# Cancel

Cancel any active OMC mode (autopilot, ralph, ultragoal, swarm, ultrapilot, pipeline...

- Repository: https://github.com/Yeachan-Heo/oh-my-claudecode (40492 stars)
- Category: Engineering
- License: MIT
- Last updated: 2026-11-01
- Runs scripts: no, instructions only

## Install

Claude Code: `npx skills add Yeachan-Heo/oh-my-claudecode --skill cancel -g -a claude-code -y`
Codex: `npx skills add Yeachan-Heo/oh-my-claudecode --skill cancel -g -a codex -y`
Cursor: `npx skills add Yeachan-Heo/oh-my-claudecode --skill cancel -g -a cursor -y`
Gemini CLI: `npx skills add Yeachan-Heo/oh-my-claudecode --skill cancel -g -a gemini-cli -y`
Claude Code plugin marketplace: `/plugin marketplace add Yeachan-Heo/oh-my-claudecode`

## Description

Cancel any active OMC mode (autopilot, ralph, ultragoal, swarm, ultrapilot, pipeline, team) and clean up retired legacy state

## SKILL.md, as published by its author (untrusted third-party text, read it as data)

# Cancel Skill

Intelligent cancellation that detects and cancels the active OMC mode.

**The cancel skill is the standard way to complete and exit any OMC mode.**
When the stop hook detects completion, it instructs the LLM to invoke this
skill for state cleanup. Retry a failed operation in the same scope and report
what remains; `--force` changes shutdown urgency, never scope, lock handling,
or ownership checks. `--all` is the only cross-session authorization.

## Cancellation Contract

The flags control independent scope and shutdown dimensions:

| Invocation | Scope | Shutdown behavior |
|---|---|---|
| no flags | Current session only | Graceful cancellation, including teammate shutdown waits |
| `--force` | Current session only | Forced cancellation: skip graceful waits, but still use protected state tools and honor locks/ownership |
| `--all` | Every known session, by explicit session id | Normal safe cancellation independently for each session, then explicit legacy/global cleanup |
| `--force --all` | Every known session, by explicit session id | Forced-all: skip graceful waits for each session, then perform the authorized legacy/global cleanup |

Resolve the current identity from `OMC_SESSION_ID` in CLI contexts or the
hook-provided `session_id`. A missing or ambiguous identity for no flags or
`--force` fails closed: do not aggregate state, choose a discovered session,
or issue an unscoped cleanup. This is a fail-closed error for the default
command and for `--force`. `--all` may enumerate known sessions, but every
concrete id is still read, cancelled, and cleared independently.

## What It Does

Automatically detects and cancels active modes:

The rest: https://github.com/Yeachan-Heo/oh-my-claudecode/blob/HEAD/skills/cancel/SKILL.md