jj-hunk: Programmatic Hunk Selection

Use jj-hunk for non-interactive hunk selection in jj. Essential for AI agents that need to create clean, logical commits from mixed changes.

When to Use This Skill

• Splitting a commit into multiple logical commits
• Committing only specific hunks (partial commit)
• Squashing only certain changes into parent
• Any hunk selection that would normally require jj split -i or jj squash -i

Setup

cargo install jj-hunk