# Review by Linus Torvalds (Round 2)

---

## Review Complete — Linus Torvalds

**VERDICT: approve**

### Key Findings

1. **All 1,922 tests pass** — zero regressions across the entire suite.
2. **No TODOs, no secrets, no commented-out code** in the implementation.
3. **Three feature sets implemented**: TUI (Textual), TUI-as-default + UX fixes + smart routing, and `colonyos sweep`.

### What's Good
- **Data structures are clean**: frozen dataclasses for queue messages, thread-safe adapter with Lock on injection deque, proper sanitization on all output paths.
- **Sweep follows existing patterns**: `run_sweep()` mirrors `run_ceo()` exactly — read-only analysis agent, optional delegation to `run()`. Simple and obvious.
- **Preflight recovery is properly paranoid**: refuses secret files, validates commit scope, blocks if the agent expanded beyond dirty files.
- **Sanitizer improvements are real security fixes**: expanded ANSI regex covers OSC/DCS, carriage return normalization closes content-overwrite attacks.
- **TUI lifecycle is solid**: double-Ctrl+C force-quit, `exclusive=False` for mid-run input, try/finally on worker lifecycle.

### What Could Be Better (Not Blocking)
- **`cli.py` is getting heavy**: the `_launch_tui` function is 100+ lines of nested closures with `nonlocal` state. It works because runs are serial, but it's fragile.
- **Two routing systems coexist**: `RouterCategory` (legacy CLI) alongside `ModeAgentMode` (TUI). Necessary for backward compatibility, but adds cognitive weight.
- **Router model changed to opus** against persona consensus — but correctly follows the user's explicit top-level direction.

The review artifact has been written to `cOS_reviews/reviews/linus_torvalds/20260325_review_implement_latest_prd.md`.

VERDICT: approve

FINDINGS:
- [src/colonyos/cli.py]: `_launch_tui` is 100+ lines of nested closures with `nonlocal` state — works but fragile
- [src/colonyos/router.py]: Two routing systems (RouterCategory + ModeAgentMode) coexist — necessary but adds weight
- [src/colonyos/config.py]: Router model changed from haiku to opus, contradicts persona consensus but follows user direction
- [src/colonyos/sanitize.py]: Expanded ANSI/CR sanitization is a genuine security improvement
- [src/colonyos/orchestrator.py]: Preflight recovery with secret-file refusal and scope validation is well-guarded

SYNTHESIS:
This is a large branch — 9,000+ lines across 72 files — but the architecture is sound. The data structures are clean, the adapter pattern is correct, and the sweep command follows established patterns. The biggest weakness is `cli.py` accumulating too many responsibilities, but premature refactoring would be worse. All 1,922 tests pass. No secrets, no TODOs, no regressions. Ship it.
