Pre-Commit Checks (Fast)

Trigger

• Keywords: precommit fast, quick precommit, lint and test, precommit-fast

When NOT to Use

• Full precommit with build step (use /precommit)
• Verification loop (use /verify)
• Just running tests (run directly)

Workflow Steps

Step	Goal	Safety	Skip if Missing
lint-fix	Auto-fix code style issues	read-write	yes
test-unit	Run fast test suite	read-only	yes

Failure behavior: continue-all (run all steps, report all results)

Task

Run quick pre-commit checks: lint:fix -> test (no build step)

Step 1: Check for runner script

Use Glob to check if .claude/scripts/precommit-runner.js exists in the project root.

• Found → run: node .claude/scripts/precommit-runner.js --mode fast --tail 60
  • If runner emits ## Overall: ✅ PASS, use its output and skip to the Output section.
  • If runner emits ## Overall: ⚠️ NO CHECKS RUN, do NOT treat it as a pass — fall through to Step 2 ecosystem detection to run the project's real checks. The marker means no project validation executed and no policy step failed (validation steps all skipped or unavailable; a policy step that FAILS is ❌ FAIL, never this marker) — whether the repo declares no runnable checks or the required tools were unavailable to the runner (which orchestrates the ecosystem table below itself: manifest detection + first-class steps). The runner self-notes its own verdict (review-state.js note precommit pass|fail); on ⚠️ NO CHECKS RUN it notes nothing — the slot is untouched and the reminder persists, which is the correct reading of "nothing validated".
  • If runner fails (## Overall: ❌ FAIL), treat as a real precommit failure (do not silently fallback).
• NOT found → Auto-install attempt:
  1. Manifest gate: Use Glob to check if any known manifest exists (package.json, pyproject.toml, Cargo.toml, go.mod, build.gradle, build.gradle.kts, pom.xml, Gemfile). None → skip, fall through to Step 2. (The runner orchestrates every ecosystem in the Step 2 table, so a non-Node manifest justifies the install just as well.)
  2. Locate plugin scripts: 3-level Glob fallback (short-circuit on first match):
     • Glob: ~/.claude/plugins/**/sd0x-dev-flow/scripts/precommit-runner.js
     • Glob: ${REPO_ROOT}/node_modules/sd0x-dev-flow/scripts/precommit-runner.js
     • Plugin-relative: try reading @scripts/precommit-runner.js
  3. Plugin not found → fall through to Step 2.
  4. Plugin found → copy runner + lib/utils.js + review-state.js + lib/tree-digest.js (skip on conflict) → run. The checker pair is the runner's self-note dependency — without it the runner still runs every check and reports; only the advisory note is skipped, loudly.

Step 2: Fallback (no runner script)

Detect the project ecosystem to run steps manually.

Manifest	Ecosystem	Lint-fix	Test
package.json	Node.js	{pm} lint:fix	{pm} test:fast / test:unit / test
pyproject.toml	Python	ruff check --fix .	pytest tests/unit/
Cargo.toml	Rust	cargo clippy --fix	cargo test
go.mod	Go	golangci-lint run --fix	go test ./...
build.gradle / build.gradle.kts	Java	./gradlew spotlessApply	./gradlew test
pom.xml	Java (Maven)	mvn spotless:apply	mvn test
Gemfile	Ruby	bundle exec rubocop -a	bundle exec rspec

How the runner executes this table: same semantics as skills/precommit/SKILL.md § Ecosystem detection — a missing required tool is unavailable and blocks ✅ PASS; repo-declared capabilities (spotless / rubocop / rspec) skip only on definitive tool-native absence evidence (lockfile membership, the tool's own not-found diagnostic); an ambiguous or timed-out probe is unavailable, never a skip.

After lint:fix completes, run git diff --name-only to capture auto-fixed files.

After a conclusive fallback run, self-note the outcome — note precommit pass when every executed check passed, note precommit fail when the checks ran and at least one failed (the rounds count stays path-independent):

CHECKER=".claude/scripts/review-state.js"; [ -f "$CHECKER" ] || CHECKER="scripts/review-state.js"
node "$CHECKER" note precommit pass   # or fail

An inconclusive run (checks could not execute) notes nothing — the slot stays untouched, like the runner's ⚠️ NO CHECKS RUN. The note is advisory; a failed note never fails the run.

Output

## Precommit (fast)

## Results

| Step | Status | Notes |
|------|--------|-------|
| lint:fix | ✅/❌/⏭️/⛔ | ⏭️ = repo opted out (skip); ⛔ = required tool unavailable (blocks PASS) |
| test | ✅/❌/⏭️/⛔ | same legend |

## Changed Files (after lint:fix)

- <files or "(none)">

## Overall: ✅ PASS / ❌ FAIL / ⚠️ NO CHECKS RUN (no project validation executed AND no policy step failed; fall through to Step 2, needs human if nothing runnable exists)

## Checklist

- [ ] All available checks pass
- [ ] git status reviewed