Core Web Vitals (Web Quality Skills)
SkillFix LCP, INP and CLS using real field data and lab traces, not guesswork.
by addyosmani Listed Jan 18, 2026
Clone or download it from github.com, then drop the folder into ~/.claude/skills/ (Claude Code) or your agent's skills directory.
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About Core Web Vitals (Web Quality Skills)
From Addy Osmani's Web Quality Skills. Gives your agent a playbook for Core Web Vitals: find what is slowing Largest Contentful Paint, what makes interactions sluggish (INP) and what is shifting the layout (CLS), using field and lab evidence before touching code.
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