web-perf Skill
Analyzes web performance using Chrome DevTools MCP. Measures Core Web Vitals (FCP, LCP, TBT, CLS, Speed Index), identifies render-blocking resources, network dependency chains, layout shifts, caching issues, and accessibility gaps. Use when asked to audit, profile, debug, or optimize page load performance, Lighthouse s Published by openai in plugins.
What is web-perf Skill?
Analyzes web performance using Chrome DevTools MCP. Measures Core Web Vitals (FCP, LCP, TBT, CLS, Speed Index), identifies render-blocking resources, network dependency chains, layout shifts, caching issues, and accessibility gaps. Use when asked to audit, profile, debug, or optimize page load performance, Lighthouse s Published by openai in plugins. This profile combines repository metadata with install, compatibility, and usage signals so developers can quickly decide whether it fits their agent workflow before opening the source repository.
Automated repository signals based on public metadata such as recency, license, installation evidence, and adoption. These are not a security audit or endorsement.
Key capabilities
- Includes SKILL.md support
- Reusable instructions support
- Security review
- Documentation
- Data analysis
- Security review use cases
- Documentation use cases
Technical details
- Install or run with Copy skill directory
When to use web-perf Skill
- Use it for security review.
- Use it for documentation.
- Use it for data analysis.
Built with
Editorial notes
Source
- Creator: openai
- Repository: openai/plugins
- Skill file: plugins/cloudflare/skills/web-perf/SKILL.md
What it does
Analyzes web performance using Chrome DevTools MCP. Measures Core Web Vitals (FCP, LCP, TBT, CLS, Speed Index), identifies render-blocking resources, network dependency chains, layout shifts, caching issues, and accessibility gaps. Use when asked to audit, profile, debug, or optimize page load performance, Lighthouse s
Skill instructions
Web Performance Audit Your knowledge of web performance metrics, thresholds, and tooling APIs may be outdated. Prefer retrieval over pre-training when citing specific numbers or recommendations. Retrieval Sources | Source | How to retrieve | Use for | |--------|----------------|---------| | web.dev | https://web.dev/articles/vitals | Core Web Vitals thresholds, definitions | | Chrome DevTools docs | https://developer.chrome.com/docs/devtools/performance | Tooling APIs, trace analysis | | Lighthouse scoring | https://developer.chrome.com/docs/lighthouse/performance/performance-scoring | Score weights, metric thresholds | FIRST: Verify MCP Tools Available Run this before starting. Try calling navigatepage or performancestarttrace. If unavailable, STOP—the chrome-devtools MCP server isn't configured. Ask the user to add this to their MCP config: json "chrome-devtools": { "type": "local", "command": ["npx", "-y", "chrome-devtools-mcp@latest"] } Key Guidelines - Be assertive: Verify claims
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Frequently asked questions
What is web-perf?
web-perf is a open-source AI agent skill with Copy skill directory. Analyzes web performance using Chrome DevTools MCP. Measures Core Web Vitals (FCP, LCP, TBT, CLS, Speed Index), identifies render-blocking resources, network dependency chains, layout shifts, caching issues.
Who is web-perf best for?
web-perf is best for reusing agent instructions, scripts, and references, security review workflows, documentation workflows, data analysis workflows.
How do I install web-perf?
Install or run web-perf using Copy skill directory. Check web-perf for the latest setup command.
Is web-perf actively maintained?
web-perf may need a closer maintenance check before production use.
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