perf-audit

Profile React application build outputs to identify performance issues.

1|Updated Jan 16, 2026

Search Tags:#performance #debugging #web development #react #optimization #profiling

Ready to run

npx skills add https://github.com/WhatIfWeDigDeeper/application-tracker --skill perf-audit

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: perf-audit
Source: https://github.com/WhatIfWeDigDeeper/application-tracker/tree/main/.claude/skills/perf-audit
Command: npx skills add https://github.com/WhatIfWeDigDeeper/application-tracker --skill perf-audit

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill helps identify and fix performance bottlenecks in React applications, leading to faster load times and a smoother user experience.

Core Features & Use Cases

Performance Profiling: Analyze application builds and runtime behavior to pinpoint issues.
Optimization Strategies: Provides guidance on memoization, code splitting, image optimization, and list virtualization.
Use Case: A developer notices their Next.js application is loading slowly. They use this Skill to analyze the build output, identify large JavaScript chunks, and apply code splitting to improve initial load performance.

Quick Start

Run a performance audit on the application's build process.

Frequently Asked Questions about perf-audit

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

FAQPage Schema

How do I optimize React app performance by analyzing large bundles?▼

To optimize React app performance, you profile build outputs to identify large JavaScript chunks and apply code splitting to reduce initial load times, resulting in faster page rendering.

Why does my Next.js application load slowly and how can I fix it?▼

Your Next.js application might load slowly due to large JavaScript bundles or unnecessary re-renders. You can fix it by profiling the build output and applying optimization techniques like code splitting and image optimization.

What's the best way to identify unnecessary re-renders and memory leaks in a React app?▼

The best way to identify unnecessary re-renders and memory leaks is by profiling runtime behavior with React DevTools. This reveals specific component bottlenecks so you can apply memoization and resolve memory leaks.

Do I need React DevTools and Chrome DevTools to profile web application performance?▼

Yes, you need React DevTools and Chrome DevTools to profile web application performance effectively. These tools analyze runtime behavior and component rendering to pinpoint memory leaks and unnecessary re-renders.

When should I use memoization and list virtualization for React optimization?▼

You should use memoization and list virtualization for React optimization when profiling reveals unnecessary re-renders or large DOM structures. These techniques prevent redundant calculations and limit active DOM nodes to improve runtime performance.