jujutsu-vcs from smithery.ai

<essential_principles>

Jujutsu (jj) is a Git-compatible VCS that eliminates common Git pain points. It's designed for safety, simplicity, and powerful history manipulation.

1. Working Copy Is Always a Commit

Unlike Git, your working copy state is always a commit in jj. Every file change is automatically tracked in the current commit—no staging area, no git add. When you run most jj commands, changes are auto-committed.

# In Git: edit → add → commit
# In jj:  edit → done (auto-committed)

2. Change IDs vs Commit IDs

Every commit has two identifiers:

Change ID: Stable across rewrites (use this daily)
Commit ID: Changes when commit is rewritten (like Git's SHA)