jj-guide

Installation
SKILL.md

Jujutsu (jj) for AI Agents

jj is a Git-compatible version control system. Key advantages:

  • Safe experimentation: jj undo reverses any operation
  • Auto-snapshots: Working copy changes are automatically tracked
  • No staging area: Simpler than git add + git commit

Critical Rules

Always Use -m Flag (except jj new)

Commands that set messages open an editor without -m and fail:

jj desc -m "message"        # ✅
jj squash -m "message"      # ✅
jj desc                     # ❌ Opens editor, fails
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First Seen
Mar 28, 2026