Agent Skill

Web Performance (DevTools)

testing-qa

Measures Core Web Vitals and other performance metrics via Chrome DevTools MCP, flagging render-blocking resources and layout shifts.

Install

Claude Code

Run in a terminal:

npx skills add https://github.com/cloudflare/skills --skill web-perf

Links

Source repository

Skip the install — WingMan's own 271 tools run hosted, no setup: browse the hosted tool directory. One endpoint, one free key: https://wingmanprotocol.com/mcp.