Commit History
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[NOTICKET] fix: F-5 — isolate DB threads; stop treating session hardening as best-effort
Rifqi Hafizuddin +1: Claude Opus 4.8`asyncio.wait_for` cancels the awaiting COROUTINE. The `to_thread` worker underneath is not cancellable — it runs to completion, holding a thread and a connection on the CUSTOMER's database long after we returned "timed out" to the user. Degrading their production database is our liability, and it is invisible from our side because we already answered. (a) Dedicated bounded pool. DB work moves off `asyncio.to_thread` (which always uses the shared default executor) onto its own ThreadPoolExecutor(50, "dbexec") via `run_in_executor`. Abandoned workers previously accumulated in a pool of min(32, cpu_count+4) shared with every other to_thread caller in the process — notably the tabular Parquet loader — so a handful of slow customer queries could stall unrelated work service-wide. Sized to the engine cache's own ceiling (_MAX_ENGINES=50 x _POOL_SIZE=1): more threads than that cannot make progress anyway. Timeout semantics are unchanged. (b) Session hardening is no longer best-effort — and…f3025d4
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feat/Planner Agent (#2)
- [KM-567][AI] Planner agent: contracts, schemas, inputs, registry (be96601ad46c00e8e789768dd6e89c2db827bde4) - [KM-567][AI] Planner agent: prompt + few-shot examples (83ba6b1743370145454d9315224eeb7b2d12ac18) - [KM-567][AI] Planner agent: validator + service (72306d0ce92c76d60117a20c701c7f8185bcfeef) - [KM-567] docs: record Phase 3 Planner agent in PROGRESS.md (ba2fa8892392028c8d13646c09d1155bbf34e703) - [KM-567][AI] Planner agent: fix PII leak + placeholder/retry robustness (6b3637dda097f16cd98d4b9ad6094fdaed6d1346) - [KM-624] Implement Compute Functions Tools (78c598c22d2f2a14229a83c3f43fa98c5d520ae7) - [KM-624][AI] Planner: realign stub registry + examples to composite analyze_* tools (93a24dabf48d8121e981cc470c835cb10badb62a) - [KM-624] docs: record tool taxonomy + ownership revision in PROGRESS (f3461142542f6216aff23b30a1321dfb4654afdc) - [KM-626][AI] Slow-path agent: seam contracts + TaskRunner (ac310de551d0888ccfef31e981e22d88f54c6a38) - [KM-626][AI] Slow-path agent: Assembler…81e5fe7
