web-quality-skills

addyosmani/web-quality-skills

Agent Skills for optimizing web quality based on Lighthouse and Core Web Vitals.

Install

GitHub: addyosmani/web-quality-skills
Stars: ★ 2.9k
License: MIT
Language: Shell
Last push: Aug 24, 2026
Topics: accessibility · core-web-vitals · lighthouse · testing · web-performance

Run an evidence-led web quality audit across Lighthouse and source categories
Diagnose and improve Core Web Vitals such as LCP, INP and CLS
Check accessibility against WCAG 2.2, including screen reader and keyboard support
Improve SEO, crawlability and structured data, and apply security and best practices

Run npx skills add addyosmani/web-quality-skills
In Claude Code run /plugin marketplace add and /plugin install web-quality-skills@addy-web-quality-skills
Ask in plain language, such as auditing a page for web quality issues
Optionally connect Chrome DevTools MCP for live Lighthouse audits

Stack-agnostic, working with React, Vue, Angular, Svelte, Next.js and more. Live Lighthouse audits and performance traces need Chrome DevTools MCP.

Summarized by AI from the project docs; check the official docs before relying on it.

reaCommunity skills · ★ 380k
Reverse engineer anything with agents, from app behavior down to native binaries.
skillsCommunity skills · ★ 184k
Public repository for Agent Skills
ponytailCommunity skills · ★ 176k
Makes your AI agent think like the laziest senior dev in the room. The best code is the code you never wrote.
agent-skillsCommunity skills · ★ 110k
Production-grade engineering skills for AI coding agents.
paperclipCommunity skills · ★ 107k
The open-source app everyone uses to manage agents at work