GitButler CLI Skill

Use GitButler CLI (but) as the default version-control interface.

Non-Negotiable Rules

1. Use but for all write operations. Never run git add, git commit, git push, git checkout, git merge, git rebase, git stash, or git cherry-pick. If the user says a git write command, translate it to but and run that.
2. Always add --status-after to mutation commands.
3. Use CLI IDs from but status -fv / but diff / but show; never hardcode IDs.
4. Start with but status -fv before mutations so IDs and stack state are current.
5. Create a branch for new work with but branch new <name> when needed.

Core Flow

Every write task should follow this sequence.

# 1. Inspect state and gather IDs
but status -fv

# 2. If new branch needed:
but branch new <name>

# 3. Edit files (Edit/Write tools)

# 4. Refresh IDs if needed
but status -fv

# 5. Perform mutation with IDs from status/diff/show
but <mutation> ... --status-after

Command Patterns

• Commit: but commit <branch> -m "<msg>" --changes <id>,<id> --status-after
• Commit + create branch: but commit <branch> -c -m "<msg>" --changes <id> --status-after
• Amend: but amend <file-id> <commit-id> --status-after
• Reorder commits: but move <source-commit-id> <target-commit-id> --status-after (commit IDs, not branch names)
• Stack branches: but move <branch-name-or-id> <target-branch-name-or-id> --status-after (branch names or branch CLI IDs)
• Tear off a branch: but move <branch-name-or-id> zz --status-after (zz = unassigned; branch name or branch CLI ID)
• Equivalent branch subcommand syntax remains available: but branch move <branch-name> <target-branch-name> and but branch move --unstack <branch-name>
• Push: but push or but push <branch-id>
• Pull: but pull --check then but pull --status-after

Task Recipes

Commit files

1. but status -fv
2. Find the CLI ID for each file you want to commit.
3. but commit <branch> -m "<msg>" --changes <id1>,<id2> --status-after Use -c to create the branch if it doesn't exist. Omit IDs you don't want committed.
4. Check the --status-after output for remaining uncommitted changes. If the file still appears as unassigned or assigned to another branch after commit, it may be dependency-locked. See "Stacked dependency / commit-lock recovery" below.

Amend into existing commit

1. but status -fv (or but show <branch-id>)
2. Locate file ID and target commit ID.
3. but amend <file-id> <commit-id> --status-after

Reorder commits

but move supports both commit reordering and branch stack operations. Use commit IDs when reordering commits.

1. but status -fv
2. but move <commit-a> <commit-b> --status-after — uses commit IDs like c3, c5
3. Refresh IDs from the returned status, then run the inverse: but move <commit-b> <commit-a> --status-after

Stack existing branches

To make one existing branch depend on (stack on top of) another, use top-level move:

but move feature/frontend feature/backend

This moves the frontend branch on top of the backend branch in one step.

Equivalent subcommand syntax:

but branch move feature/frontend feature/backend

DO NOT use uncommit + branch delete + branch new -a to stack existing branches. That approach fails because git branch names persist even after but branch delete. Always use but move <branch> <target-branch> (or the equivalent but branch move ...).

To unstack (make a stacked branch independent again):

but move feature/logging zz

Equivalent subcommand syntax:

but branch move --unstack feature/logging

Note: branch stack/tear-off operations use branch names (like feature/frontend) or branch CLI IDs, while commit reordering uses commit IDs (like c3). Do NOT use but undo to unstack — it may revert more than intended and lose commits.

Stacked dependency / commit-lock recovery

A dependency lock occurs when a file was originally committed on branch A, but you're trying to commit changes to it on branch B. Symptoms:

• but commit succeeds but the file still appears in unassignedChanges in the --status-after output
• The file shows as "unassigned" instead of being staged to any branch

Recovery: Stack your branch on the dependency branch, then commit:

1. but status -fv — identify which branch originally owns the file (check commit history).
2. but move <your-branch-name> <dependency-branch-name> — stack your branch on the dependency. Uses full branch names, not CLI IDs.
3. but status -fv — the file should now be assignable. Commit it.
4. but commit <branch> -m "<msg>" --changes <id> --status-after

If but move <branch> <target-branch> fails: Do NOT try uncommit, squash, or undo to work around it — these will leave the workspace in a worse state. Instead, re-run but status -fv to confirm both branches still exist and are applied, then retry with exact branch names from the status output.

Resolve conflicts after reorder/move

NEVER use git add, git commit, git checkout --theirs, git checkout --ours, or any git write commands during resolution. Only use but resolve commands and edit files directly with the Edit tool.

If but move causes conflicts (conflicted commits in status):

1. but status -fv — find commits marked as conflicted.
2. but resolve <commit-id> — enter resolution mode. This puts conflict markers in the files.
3. Read the conflicted files to see the <<<<<<< / ======= / >>>>>>> markers.
4. Edit the files to resolve conflicts by choosing the correct content and removing markers.
5. but resolve finish — finalize. Do NOT run this without editing the files first.
6. Repeat for any remaining conflicted commits.

Common mistakes: Do NOT use but amend on conflicted commits (it won't work). Do NOT skip step 4 — you must actually edit the files to remove conflict markers before finishing.

Git-to-But Map

Notes

• Prefer explicit IDs over file paths for mutations.
• --changes accepts comma-separated values (--changes a1,b2) or repeated flags (--changes a1 --changes b2), not space-separated.
• Read-only git inspection (git log, git blame, git show --stat) is allowed.
• After a successful --status-after, don't run a redundant but status -fv unless you need new IDs.
• Use but show <branch-id> to see commit details for a branch, including per-commit file changes and line counts.
• Per-commit file counts: but status does NOT include per-commit file counts. Use but show <branch-id> or git show --stat <commit-hash> to get them.
• Avoid --help probes; use this skill and references/reference.md first. Only use --help after a failed attempt.
• Run but skill check only when command behavior diverges from this skill, not as routine preflight.
• For command syntax and flags: references/reference.md
• For workspace model: references/concepts.md
• For workflow examples: references/examples.md