What is core-web-vitals?
core-web-vitals is a Claude skill by addyosmani that lCP, INP, and CLS-specific optimizations. It is listed under Engineering practice and has no public popularity data yet.
| Type | Claude skill |
|---|---|
| Author | addyosmani |
| Repository | addyosmani/skills |
| Popularity | no public popularity data yet |
| Category | Engineering practice |
| Security | Not scanned |
| Rank | #1,248 of 1,262 Claude skills; #209 in Engineering practice |
Is core-web-vitals safe to install?
We have not scanned core-web-vitals yet because its SKILL.md could not be fetched. Read the source before installing.
| Check | Result |
|---|
How do I install core-web-vitals?
- Install with the skills CLI. Works for Claude Code and other agents that read skills.
npx skills add https://github.com/addyosmani/skills --skill core-web-vitals
- Or copy it by hand. Claude Code loads any folder with a SKILL.md from ~/.claude/skills.
git clone https://github.com/addyosmani/skills cp -r skills/core-web-vitals ~/.claude/skills/core-web-vitals
- Use it. Claude loads the skill when a task matches its description. You can also name it in your prompt.
Use the core-web-vitals skill to …
Or ask Claude to set it up
Paste this into Claude Code and it installs core-web-vitals for you:
Install the "core-web-vitals" skill from https://github.com/addyosmani/skills into ~/.claude/skills, then tell me in one line what it does.
More from addyosmani/skills
This repository has 6 Claude skills on MCPMods.
- web-quality-audit: Comprehensive quality review across performance, accessibility, SEO, and best practices categories (Not scanned)
- performance: Loading speed, runtime efficiency, and resource optimization (Not scanned)
- accessibility: WCAG compliance, screen reader support, and keyboard navigation (Not scanned)
- seo: Search engine optimization, crawlability, and structured data (Not scanned)
- best-practices: Security, modern web APIs, and code quality patterns (Not scanned)