Agent Skills: loose-ends

End-of-session cleanup sweep. Triggers when the user signals they're wrapping up — "what else to wrap up before I end", "wrap up", "done for now", "anything left", "before I end", "loose ends", "clean up". Sweeps for uncommitted/unpushed work, stale branches & worktrees, leftover files & dev processes, ssh-key state, unverified changes, and unsaved knowledge — auto-doing the safe checks, asking before anything that could lose work.