Core web vitals
Skill frankxai/claude-skills-library/packs/web-excellence/skills/core-web-vitals
Professional-grade skills for Claude Code & Claude AI - Transform Claude into a domain expert in secondsFrom the repository description
npx -y skills add frankxai/claude-skills-library --skill core-web-vitalsAssembled from the repository path, not quoted from the project. Check it against their README if it does not work.
One thing to look at
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