# Review by Linus Torvalds (Round 2)

## Review Complete — Linus Torvalds

**VERDICT: approve**

### Key Findings

The implementation is clean and correct. 8 commits, 6 files changed, +1,252/-29 lines. All 5 functional requirements implemented. 127 new tests pass.

**What's good:**
- **Data structures are obvious.** Lists of tuples, dicts, simple string parsing. No abstract factory pattern for printing a damn bullet list.
- **`_extract_review_findings_summary` is correct.** Simple line-by-line state machine with three-tier fallback. No regex heroics. Does one thing.
- **Sanitization at the right layer.** Applied on content fragments before interpolation, not on the whole assembled message. This preserves our own mrkdwn while escaping untrusted input.
- **3:1 test-to-code ratio.** 602 lines of tests for ~200 lines of formatting code. Integration tests verify the full escape chain.

**Minor issues (non-blocking):**
1. **Double truncation.** Formatters now call `_truncate_slack_message()` internally, but all call sites in `_run_pipeline` *also* wrap them in `_truncate_slack_message()`. The outer call is a no-op. Pick one layer — the inner one is better since it makes the functions "intrinsically safe" as claimed.
2. **Docstring says "three passes" but lists four.** Comment is wrong, code is right.
3. **`_SLACK_BARE_LINK_RE`** still only matches `http/https` while the new display-link regex handles arbitrary schemes. Pre-existing gap, low risk.

FINDINGS:
- [src/colonyos/orchestrator.py]: Double truncation — formatters truncate internally AND call sites wrap again. Harmless no-op, should pick one layer.
- [src/colonyos/sanitize.py]: Docstring says "three sanitization passes" but lists four.
- [src/colonyos/sanitize.py]: `_SLACK_BARE_LINK_RE` only matches http/https while `_SLACK_LINK_INJECTION_RE` handles arbitrary schemes.

SYNTHESIS:
This is a clean, straightforward feature. The data structures are obvious, the functions are short and do one thing, sanitization is applied at the right layer, and the test coverage is thorough. The double truncation is the only structural issue and it's a no-op, not a bug. Ship it.

Review artifact saved to `cOS_reviews/reviews/linus_torvalds/20260331_194500_round1_when_you_output_followups_in_the_thread_on_slack_a938599349.md`.