perf-audit

To audit localhost page performance, this Skill runs Lighthouse audits and collects Core Web Vitals via a performance trace. It analyzes network activity, render-blocking resources, and DOM patterns to pinpoint bottlenecks and output an actionable markdown report.

Yes, you can run a Lighthouse performance trace on local Next.js or Astro projects. The Skill is primarily applied after code generation and QA in these frameworks but can be invoked on any local page to diagnose performance bottlenecks.

The best way to find render-blocking resources is through a performance trace that analyzes network patterns and DOM interactions. This Skill collects trace data and generates a compressed trace file for regression testing and PR-ready documentation.

No external dependencies or components are required to run the performance audit. The Skill operates independently to execute Lighthouse audits, trace Core Web Vitals, and produce a structured markdown performance report.

The localhost performance audit generates a structured markdown performance report containing actionable, evidence-based fixes. It also outputs a compressed trace archive file that can be used for regression testing and PR-ready documentation.

Running a localhost performance audit catches bottlenecks early by analyzing network activity and render-blocking resources before deployment. It converts Lighthouse and Core Web Vitals findings into actionable fixes, reducing page load times and user frustration.