# 🔍 Cross-Code Review — OpenCode Adapter Implementation, Fix Round 4 (Job b3aa4b6f)

- **Reviewer**: `planner-reviewer-claude-01`
- **Target diff**: cumulative working-tree diff, confirmed via `git status --short`/`git diff --stat` to match the brief exactly. This round is a near-byte-identical superset of the already-approved `3473d7e3` round.
- **Method**: rather than re-reading the entire diff line-by-line (already thoroughly verified across three prior rounds — `a65aaf9f` NOT PASS, `b6fd3987` PASS, `3473d7e3` PASS), I isolated the actual delta first: `.agents/skills/lib_py/agents/adapters/opencode.py`'s diff header shows blob hash `9e5d01b` — identical to the hash I already verified in `3473d7e3` — confirming the adapter itself is byte-for-byte unchanged. `git diff --stat` line counts match the prior round exactly file-for-file except `tests/test_tier1_unit.py` (+18 lines). I focused verification on that one real delta.

---

## 1. The Actual Delta — `OPENCODE_PERMISSION` Export Syntax Change (Positive)

`create_session.sh`/`resume_session.sh` changed from the parameter-expansion form I validated last round:
```bash
export OPENCODE_PERMISSION="${OPENCODE_PERMISSION:-{\"*\":\"allow\"}}"
```
to an explicit conditional with a plain single-quoted literal:
```bash
if [ -z "${OPENCODE_PERMISSION:-}" ]; then
  export OPENCODE_PERMISSION='{"*":"allow"}'
fi
```

I did not assume equivalence — reproduced this directly:
```
$ bash -c 'unset OPENCODE_PERMISSION; if [ -z "${OPENCODE_PERMISSION:-}" ]; then export OPENCODE_PERMISSION='"'"'{"*":"allow"}'"'"'; fi; printf "VALUE=[%s]\n" "$OPENCODE_PERMISSION"'
VALUE=[{"*":"allow"}]
$ python3 -c 'import json,os; print(json.loads(os.environ["OPENCODE_PERMISSION"]))'
{'*': 'allow'}
```
Clean, valid JSON — no regression from the fix already validated in `3473d7e3`. This new form is arguably more robust than the previous one: it sidesteps nested-quote-escaping entirely (the exact class of bug that slipped through the `b6fd3987` round) by using a plain single-quoted literal in a context where single quotes are actually meaningful shell quoting, rather than embedding an escaped JSON literal inside a `${VAR:-word}` expansion already nested in an outer double-quoted context.

## 2. Expanded Test Coverage — Previously-Untested "Preset" Path Now Covered

The new test additions in `tests/test_tier1_unit.py::test_opencode_shell_and_scripts_integration` add a scenario I hadn't seen tested before: verifying that if a caller has *already* set `OPENCODE_PERMISSION` (e.g., to `{"*":"deny"}`), the script's `if [ -z ... ]` guard correctly leaves it untouched rather than clobbering it with the default:

```python
res_c_preset = subprocess.run([...], env={**os.environ, "OPENCODE_PERMISSION": '{"*":"deny"}'}, ...)
assert json.loads(res_c_preset.stdout.strip()) == {"*": "deny"}
```

Both `create_session.sh` and `resume_session.sh` get this preset-path assertion alongside the unset-path assertion. This closes a real test-coverage gap (not a bug — bash's `:-` semantics already respected a preset value correctly in the prior syntax too — but it was never explicitly asserted before now).

## 3. Everything Else — Confirmed Unchanged From the Already-Verified `3473d7e3` Round

- `opencode.py` adapter: byte-identical (blob hash match) — the real-schema (`directory`/`time_created` ms) fix, `_resolve_db()`'s live `opencode db path` invocation, and all other adapter behavior already independently verified (including against a scratch copy of the real production database schema in `b6fd3987`) carry forward unchanged.
- `reconcile.sh`'s drift-C block, including its DRY reuse of the adapter's `_resolve_db()` via `get_adapter('opencode')`, is unchanged.
- All 29 lockstep wiring points (`run_loop.sh`, `status.sh`, `lib.sh`, `registry.py`, `atomic_yaml.py`, `verify_session.py`, `workspace_uuid.py`, 6 skill scripts, `update_yaml_resumed.sh`, `orc_onboard.sh`) are unchanged and were already verified across the prior two rounds.
- Diff-stat line counts confirm this: every file matches the prior round's insertion/deletion counts exactly except `test_tier1_unit.py`.

## 4. Test Suite

Independently ran the full suite myself:
```
.venv/bin/python -m pytest tests/ -q
→ 447 passed in 761.60s (0:12:41), exit code 0
```
Same count as the prior round (the new preset-path checks are additional assertions inside an existing test function, not new test functions, so the total count is unchanged as expected). Zero failures, zero regressions.

---

## 5. Verdict

This round's only real change is a stylistic-but-meaningfully-more-robust rewrite of the `OPENCODE_PERMISSION` default-export logic (avoiding nested-quote fragility entirely) plus genuinely useful new test coverage for the preset/override-respecting path. Independently verified both are correct via direct bash reproduction. Everything else in the diff is confirmed byte-identical to the `3473d7e3` round I already thoroughly reviewed and passed (including the schema-correctness fix validated against a real production database in `b6fd3987`). Full suite green, 447/447, zero regressions.

[VERDICT: PASS]