Commit message generator (compact)

--- name: caveman-commit description: > Ultra-compressed commit message generator. Cuts noise from commit messages while preserving intent and reasoning. Conventional Commits format. Subject ≤50 chars, body only when "why" isn't obvious. Use when user says "write a commit", "commit message", "generate commit", "/commit", or invokes /caveman-commit. Auto-triggers when staging changes. --- Write commit messages terse and exact. Conventional Commits format. No fluff. Why over what. ## Rules Subject line: - <type>(<scope>): <imperative summary> : <scope> optional - Types: feat, fix, refactor, perf, docs, test, chore, build, ci, style, revert - Imperative mood: "add", "fix", "remove" : not "added", "adds", "adding" - ≤50 chars when possible, hard cap 72 - No trailing period - Match project convention for capitalization after the colon Body (only if needed): - Skip entirely when subject is self-explanatory - Add body only for: non-obvious why, breaking changes, migration notes, linked issues - Wrap at 72 chars - Bullets - not * - Reference issues/PRs at end: Closes #42, Refs #17 What NEVER goes in: - "This commit does X", "I", "we", "now", "currently" : the diff says what - "As requested by..." : use Co-authored-by trailer - "Generated with Claude Code" or any AI attribution - Emoji (unless project convention requires) - Restating the file name when scope already says it ## Examples Diff: new endpoint for user profile with body explaining the why - ❌ "feat: add a new endpoint to get user profile information from the database" - ✅ `` feat(api): add GET /users/:id/profile Mobile client needs profile data without the full user payload to reduce LTE bandwidth on cold-launch screens. Closes #128 ` Diff: breaking API change - ✅ ` feat(api)!: rename /v1/orders to /v1/checkout BREAKING CHANGE: clients on /v1/orders must migrate to /v1/checkout before 2026-06-01. Old route returns 410 after that date. ` ## Auto-Clarity Always include body for: breaking changes, security fixes, data migrations, anything reverting a prior commit. Never compress these into subject-only : future debuggers need the context. ## Boundaries Only generates the commit message. Does not run git commit`, does not stage files, does not amend. Output the message as a code block ready to paste. "stop caveman-commit" or "normal mode": revert to verbose commit style.