performance-profiling

Identify web application performance bottlenecks from Lighthouse audits and runtime profiling.

Updated Mar 30, 2026
One-click install
npx skills add https://github.com/pckienuit/GameDev1 --skill performance-profiling-pckienuit
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: performance-profiling
Source: https://github.com/pckienuit/GameDev1/tree/main/.cursor/skills/performance-profiling
Command: npx skills add https://github.com/pckienuit/GameDev1 --skill performance-profiling-pckienuit

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) components.

What problem does it solve?

This Skill helps you identify and prioritize performance bottlenecks by measuring real metrics before making optimization changes.

Core Features & Use Cases

  • Performance Audits: Run repeatable audits to assess loading, accessibility, best practices, and SEO signals.
  • Runtime Analysis: Inspect long tasks, rendering work, and memory growth to understand why an app feels slow or unstable.
  • Use Case: Use it when a site has slow page loads, janky interactions, or unexplained regressions and you need a clear optimization path.

Quick Start

Use the performance-profiling skill to analyze my app’s bottlenecks and tell me the highest-impact fixes first.

Frequently Asked Questions about performance-profiling

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I identify performance bottlenecks in my web application?

To identify performance bottlenecks, you can run repeatable audits and runtime profiling to measure real metrics. This surfaces the exact causes of slow loading, weak interactivity, and unstable rendering before you make optimization changes.

What is runtime profiling used for in web development?

Runtime profiling inspects long tasks, rendering work, and memory growth to understand why an app feels slow or unstable. It helps developers pinpoint specific execution issues during runtime rather than just guessing at optimization targets.

How do I run Lighthouse audits in a CI workflow?

You can run Lighthouse audits in CI workflows by executing performance analysis via headless browser execution. This satisfies score reporting, summary generation, and timeout handling requirements for repeatable performance analysis.

Can I use performance profiling for memory investigation?

Yes, you can use performance profiling for memory investigation to inspect memory growth and understand why an application becomes unstable. It analyzes runtime metrics to identify the root causes of memory leaks and unexplained regressions.

What is the best way to prioritize web app optimization fixes?

The best way to prioritize optimization fixes is by measuring real metrics through repeatable audits to find bottlenecks first. This provides a clear optimization path, highlighting the highest-impact fixes to address slow page loads and janky interactions.

Does performance profiling handle timeout handling for headless browser execution?

Yes, performance profiling handles timeout handling during headless browser execution. This ensures reliable, repeatable performance analysis and score reporting even when web applications take longer to load or render during testing.