/clean-gone-branches

name: clean-gone-branches
description: This skill should be used when user asks to "clean gone branches", "remove deleted local branches", "prune branches removed from remote", or explicitly invokes "clean-gone-branches".

Clean Gone Branches

Remove local git branches that have been deleted from the remote.

Process

1. **Update remote references**

• Run `git fetch --prune`.

2. **Inspect local state**

• Run `git branch -vv` to find branches marked as `[gone]`.
• Run `git worktree list` to see whether any of those branches still have worktrees.

3. **Remove worktrees first**

• For each `[gone]` branch that still has a worktree, remove the worktree before deleting the branch.

4. **Delete the gone branches**

• Delete each local branch marked as `[gone]`.

5. **Report the result**

• List removed worktrees and deleted branches.
• If there are no `[gone]` branches, report that nothing needed cleanup.