# My Hostile Skill

> A skill with invisible chars and comments. Used to test sanitize_skill.

- Skill: `withastro/my-hostile-skill` (Agent Skill)
- Install (CLI): `npx skillmds@latest add withastro/my-hostile-skill`
- Raw SKILL.md: https://api.skillmd.com/api/skills/withastro/my-hostile-skill/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: withastro (https://skillmd.com/u/withastro)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/withastro/my-hostile-skill

---


# my-hostile-skill

<!-- skill authors keep their comments; this should survive a skill install -->

This skill body contains a zero-width joiner between rosie‍good (U+200D
inserted) that must be stripped on install.

It also has a Trojan Source bidi override here: ‮reversed‬ which must vanish.

End of skill.