Git-native worktree management via a bundled single-file CLI - create, list (with per-worktree git stats), and safely tear down isolated checkouts under .worktrees/ for parallel workstreams. Use when the user or an orchestrating skill wants to "create a worktree", "work on this in a separate worktree", "spin up an isolated checkout", "list my worktrees", "clean up / remove a worktree", or invokes /prp-worktree.