/changelog - Generate Changelog from Commits

Generate or update CHANGELOG.md from conventional commits.

Usage

/changelog                    # Generate from last tag to HEAD
/changelog v1.0.0..v1.1.0     # Specific range
/changelog --init             # Create new CHANGELOG.md
/changelog --unreleased       # Add unreleased section

What This Skill Does

1. Parse Commits - Extract conventional commit messages
2. Categorize Changes - Group by type (feat, fix, etc.)
3. Generate Markdown - Format as Keep a Changelog style
4. Update File - Insert new version section