This skill's frontmatter description contains an unquoted colon, which is
technically invalid YAML ("mapping values are not allowed here" in strict
parsers) but is a common authoring mistake that some clients' parsers
tolerate or repair. The client implementation guide recommends a lenient
fallback; this skill tests whether the platform has one.
Canary Phrase
The canary phrase for this skill is: QUAIL-FELDSPAR-7448
Description visibility: What description do you see for this skill
in your catalog, if any? Was it repaired (quoted), truncated at the
colon, or intact?
1---2name: probe-malformed-yaml3description: Malformed YAML Probe4---56# Malformed YAML Probe78This skill's frontmatter description contains an unquoted colon, which is9technically invalid YAML ("mapping values are not allowed here" in strict10parsers) but is a common authoring mistake that some clients' parsers11tolerate or repair. The client implementation guide recommends a lenient12fallback; this skill tests whether the platform has one.1314## Canary Phrase1516The canary phrase for this skill is: **QUAIL-FELDSPAR-7448**1718## Instructions1920When activated, report:21221. "probe-malformed-yaml activated. Canary: **QUAIL-FELDSPAR-7448**"23242. **Description visibility**: What description do you see for this skill25 in your catalog, if any? Was it repaired (quoted), truncated at the26 colon, or intact?
Run npx skillmds@latest add agent-ecosystem/probe-malformed-yaml 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.
Malformed YAML Probe It is listed under Coding & Dev Tools on SkillMD.
This skill has not completed SkillMD's automated safety review yet. Capability flags: docs only. 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.
agent-ecosystem (@agent-ecosystem) published this skill. Their other Agent Skills are listed on their SkillMD profile.