AgentToolHub
Skill

performance

performance — a Claude Code skill from addyosmani/web-quality-skills

Features

  • ✓Optimize web performance with Lighthouse audits
  • ✓Enhance Core Web Vitals for better SEO
  • ✓Real-world performance engineering insights
  • ✓WCAG 2.2 compliant accessibility checks
  • ✓Modern SEO requirements met
  • ✓Explore more at [GitHub](https://github.com/addyosmani/web-quality-skills)

Installation Guide

add-skill is a powerful CLI tool that lets you install agent skills onto your coding agents from git repositories. Whether you're using OpenCode, Claude Code, Codex, or Cursor, the add-skill tool makes it simple to extend your agent's capabilities with specialized instruction sets. Use add-skill to automate release notes, create pull requests, integrate with external tools, and more. Simply run npx add-skill to get started.

bash
npx skills add addyosmani/web-quality-skills

or

text
npx add-skill addyosmani/web-quality-skills

Or manually:

bash
cp -r skills/* ~/.claude/skills/

#### claude.ai

Add skills to your project knowledge or paste the SKILL.md contents into your conversation.

Usage

Skills activate automatically when your request matches their description. Examples:

text
Audit this page for web quality issues
text
Optimize performance and fix Core Web Vitals
text
Review accessibility and suggest improvements
text
Make this SEO-ready

Reviews