# Review by Linus Torvalds (Round 2)

## Review Complete

Here's the summary:

**VERDICT: approve**

The implementation is clean and minimal — exactly what the PRD asked for. Key findings:

### What's done right:
- **Data structures are correct**: Frozen dataclasses for queue messages — immutable, typed, thread-safe by construction
- **Threading model is simple and correct**: One janus queue bridging sync orchestrator to async Textual event loop, no shared mutable state
- **Widget count is minimal**: 4 widgets total, `TranscriptView` extends `RichLog` directly (no unnecessary wrapper)
- **All 8 PhaseUI callbacks implemented** with proper sanitization via `sanitize_display_text()`
- **Zero regressions**: 1687 existing tests pass, 86 new TUI tests pass

### Minor issues (not blocking):
1. `_launch_tui` monkey-patches `_run_callback` after app construction — mildly ugly but works
2. Duplicate CSS between `composer.py` DEFAULT_CSS and `styles.py` APP_CSS
3. `_looks_like_markdown` heuristic will false-positive on backtick-quoted names
4. `StatusBar._last_rendered` is a test-only attribute leaking into production code
5. Lambda closure in `on_composer_submitted` captures `self._run_callback` late (fragile pattern)

All minor items are v2 cleanup, not blockers. The review file is at `cOS_reviews/reviews/linus_torvalds/20260323_200000_round2_give_me_fucking_awesome_ux_that_is_a_fucking_amazing_experience_and_it_gets_peop.md`.