This fixture must fail canonical skill validation because its frontmatter contains an unknown key.
1---2name: unknown-frontmatter3description: validator, fixture4---56# Unknown frontmatter fixture78This fixture must fail canonical skill validation because its frontmatter contains an unknown key.
Run npx skillmds@latest add lost-rob0t/unknown-frontmatter in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.
validator, fixture It is listed under Coding & Dev Tools on SkillMD.
This skill has not completed SkillMD's automated safety review yet. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.
This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.
Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.
lost-rob0t (@lost-rob0t) published this skill. Their other Agent Skills are listed on their SkillMD profile.