Web Quality Skills

by addyosmani 2.6k MIT Updated Jun 14, 2026

Web Quality Skills is an open-source testing skill for Claude Code and compatible agents, published by addyosmani. Its author describes it as: “Agent Skills for optimizing web quality based on Lighthouse and Core Web Vitals.”. The project has 2.6k stars on GitHub and is available under the MIT License license. Add it to your setup with `git clone https://github.com/addyosmani/web-quality-skills ~/.claude/skills/web-quality-skills`.

Installation

Add Web Quality Skills to your agent with:

git clone https://github.com/addyosmani/web-quality-skills ~/.claude/skills/web-quality-skills

Always review a skill's source before installing it. This command comes from the skill's public repository; the linked repo is the source of truth for exact setup steps.

When to use it

Reach for Web Quality Skills when you want testing help from your agent without writing the same instructions every session. Load the skill and the agent picks it up automatically for relevant tasks.

Strengths

  • Clear MIT License license — safe to read and adapt
  • Established project with 2,564 GitHub stars
  • Actively maintained (recent commits)

Topics

accessibilityagent-skillsclaude-skillscore-web-vitalslighthouseskillstestingweb-performance

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