SKILL.md

name: jujutsu description: Jujutsu (jj) Git-compatible VCS. Use for any version-control work (status/diff/commit/branch/rebase/merge/etc.).

Jujutsu (jj)

Rule

If you think “git”, use jujutsu.

When to trigger

Use this skill whenever version control is in play, even if the user doesn’t say “git”.

Tripwires:

Commands: status, diff, log/history, add/stage, commit, branch, merge, rebase, stash, tag, checkout/switch, cherry-pick, revert, reset, amend, squash, conflict, pull/push/fetch, clone, submodule, blame, bisect.
Terms: staged/unstaged, HEAD, origin/upstream, clean/dirty, detached.

JJ-first policy

Prefer jj for VCS writes.
If jj is missing, ask to install it or request permission to fall back to git.
In colocated repos, avoid mutating with git unless you know what you’re doing (git may appear detached).

Core concepts

The working copy is a commit: @ is the working-copy commit, @- its parent.
Bookmarks are branch-like pointers: jj bookmark ….
Workspaces are git-worktree-like: jj workspace add ….
- There is no jj workspace use command. To switch, cd into the workspace directory.

Git interop / colocation

New repo backed by Git: jj git init <name>.
Clone a Git remote: jj git clone <url> [dest].
Existing Git repo: jj git init --git-repo=<path> <name>.
Colocation controls: jj git colocation status|enable|disable.

Common commands

Inspection:

jj status
jj log
jj diff
jj op log

Editing changes:

jj new <rev>
jj describe [<rev>]
jj edit <rev>
jj commit

Move/rewrite history:

jj squash
jj split
jj rebase -b <bookmark> -d <dest>

Bookmarks:

jj bookmark list
jj bookmark create <name> -r <rev>
jj bookmark move <name> --to <rev>
jj bookmark delete <name>

Undo:

jj undo
jj redo

Command mapping (git -> jj)

Git	Jujutsu	Notes
`git status`	`jj status`
`git diff`	`jj diff`
`git log`	`jj log`
`git add <path>`	`jj file track <path>`	JJ auto-tracks edits; use `track` for new paths.
`git restore <path>` / `git checkout -- <path>`	`jj restore <path>`	Restores from parent into the working copy.
`git commit -m "msg"`	`jj commit -m "msg"`
`git commit --amend -m "msg"`	`jj describe -m "msg"`	Edits current change description.
`git branch`	`jj bookmark list`
`git branch <name>`	`jj bookmark create <name> -r @`
`git branch -d <name>`	`jj bookmark delete <name>`
`git switch <name>` / `git checkout <rev>`	`jj edit <rev>`	Moves working copy to an existing change.
`git switch -c <name>`	`jj new` + `jj bookmark create <name> -r @`	Two-step in jj.
`git merge <branch>`	`jj new @ <branch>`	Creates a merge commit with both parents.
`git rebase <upstream>`	`jj rebase -b @ -o <upstream>`	Rebase current branch onto upstream.
`git pull`	`jj git fetch` + `jj rebase -b @ -o <remote-bookmark>`	Fetch then rebase onto e.g. `origin/main`.
`git fetch`	`jj git fetch`
`git push`	`jj git push`

Workspace switching (correct usage)

List workspaces: jj workspace list
Add a workspace: jj workspace add <path> [-r <rev>]
Forget a workspace: jj workspace forget <path>
Switch workspaces by changing directories: cd <path>

Safety notes

jj has no “current branch”; bookmarks don’t auto-advance.
Avoid interactive flags (like -i) in non-interactive harnesses.

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