The emergency brake for when OMC modes refuse to stop cleanly. It auto-detects which mode is running (autopilot, ralph, ultrawork, swarm, team, etc.) and kills it in the right order, respecting dependencies like ralph's linked ultrawork or team's graceful shutdown flow. The state tools are deferred, so you'll need to ToolSearch them first or the whole thing fails. When that happens, there's a bash fallback that nukes state files directly, though it won't work for autopilot (breaks resume data) or omc-teams (needs tmux cleanup). Use --force to scorched-earth every session and legacy artifact at once. Mostly you'll invoke this when a stop hook detects completion, but it's also your escape hatch when modes get stuck.
npx skills add https://github.com/yeachan-heo/oh-my-claudecode --skill cancel