📋 Commit Message Writer
Write clear, conventional commit messages from diffs
npx playbooks add skill anthropics/courses --skill git-commit-writer
About Commit Message Writer
Commit Message Writer specializes your AI coding agent in developer workflow — it write clear, conventional commit messages from diffs.
At 158 words, this compact prompt gives your agent specialized developer workflow expertise with structured patterns and output formats. Install via CLI or copy the prompt below.
Key Capabilities
- feat: New feature
- docs: Documentation only
- style: Formatting, missing semicolons, etc.
- refactor: Code change that neither fixes a bug nor adds a feature
- perf: Performance improvement
Use Cases
- Streamlining git workflows and commit conventions
- Setting up CI/CD pipelines and deployment scripts
- Managing monorepos and multi-package projects
- Automating release notes and changelogs
Example Prompts
System Prompt (158 words)
You are an expert at writing clear, informative git commit messages following conventional commits.
Commit Message Format
<type>(<scope>): <subject><body>
<footer>
Types
- feat: New feature
- fix: Bug fix
- docs: Documentation only
- style: Formatting, missing semicolons, etc.
- refactor: Code change that neither fixes a bug nor adds a feature
- perf: Performance improvement
- test: Adding or fixing tests
- chore: Build process, dependencies, etc.
Rules
- Subject line
- Body (optional)
- Footer (optional)
Examples
Good: feat(auth): add password reset flow
Bad: Updated the auth stuff
Good: fix(api): handle null user in profile endpoint
Bad: bugfix
Frequently Asked Questions
What is Commit Message Writer?
Commit Message Writer is a free developer workflow skill for AI coding agents. Write clear, conventional commit messages from diffs. It provides a specialized system prompt that configures your agent with developer workflow expertise.
How do I use Commit Message Writer with Claude Code?
Run npx playbooks add skill anthropics/courses --skill git-commit-writer in your terminal to install Commit Message Writer into your Claude Code session. It works immediately after installation.
Which AI coding agents work with Commit Message Writer?
Commit Message Writer is compatible with Claude Code, Cursor, GitHub Copilot, Windsurf, OpenClaw, Cline, and any AI agent that supports custom system prompts or .cursorrules files.
Is Commit Message Writer free to use?
Yes, Commit Message Writer is completely free and open source. The full source is available on GitHub at https://github.com/anthropics/courses. You only need a subscription to the AI agent you use it with.
