web-perf

An agent skill by cloudflare, from cloudflare/skills. Tags: analysis, lighthouse, performance, validation, web.

What it does

Audit, diagnose, or optimize website loading and interaction performance, Core Web Vitals, and Lighthouse performance scores.

Install

With the skills CLI, which installs into Claude Code, Codex, Cursor and other agents:

npx skills add cloudflare/skills --skill web-perf

Or copy the skill folder into Claude Code's skills directory by hand (~/.claude/skills for every project, or .claude/skills inside one):

git clone --depth 1 https://github.com/cloudflare/skills
cp -r skills/skills/web-perf ~/.claude/skills/web-perf

Safety box score

Not rated yet. A safety box score grades what a skill and its scripts can reach on the machine of whoever installs it, across eight categories from shell execution to secrets access. Anyone can request one from this page; it is saved for everyone. How the score works.

Source

Repository

cloudflare/skills (all skills from this repository)

Path

skills/web-perf/SKILL.md

Branch

main

Updated

2026-09-20

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