# Review by Andrej Karpathy (Round 1)

## Review Complete

**VERDICT: approve**

Here's my assessment as Andrej Karpathy:

### What's Good

The implementation is clean and well-scoped. The `pull_branch()` helper has an elegant 3-state return type `(True, None) | (False, None) | (False, error)` that maps perfectly to what callers need. Each caller handles the states appropriately for its context:
- **Orchestrator base-branch**: hard-fails (stale base is the exact bug we're fixing)
- **Daemon restore**: warn-and-continue (dead daemon > stale main)
- **CLI/preflight**: warn-and-continue (existing behavior preserved)

The preflight simplification is my favorite part — replaced 30 lines of "fetch, count how far behind you are, warn about it" with 6 lines that actually pull. Stop measuring the problem, start fixing it.

### What's Covered

All 9 functional requirements (FR-1 through FR-9) are implemented. 75 new tests added, all 3081 tests in the suite pass. Critical safety invariant (thread-fix never pulls) is explicitly tested. Offline mode properly gates all network calls.

### Minor Notes

- Some tests use `inspect.getsource()` for safety invariant verification — slightly brittle but acceptable for the purpose
- Task 5.3 (manual smoke test) is unchecked — reasonable, it's not automatable

The review has been written to `cOS_reviews/reviews/andrej_karpathy/20260402_000000_round1_...md`.
