performance-profiler

Profile CPU usage, memory leaks, and bundle size in Node.js and browsers.

Updated Oct 1, 2025
One-click install
npx skills add https://github.com/j0KZ/mcp-agents --skill performance-profiler
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: performance-profiler
Source: https://github.com/j0KZ/mcp-agents/tree/main/starter-kit/template/.claude/skills/performance-profiler
Command: npx skills add https://github.com/j0KZ/mcp-agents --skill performance-profiler

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

It enables profiling CPU, memory and bundle size to optimize performance.

Core Features & Use Cases

  • "CPU profiling"
  • "Memory analysis"
  • "Bundle optimization"
  • "Network/perf"
  • "Rendering perf"

Quick Start

Start profiling, then stop and review.

Frequently Asked Questions about performance-profiler

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

FAQPage Schema
How do I profile CPU and memory performance in Node.js and browser applications?

CPU and memory profiling diagnoses slow response times and detects memory leaks by capturing runtime behavior. Use startup profiling to identify initialization bottlenecks, then analyze flamegraphs and memory snapshots to pinpoint hotspots and leaks across API calls, page loads, and UI rendering.

What's the best way to reduce bundle size and measure performance impact?

Bundle optimization analyzes your application's package size and dependencies to identify bloat. Measure the impact using Core Web Vitals and network performance assessment to ensure reductions actually improve load times and user experience.

Can I detect performance regressions automatically?

Automated performance regression detection tracks CPU, memory, and rendering performance metrics over time. It flags unexpected degradations before they reach production, integrating with Chrome DevTools Protocol for real-time analysis.

How do I analyze rendering performance for slow UI updates?

Rendering performance measurement captures frame rates and interaction delays during UI rendering. Profiling identifies CPU bottlenecks in event handlers and memory pressure affecting frame consistency across interactive workflows.

Does this work with both Node.js backend and browser environments?

Yes, profiling applies across Node.js and browser environments. CPU profiling, memory analysis, and network performance assessment work on servers for API optimization and in browsers for page load and UI rendering analysis.