1
Measures Core Web Vitals (LCP, TBT, CLS) via Chrome DevTools MCP and pinpoints render-blocking resources and layout shifts — canonical web performance tuning from Cloudflare.
Best Performance Optimization Skills for Claude Code (2026)
The best Claude Code skills for performance optimization work — from official skill repos to community contributors. Hand-filtered from 15 genuinely relevant results across 30,000+ skills.
✅ 10 curated📊 15 relevant in catalog
At a glance
Our top pick for performance optimization is web-perf: Measures Core Web Vitals (LCP, TBT, CLS) via Chrome DevTools MCP and pinpoints render-blocking resources and layout shifts — canonical web performance tuning from Cloudflare. vercel-react-best-practices and react-component-performance round out the podium. This list includes skills maintained by Cloudflare, Vercel, Automattic, GitHub. 9 of the 10 picks are rated high-relevance for this exact use case.
2
Vercel Engineering's React/Next.js performance guidelines for writing, reviewing, and refactoring code toward optimal rendering and load times.
3
Diagnoses and fixes slow renders, re-render thrash, laggy lists, and expensive computations in React components.
4
Browser performance analysis and profiling via Chrome DevTools MCP — network, rendering, and runtime bottleneck inspection.
5
Automattic's backend WordPress perf agent: profiling with WP-CLI, Server-Timing, Query Monitor, and database/query optimization.
6
Query performance tuning, OLTP/OLAP optimization, and data modeling across modern cloud-native databases.
7
PostgreSQL-specific optimization covering JSONB, indexing, and advanced query techniques for faster database access.
8
Profiles iOS performance with Instruments and LLDB — finds memory leaks, retain cycles, main-thread hangs, and slow rendering.
9
Captures diagnostic traces to pinpoint production .NET performance issues and choose the right profiling tools.
10
Writes and optimizes high-performance C++ using modern C++20/23 and systems-level techniques for compute-heavy code.
Frequently asked
What is the best performance optimization skill for Claude Code?
web-perf (from cloudflare/skills) is our #1 pick. Measures Core Web Vitals (LCP, TBT, CLS) via Chrome DevTools MCP and pinpoints render-blocking resources and layout shifts — canonical web performance tuning from Cloudflare. It ranked first out of 15 genuinely relevant skills we evaluated for performance optimization.
Are there official performance optimization skills from major companies?
Yes — this ranking includes skills maintained by Cloudflare, Vercel, Automattic, GitHub, Microsoft .NET. Official and corporate-maintained skills tend to be better documented and more actively updated than one-off community scripts.
How do I install a performance optimization skill in Claude Code?
Open any skill on this list for full instructions. In most cases you copy the skill folder (with its SKILL.md) into your project's .claude/skills/ directory, or install it via the source repo's plugin marketplace. All 10 listed skills are open source and free.