When should I use the included Lighthouse script?

Use the lighthouse_audit.py script during the development or CI/CD stages to establish a performance baseline and validate improvements.

How does this skill help with Core Web Vitals?

It provides specific targets for LCP, INP, and CLS, along with workflows to measure these metrics using Lighthouse and automated scripts.

Can it identify memory leaks?

Yes, the skill includes patterns for memory tab analysis, helping you find growing heaps, retained references, and detached DOM nodes.

Does it suggest specific code changes?

It identifies common bottlenecks like large dependencies or render-blocking JS and recommends specific actions like lazy loading, tree shaking, and code splitting.

Performance Profiling

Name: Performance Profiling
Author: claudiodearaujo

byclaudiodearaujo

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Analytics & Monitoring

Optimizes application performance through systematic measurement, analysis, and targeted optimization techniques.

The Performance Profiling skill provides a comprehensive framework for identifying and resolving performance bottlenecks in web applications. It guides Claude through a structured 'Baseline, Identify, Fix, Validate' workflow, incorporating Core Web Vitals targets, bundle analysis, and runtime profiling. By leveraging tools like Lighthouse and Chrome DevTools principles, it helps developers eliminate layout thrashing, reduce bundle sizes, and fix memory leaks to ensure high-speed, stable user experiences.

Key Features

01Runtime profiling for JavaScript execution and rendering bottlenecks

02Automated Lighthouse performance audits and Core Web Vitals tracking

03Systematic bundle analysis to identify large dependencies and unused code

04Memory leak detection and heap analysis patterns

05Structured optimization workflow with clear priority actions

061 GitHub stars

Use Cases

01Diagnosing slow page loads and improving Core Web Vitals scores

02Reducing production bundle sizes through code splitting and tree shaking

03Identifying UI jank and long-running JavaScript tasks that block the main thread

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add claudiodearaujo/sistema-de-narra-o-de-livro performance-profiling

For use in Claude.ai and ChatGPT

Download Skill