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Use when creating git commits to ensure commit messages follow project standards. Applies the 7 rules for great commit messages with focus on conciseness and imperative mood.

Install Skill

1Download skill
2Enable skills in Claude

Open claude.ai/settings/capabilities and find the "Skills" section

3Upload to Claude

Click "Upload skill" and select the downloaded ZIP file

Note: Please verify skill by going through its instructions before using it.

SKILL.md

name git-commit
description Use when creating git commits to ensure commit messages follow project standards. Applies the 7 rules for great commit messages with focus on conciseness and imperative mood.

Git Commit Guidelines

Follow these rules when creating commits for this repository.

The 7 Rules

  1. Separate subject from body with a blank line
  2. Limit the subject line to 50 characters
  3. Capitalize the subject line
  4. Do not end the subject line with a period
  5. Use the imperative mood ("Add feature" not "Added feature")
  6. Wrap the body at 72 characters
  7. Use the body to explain what and why vs. how

Key Principles

Be concise, not verbose. Every word should add value. Avoid unnecessary details about implementation mechanics - focus on what changed and why it matters.

Subject line should stand alone - don't require reading the body to understand the change. Body is optional and only needed for non-obvious context.

Focus on the change, not how it was discovered - never reference "review feedback", "PR comments", or "code review" in commit messages. Describe what the change does and why, not that someone asked for it.

Avoid bullet points - write prose, not lists. If you need bullets to explain a change, you're either committing too much at once or over-explaining implementation details.

Format

Always use a HEREDOC to ensure proper formatting:

git commit -m "$(cat <<'EOF'
Subject line here

Optional body paragraph explaining what and why.
EOF
)"

Good Examples

Add session validation for GitHub repository URLs
Fix race condition in session creation

Multiple concurrent requests for the same repo could create duplicate
sessions. Added KV-based locking with 30-second TTL.
Add observability with logs and traces

Bad Examples

Update files

Changes some things related to sessions and also fixes a bug.

Problem: Vague subject, doesn't explain what changed

Add session handling

Implements session creation with locking mechanism using KV storage
and adds validation for GitHub owner/repo names using regex patterns.
Includes comprehensive error handling with custom error types and
supports both new session creation and existing session lookup.

Problem: Over-explains implementation details, uses too many words

Checklist Before Committing

  • Subject is ≤50 characters
  • Subject uses imperative mood
  • Subject is capitalized, no period at end
  • Body (if present) explains why, not how
  • No references to review feedback or PR comments
  • No bullet points in body
  • Not committing sensitive files (.env, credentials)