skill-creator: recommend quoting description for strict YAML parsers#964
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jarrieta86 wants to merge 1 commit intoanthropics:mainfrom
Open
skill-creator: recommend quoting description for strict YAML parsers#964jarrieta86 wants to merge 1 commit intoanthropics:mainfrom
jarrieta86 wants to merge 1 commit intoanthropics:mainfrom
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Problem
SKILL.md files authored following
skill-creatoroften end up with an unquoteddescription:value containing:(e.g.Use when: ...,X: Y). Claude Code's YAML parser is lenient and accepts this, but stricter parsers (Codex CLI) reject the file withmapping values are not allowed in this context, and the skill is silently skipped at load time.In our repo, 6 skills broke this way before we noticed, because nothing in the authoring loop surfaces the incompatibility.
Change
Add a short "Frontmatter YAML" subsection under "Anatomy of a Skill" that:
name/descriptionare YAML, and parsers differ in strictness.descriptionin single quotes.'').Why in skill-creator
This is the skill Claude follows when authoring new skills, so the guidance has to live here to prevent the footgun from being reintroduced by future runs.