Git Commit Message Formatting

When to Use This Skill

Use this skill when creating git commits with the Bash tool, especially for commits with:

• Multi-line messages
• Body text or explanations
• Co-authored-by footers
• Claude Code attribution

Core Principle

Avoid HEREDOC syntax – Use -m with multiline strings instead.

Pattern to Follow

✅ DO – Use multiline string with -m

git commit -m "feat(github): add github plugin

This adds comprehensive GitHub workflow support including
commands for PR management and review workflows.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>"

Key points:

• Single -m flag with entire message in quotes
• Newlines preserved within the quoted string
• No special syntax or escaping needed
• Works reliably across all environments

❌ DON’T – Use HEREDOC syntax

# This FAILS in Claude Code's Bash tool
git commit -m "$(cat <<'EOF'
feat(github): add github plugin

This adds comprehensive GitHub workflow support.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
EOF
)"

Why this fails:

• HEREDOC syntax has shell interpretation issues
• Fails in certain execution contexts
• More complex than necessary
• Unreliable across environments

Examples

Simple commit

git commit -m "fix: resolve path configuration issue"

Commit with body

git commit -m "feat: add progressive disclosure pattern

Skills now support references/ subdirectory for
detailed documentation that loads on-demand."

Full conventional commit

git commit -m "feat(tools): add git commit message skill

This skill teaches Claude to format git commit messages
using multiline strings instead of HEREDOC syntax, which
fails in certain shell environments.

The pattern uses a single -m flag with the entire message
in quotes, preserving newlines naturally."

Why It Matters

Using -m with multiline strings is:

• Reliable: Works consistently in all environments
• Simple: No complex shell syntax needed
• Portable: Standard git behavior
• Direct: Git handles newlines correctly

HEREDOC syntax causes issues because:

• Shell interpretation varies by environment
• Execution context in Claude Code differs from terminal
• Quote handling becomes complex
• Unnecessary complexity for the task

Quick Reference

• One -m flag
• Entire message in double quotes
• Newlines work naturally
• No HEREDOC needed