Cancel Skill

When to use

Use /cancel (or cancelomc / stopomc) to stop an active OMX mode and perform its documented cleanup. Read AGENTS.md#durable-runtime-invariants-canonical-ssot first; it is the invariant authority for scope, ownership, hooks, and Team cleanup.

Inputs and preconditions

• Accepted forms are /cancel and /cancel --force.
• Reject --all, unknown flags, repeated flags, and mixed flags before mutation.
• Discover the current session/root with the state read surfaces before cleanup:

  omx state list-active --json
  omx state get-status --mode <mode> --json
  

• Confirm the current session/root and exact target before cleanup; stop when the required evidence is missing.

Operational steps

1. Parse and validate arguments; select one exact session/root scope.
2. Inspect active modes in dependency order: autopilot → ralph → ultrawork → ecomode → ultraqa → swarm → ultrapilot → pipeline → team → plan-consensus. Legacy names here are recovery inputs, not entrypoints for new work. Use the installed runtime's status/API for current modes; this historical list is not an exhaustive discovery filter.
3. Cancel Autopilot while preserving its resumable state; clean only linked child modes it owns.
4. For legacy Ralph, terminalize the target state (active:false, current_phase:"cancelled", completed_at) and a proven linked Ultrawork/Ecomode state in the same scope. Confirm post-conditions against the installed OMX release's docs/contracts/ralph-cancel-contract.md; this is an upstream runtime reference, not a TenonAdmin file. If unavailable, report the missing recovery contract rather than inventing cleanup steps.
5. Clear standalone modes only after proving they are not linked to another active mode.
6. For Team, inspect the runtime with omx team status <team> --json; use omx team shutdown <team> after the normal completion gate, or follow the explicit abort path.
7. Clear only the selected mode/session state through the state API, for example:

   omx state clear --input '{"mode":"<mode>","session_id":"<session>"}' --json
   

8. With --force, perform its documented native-stop cleanup. Report rollback or cleanup failures rather than claiming success.

Exit and evidence

Report one result per selected mode: mode, scope/session, terminal phase, preserved state, linked cleanup, and any refusal reason. A clean no-op reports No active OMX modes detected. Include Team status and shutdown evidence when Team was selected.