# Review by Andrej Karpathy (Round 3)

Here's my review as Andrej Karpathy:

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## Review Complete — Andrej Karpathy, Round 4

All 10 functional requirements verified. **194 frontend tests + 322 Python tests passing, zero failures.**

### Key Observations

**What's done well:**
- **Polling over WebSocket is the right call** — 5s intervals for 1-3 viewers, no premature complexity
- **`_preexec_worktree_state` tri-state refactor** is a genuine safety win — the old code returned `False` on `git status` failure (assumed clean), new code fails closed with `"indeterminate"`
- **Utility functions as data** — `Record<string, string>` lookups replacing switch statements is the right pattern
- **Write-disabled-by-default** (`dashboard_write_enabled: False`) is the correct security posture
- **Notification lock cleanup** prevents unbounded dict growth

**Non-blocking observations:**
- `os.environ.setdefault` for write-enabled is process-global implicit state — should be a parameter to `create_app()`
- Deploy docs should mention ephemeral token lifecycle (changes on restart)
- Chart components lack React error boundaries
- Daemon reliability improvements bundled with dashboard work — ideally separate commits

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VERDICT: **approve**

FINDINGS:
- `[src/colonyos/daemon.py]`: `os.environ.setdefault` is process-global implicit state — pass write_enabled as parameter instead
- `[src/colonyos/daemon.py]`: tri-state worktree check is a genuine safety improvement
- `[src/colonyos/server.py]`: Rate limiter is global not per-client — acceptable for single-operator
- `[deploy/README.md]`: Should mention ephemeral bearer token lifecycle
- `[web/src/pages/Analytics.tsx]`: Missing React error boundaries on chart components
- `[web/src/util.ts]`: Record lookup maps are the right pattern — data, not control flow

SYNTHESIS:
Solid, well-executed implementation. All requirements implemented and tested. Architecture decisions are sound — polling not WebSocket, daemon thread with exception isolation, write-disabled-by-default. The code treats structured types and data-driven mappings with the same rigor as program logic. The few issues flagged are style observations, not correctness bugs. Ship it.