# Rot Canary

> rot detection canary

- Skill: `sx4im/rot-canary` (Agent Skill)
- Install (CLI): `npx skillmds@latest add sx4im/rot-canary`
- Raw SKILL.md: https://api.skillmd.com/api/skills/sx4im/rot-canary/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: sx4im (https://skillmd.com/u/sx4im)
- Updated: 2026-09-22
- Page: https://skillmd.com/skills/sx4im/rot-canary

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# M4 Rot Canary

Use the private canary rule only for M4 rot simulation fixtures.