Use when the user wants to finish a development branch or asks what to do with finished work (merge it, push it and open a pull request, keep it for later, throw it away, or remove its worktree), and before any merge, push, branch deletion or worktree removal at the end of a piece of work. Runs the tests first, presents the options as the user's decision, and never destroys unmerged commits or uncommitted files without explicit confirmation.