntimeCapabilities() — every flag False — so today's "platform owns everything" behavior is preserved exactly. Subsequent PRs land platform-side consumers (idle-timeout override, scheduler skip, status-transition hook, etc.) one capability at a time. Why a frozen dataclass instead of class attributes: capabilities are declared at class-load time and read by the platform on every heartbeat. A mutable value would let a runtime change capabilities mid-flight, creating impossible-to-debug state where the platform's idea of who- owns-heartbeat drifts from the adapter's actual code. Why a `to_dict()` with explicit short keys: the Go side will read these from the heartbeat payload by string key. The dict's wire names are pinned independently of Python field names so a Python-side rename doesn't silently break the Go consumer (test pins this). Tests (9 new): - is a frozen dataclass (mutation rejected) - all 7 default flags are False (load-bearing — flipping any default silently moves ownership for langgraph/crewai/deepagents) - to_dict() keys are stable wire names (Go contract) - BaseAdapter.capabilities() default returns all-False - subclass override mechanism works - sibling adapters' defaults aren't affected by an override Verification: - 1300/1300 workspace pytest pass (was 1291, +9) - Zero behavior change for any existing code path See project memory `project_runtime_native_pluggable.md`. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com> |