caveman-commit

作成者： juliusbrussee

超圧縮コミットメッセージ生成ツール。コミットメッセージからノイズを削減しつつ、意図と理由を保持。Conventional Commits形式。件名50文字以内、本文は「なぜ」が明白でない場合のみ。ユーザーが「write a commit」「commit message」「generate commit」「/commit」と発言した場合、または/caveman-commitを呼び出した場合に使用。ステージング変更時に自動トリガー。

npx skills add https://github.com/juliusbrussee/caveman --skill caveman-commit

ZIPダウンロード GitHub

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 — unless the user's own rule requires an Assisted-by/AI-attribution trailer, then add it as a trailer
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.