# Review by Linus Torvalds (Round 2)

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## Review Complete — Linus Torvalds (Round 1)

**377 tests pass, 0 failures.** All 7 functional requirements implemented across ~162 lines of production code in 4 files, with 664 lines of tests across 7 clean commits.

VERDICT: **approve**

FINDINGS:
- [src/colonyos/daemon.py]: `stall_seconds is None` check in `_watchdog_check` is dead code — the field is typed `int` with enforced minimum, can never be None
- [src/colonyos/daemon.py]: `_post_slack_message()` in `_watchdog_recover` has no explicit socket timeout; if Slack API hangs, watchdog thread blocks until SDK internal timeout fires. Non-blocking for v1.
- [src/colonyos/daemon.py]: `_pipeline_stalled` stays True after recovery until next pipeline start — correct but worth documenting
- [src/colonyos/daemon.py]: Benign race between watchdog force-reset and main thread finally block — both converge on FAILED state

SYNTHESIS:
This is clean, minimal, correct code. The architecture is right: an independent watchdog thread that cannot deadlock against the stuck pipeline it's monitoring, reading only GIL-safe primitives and filesystem stats. The dual-condition detection gate (elapsed time AND heartbeat staleness) is conservative — false positives are the enemy here, and this design eliminates them. 162 lines of production code, 664 lines of tests, ~4:1 test-to-production ratio. The recovery sequence is a straight-line escalation (graceful → grace period → force → reset) with every step wrapped in try/except so a failure at any point doesn't abort the recovery. The code does the simple, obvious thing at every turn. Ship it.