performance-profiling

Profile web performance using Lighthouse and browser DevTools.

Updated Feb 28, 2026
One-click install
npx skills add https://github.com/lucasfdigital/Orchard --skill performance-profiling-lucasfdigital
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: performance-profiling
Source: https://github.com/lucasfdigital/Orchard/tree/main/skills/performance-profiling
Command: npx skills add https://github.com/lucasfdigital/Orchard --skill performance-profiling-lucasfdigital

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires lighthouse, and includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill addresses the challenge of slow-loading websites and poor user experience by providing systematic methods for identifying and resolving performance bottlenecks.

Core Features & Use Cases

  • Performance Auditing: Utilizes tools like Lighthouse to measure key metrics (LCP, INP, CLS).
  • Bundle Analysis: Helps identify large dependencies and optimize code splitting.
  • Runtime Profiling: Analyzes JavaScript execution and memory usage to detect leaks and long tasks.
  • Use Case: A developer can use this skill to audit their Next.js application's performance, identify that a large library is contributing to a slow LCP, and then implement code splitting to improve load times.

Quick Start

Run a Lighthouse audit on the provided URL to assess performance.

Frequently Asked Questions about performance-profiling

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

FAQPage Schema
How do I optimize web performance using Lighthouse and Core Web Vitals?

Optimize web performance by running a Lighthouse audit to measure Core Web Vitals like LCP, INP, and CLS. This identifies bottlenecks in your web application, enabling targeted optimization strategies.

What's the best way to identify large dependencies causing slow load times?

Identify large dependencies causing slow load times through bundle analysis. This technique detects heavy libraries in your codebase, allowing you to implement code splitting and reduce the initial bundle size.

How does runtime profiling detect JavaScript execution bottlenecks?

Runtime profiling detects JavaScript execution bottlenecks by analyzing memory usage and long tasks during execution. It reveals memory leaks and blocking operations that degrade web application performance.

Can I use this approach to audit a Next.js application's performance?

Yes, you can audit a Next.js application's performance by measuring key metrics with Lighthouse. It helps pinpoint issues like large libraries affecting LCP, guiding code splitting to improve load times.

What are common performance anti-patterns for web applications?

Common performance anti-patterns for web applications include large unoptimized bundles, unmanaged JavaScript long tasks, and memory leaks. Profiling helps detect these issues to systematically resolve performance bottlenecks.

Do I need Lighthouse to measure key web performance metrics?

Lighthouse is required to measure key web performance metrics like LCP, INP, and CLS effectively. It provides the auditing baseline needed to analyze performance and guide optimization strategies.