# Review by Linus Torvalds (Round 3)

## Review Complete — Linus Torvalds (Round 3)

The implementation is clean, complete, and correct. All 9 functional requirements are satisfied. No code changes needed.

**Key findings:**

1. **`_verify_detected_failures()` is solid** — structured `VERIFY_RESULT: PASS/FAIL` sentinel as primary signal, non-zero-count regex as safe fallback. 16 unit tests cover the decision boundary including the round-1 false-positive edge cases.

2. **Verify-fix loop is structurally identical to the review-fix loop** — budget guard → verify → check → budget guard → fix → loop. No new abstractions invented. Anyone who reads the review-fix loop immediately understands the verify-fix loop.

3. **Resume chain is complete** — `decision → verify → deliver`, `learn → verify` for resume from failed verify. `_SKIP_MAP` entries correct.

4. **Config integration is clean** — `VerifyConfig`, `PhasesConfig.verify`, validation, roundtrip serialization all work. `Phase.VERIFY` correctly excluded from `_SAFETY_CRITICAL_PHASES` (read-only agent, designed for haiku).

5. **621 lines of test coverage** in `test_verify_phase.py` plus updates to all existing pipeline tests — no regressions.

**Minor (non-blocking):** `Phase.FIX` reuse, no haiku default, fail-open on ambiguous output — all acceptable for v1.

VERDICT: **approve**

FINDINGS:
- [src/colonyos/orchestrator.py]: `_verify_detected_failures()` correctly implements structured sentinel + regex fallback with 16 unit tests
- [src/colonyos/orchestrator.py]: Verify-fix loop follows existing review-fix pattern — no premature abstraction
- [src/colonyos/orchestrator.py]: `_compute_next_phase()` and `_SKIP_MAP` correctly route resume through verify
- [src/colonyos/config.py]: `VerifyConfig` and `PhasesConfig.verify` cleanly integrated with validation
- [src/colonyos/instructions/verify.md]: Clean read-only contract with structured sentinel output
- [tests/test_verify_phase.py]: 621 lines of comprehensive test coverage

SYNTHESIS:
The implementation is correct, complete, and follows existing patterns without inventing new abstractions. The code is simple and obvious — there's no cleverness hiding bugs. The data structures tell the story: verify phase results go into the same `log.phases` list, budget accounting works the same way, resume routing extends the existing mapping. The instruction templates are short, explicit contracts with a parseable output format. Ship it.
