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# Code Review: add-status-brakes
Reviewed against SPEC.md R1–R10. All requirements implemented; no functional gaps found.
## R1–R10 checklist
| Req | Status | Notes |
|-----|--------|-------|
| R1 `.state.loop` schema | ✅ | All 13 defaults present; atomic write via tmp+rename |
| R2 `--create-loop` | ✅ | kebab/Dup/template validation; name patching |
| R3 `--version`, `--approve --loop` | ✅ | version parses `## Framework Version`; approve only clears halt; `resumed_count++` |
| R4 `--can-continue` | ✅ | Correct boolean: `status == "running"` only |
| R5 `--check-gate` (6 gates) | ✅ | Order matches SPEC; first failure halts; JSON structured |
| R6 `--install-schedule` | ✅ | Triple dispatch Darwin/Linux/Windows; stubs generated; pause disables (best-effort) |
| R7 `--can-edit --loop [--loop-worktree]` | ✅ | Root residency + file_scope; refuses outside root |
| R8 `--transition` halt refusal | ✅ | Owned-task scan; points user at `--approve --loop` |
| R9 `--audit`/`--loop-list` | ✅ | Cat-6 runs even with no tasks; untracked/halted flagged; missing current_task flagged |
| R10 `.state.log` | ✅ | ISO timestamps; tested for PAUSED/RESUMED/APPROVED/HALT |
## Defensive coding observations
1. **Atomic `.state.loop` writes** — tmp+`replace()`. Crashes mid-write cannot corrupt state.
2. **Best-effort schedule disable** — wrapped in `try/except` so a non-existent cron/plist on a dev box cannot crash `--pause-loop` or the halt path. `.state.loop` remains source of truth; the OS unit reads it on next wake and self-skips.
3. **No new pip deps** — stdlib only (`platform`, `subprocess`, `json`, `re`, `datetime`). Per project constraints.
4. **Harness-agnostic** — every gate is reachable via `status.py` subprocess + `--json`. No harness-specific code. Works with opencode, any other harness, or a raw shell.
5. **`--approve --loop` is the only halt-clear** — D4 enforced; `--resume-loop` explicitly refuses halted loops and tells the user to approve.
6. **R8 ownership scan** — `_loop_owning_task` is O(loops) per transition; loops are few, so fine. Could be cached later if needed.
## Edge cases checked
- Empty project (no tasks) — `--audit` still runs Cat-6 (R9 fix; was originally early-return).
- Loop with no `loop.json` — `--install-schedule` exits 2 with clear message.
- Loop with no `.state.loop` — every `--loop` command refuses with the `_loop_untracked_hint`.
- `--check-gate` on a paused loop — `_gate_loop_status` returns the `paused:` reason (not a halt, since the user paused it; harness checks separately via `--can-continue`).
- Budget informational when `max_budget_usd == null` — gate skipped, returns None.
- Score plateau with too-short history — gate skipped.
- Worktree missing — `_gate_worktree_drift` treats as no-drift (runner will recreate).
- `git diff` failure — warning logged to stderr, drift gate skips. Not a halt; per "best-effort portable" principle (D13).
## Things deliberately NOT in this task (per scope)
- `loop-runner.py` itself — task 3.
- Verifier role / graded JSON — task 4.
- Worktree creation plumbing — task 5.
- Full `templates/loops/ci-triage/` content (prompts, README) — task 6.
- `--upgrade-loops` for stray pre-state-loop dirs —audit just flags them. Refactor in v1.1.
## Verdict
APPROVE. No blocking issues. Ready for bug_find.