Does this skill help with memory leaks?

Yes, it includes patterns for analyzing the Memory tab to find growing heaps, large retained objects, and detached DOM elements.

How does it help with large JavaScript bundles?

It provides a methodology for identifying large dependencies, duplicate code, and missing code-splits, then suggests specific actions like tree shaking.

What metrics does this skill help optimize?

The skill focuses on Core Web Vitals (Largest Contentful Paint, Interaction to Next Paint, Cumulative Layout Shift) and general runtime efficiency.

Can it run automated Lighthouse tests?

Yes, it includes a dedicated runtime script to execute Lighthouse audits directly from the command line for specific URLs.

Performance Profiling Specialist

Name: Performance Profiling Specialist
Author: claudiodearaujo

byclaudiodearaujo

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Analytics & Monitoring

Optimizes application speed and stability through structured measurement, bottleneck analysis, and Core Web Vitals refinement.

The Performance Profiling skill equips Claude with a rigorous framework for identifying and resolving performance bottlenecks in web applications. By following a 'Measure, Analyze, Optimize' workflow, it enables Claude to audit Core Web Vitals like LCP and INP, perform bundle analysis to reduce script size, and conduct deep-dive runtime profiling to eliminate UI jank. This skill is essential for developers looking to improve user experience and SEO rankings through evidence-based technical optimizations rather than guesswork.

Key Features

01Bundle analysis to detect duplicate dependencies and unused code

02Core Web Vitals measurement and target tracking (LCP, INP, CLS)

03Automated Lighthouse auditing using integrated Python scripts

04Runtime profiling to identify long-running tasks and UI blocking

05Memory leak detection through heap and retained reference analysis

061 GitHub stars

Use Cases

01Identifying and fixing high Core Web Vitals scores to improve SEO

02Conducting automated performance audits during CI/CD or development cycles

03Reducing JavaScript bundle sizes by implementing code splitting and tree shaking

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