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frontmatter-validation

80 / 100 · Low risk

Fine to try. Some of what it can do is expected: a coding skill usually runs build and test commands.

By Everyone-Needs-A-Copilot/claude-copilot (GitHub) · coding · 14 stars · scanned at commit 0f57aa5

Validate and fix YAML frontmatter metadata in markdown documentation files. Covers required fields, field formats, and schema compliance for SKILL.md and knowledge-copilot files. Use proactively when auditing documentation frontmatter, reviewing SKILL.md files, or fixing YAML metadata errors.

Works with any agent that supports SKILL.md skills.

What this skill can do

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'frontmatter-validation' ] || [ -L ~/.agents/skills/'frontmatter-validation' ]; then echo 'A skill folder named frontmatter-validation already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/Everyone-Needs-A-Copilot/claude-copilot' "$d" && git -C "$d" checkout --quiet '0f57aa588a5c2c7da021b976edc1b176ea602022' -- 'templates/skills/frontmatter-validation' && mkdir -p ~/.agents/skills && cp -R "$d"/'templates/skills/frontmatter-validation' ~/.agents/skills/'frontmatter-validation' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'frontmatter-validation' ~/.claude/skills/'frontmatter-validation' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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