Gbrain Smoke Test

---
name: smoke-test
description: |
  Post-restart smoke tests + auto-fix for gbrain and OpenClaw environments.
  Tests critical services, auto-fixes known issues, extensible via user-defined
  test scripts in ~/.gbrain/smoke-tests.d/*.sh.
triggers:
  - "smoke test"
  - "run smoke tests"
  - "container restart check"
  - "health check"
  - "did the restart break anything"
  - "did the container restart break anything"
tools:
  - exec
  - read
mutating: true
---

# Smoke Test Skillpack

> Run `gbrain smoke-test` or `bash scripts/smoke-test.sh` after any container restart.

## Contract

This skill guarantees:
- 8 core tests verify gbrain + OpenClaw health after restart
- Known failures are auto-fixed before reporting
- User-extensible via `~/.gbrain/smoke-tests.d/*.sh` drop-in scripts
- Results logged to `/tmp/gbrain-smoke-test.log`
- Exit code = number of unfixed failures (0 = all pass)

## Built-in Tests

| # | Test | Auto-Fix |
|---|------|----------|
| 1 | Bun runtime | Install from bun.sh |
| 2 | GBrain CLI loads | Reinstall deps |
| 3 | GBrain database (doctor) | — |
| 4 | GBrain worker process | Start worker |
| 5 | OpenClaw Codex plugin (Zod CJS) | `npm install zod@4 --force` |
| 6 | OpenClaw gateway | — (may not be started yet) |
| 7 | Embedding API key | — (check .env) |
| 8 | Brain repo exists | — |

## Usage

### CLI
```bash
gbrain smoke-test
```

### Direct
```bash
bash scripts/smoke-test.sh
```

### From OpenClaw bootstrap
Add to your `ensure-services.sh` or equivalent:
```bash
bash /path/to/gbrain/scripts/smoke-test.sh >> /tmp/bootstrap.log 2>&1
```

### From an agent
```
exec: bash /data/gbrain/scripts/smoke-test.sh
```

## Adding Custom Tests

Create executable scripts in `~/.gbrain/smoke-tests.d/`:

```bash
# ~/.gbrain/smoke-tests.d/check-redis.sh
#!/bin/bash
redis-cli ping | grep -q PONG
```

Rules:
- Exit 0 = pass, non-zero = fail
- Filename becomes the test name (e.g. `check-redis` from `check-redis.sh`)
- Keep tests fast (< 10s each)
- Tests run in alphabetical order

## Adding Built-in Tests

Edit `scripts/smoke-test.sh`. Follow this pattern:

```bash
# ── N. [Service Name] ──────────────────────────────────────
if [test condition]; then
  pass "[Service Name]"
else
  # Auto-fix attempt
  [fix command]
  if [re-test condition]; then
    fixed "[What was fixed]"
    pass "[Service Name] (after fix)"
  else
    fail "[Service Name] — [error detail]"
  fi
fi
```

### Design rules:
1. **Test first** — never fix without confirming broken
2. **Re-test after fix** — verify the fix worked
3. **Timeout everything** — `timeout N` on any command that could hang
4. **Use helpers** — `pass()`, `fail()`, `fixed()`, `skip()`
5. **Idempotent fixes** — safe to run repeatedly
6. **Skip gracefully** — `skip()` when a prerequisite is missing, don't fail

## Environment Variables

| Var | Default | Description |
|-----|---------|-------------|
| `GBRAIN_SMOKE_LOG` | `/tmp/gbrain-smoke-test.log` | Log file path |
| `GBRAIN_DIR_OVERRIDE` | (auto-detect) | Force gbrain install path |
| `GBRAIN_DATABASE_URL` | (from .env) | Database connection URL |
| `OPENCLAW_GATEWAY_PORT` | `18789` | Gateway port to test |
| `GBRAIN_BRAIN_PATH` | `/data/brain` | Brain repo path |

## Known Issues & Their Auto-Fixes

### Codex Zod core.cjs Missing (discovered 2026-04-23)
- **Symptom:** `Cannot find module './core.cjs'` → all Codex ACP sessions fail
- **Cause:** Zod v4 npm package ships without `core.cjs` in some installs
- **Auto-fix:** `npm install zod@4 --force` in the codex extension's zod dir
- **Persistence:** Does NOT survive container restart (gateway reinstalls deps)
- This is why smoke tests must run on every restart

### GBrain Worker Auth Failure
- **Symptom:** Worker can't connect to DB
- **Cause:** `GBRAIN_DATABASE_URL` not propagated to worker subprocess
- **Auto-fix:** Script explicitly passes both `DATABASE_URL` and `GBRAIN_DATABASE_URL`

## Anti-Patterns

- ❌ Running smoke tests on every chat turn. Once per container restart (or
  on user request) is plenty. The script is cheap but it's not free.
- ❌ Writing a user drop-in without `timeout N` around any command that
  could hang. A single hung drop-in stalls every subsequent run.
- ❌ Auto-fixing without confirming the check is actually broken first.
  The `pass → fail-detected → fix → re-test` loop is the contract; fixes
  that skip the re-test can report success on a still-broken state.
- ❌ Treating `skip` as `fail`. Missing prerequisites (no OpenClaw installed,
  no brain repo configured) are skips, not failures. Exit code = count of
  real failures, not skipped checks.
- ❌ Hardcoding paths in a user drop-in. Read env vars
  (`GBRAIN_DATABASE_URL`, `HOME`, etc.) so the script travels across
  container rebuilds.

## Output Format

The script writes a one-line status per check to stdout (✅/❌/🔧/⏭️) plus a
final summary line: `Results: N/M passed, F auto-fixed, S skipped`. A
structured timestamped log appends to `$GBRAIN_SMOKE_LOG`
(default `/tmp/gbrain-smoke-test.log`) for post-run forensics. Exit code
equals the count of unfixed failures (0 = all pass, positive integer =
count of remaining failures).