Agent skill

commit-message

Format git commit messages combining Conventional Commits summary lines with Linux kernel-style bodies. Use when writing, reviewing, or formatting commit messages.

Stars 232
Forks 15

Install this agent skill to your Project

npx add-skill https://github.com/aiskillstore/marketplace/tree/main/skills/chemiseblanc/commit-message

SKILL.md

Commit Message Formatting

Summary Line

Use Conventional Commits format:

<type>(<scope>): <description>
  • type (required): feat, fix, docs, style, refactor, perf, test, build, ci, chore
  • scope (optional): component or area affected, in parentheses
  • description: imperative mood, lowercase start, no period, max 50 chars (hard limit 72)
  • For breaking changes: add ! before colon: feat(api)!: remove deprecated endpoint

Body

Separate from summary with blank line. Follow kernel style:

  • Wrap at 72 columns
  • Imperative mood ("Add feature" not "Added feature")
  • Explain why, not what (the diff shows what)
  • Describe user-visible impact and motivation
  • Quantify improvements with numbers when applicable

When referencing commits, use 12+ char SHA with summary:

Commit e21d2170f36602ae2708 ("video: remove unnecessary
platform_set_drvdata()") introduced a regression...

No Trailers

Omit all trailers: no Signed-off-by, Reviewed-by, Acked-by, Tested-by, Cc, Fixes, Link, etc.

Examples

Single-line fix:

fix(parser): handle empty input without panic

Feature with body:

feat(auth): add OAuth2 PKCE flow support

Mobile and SPA clients cannot securely store client secrets. PKCE
allows these clients to authenticate safely without exposing
credentials in client-side code.

This reduces authentication failures for mobile users by eliminating
the insecure implicit flow workaround.

Breaking change:

feat(api)!: require authentication for all endpoints

Anonymous access created security vulnerabilities and complicated
rate limiting. Requiring auth simplifies the security model and
enables per-user quotas.

Clients must now include a valid Bearer token with every request.

Refactor:

refactor(db): extract connection pooling into dedicated module

The monolithic database module grew to 2000+ lines, making
maintenance difficult. Separating connection pooling improves
testability and allows independent configuration tuning.

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