Use when applies to any site in health, medicine, finance, law, safety, news, or similar fields. Use when auditing content quality for sites in YMYL categories or investigating why high-quality-seeming content underperforms.
Install
npx skills add thedaviddias/Front-End-Checklist --skill ymyl-detectionnpx skills add thedaviddias/Front-End-Checklist --skill ymyl-detection -a claude-code -gnpx skills add thedaviddias/Front-End-Checklist --skill ymyl-detection -a codex -ggemini skills install https://github.com/thedaviddias/Front-End-Checklist.git --path skills/ymyl-detectiongh skill install thedaviddias/Front-End-Checklist ymyl-detectiongit clone --depth 1 https://github.com/thedaviddias/Front-End-Checklist /tmp/thedaviddias__Front-End-Checklist
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/thedaviddias__Front-End-Checklist/skills/ymyl-detection ~/.claude/skills/ymyl-detection # Claude Code
cp -R /tmp/thedaviddias__Front-End-Checklist/skills/ymyl-detection ~/.agents/skills/ymyl-detection # Codex, Cursor, Gemini CLI, Copilot, OpenCode