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React Performance

React Performance is an agent skill (a SKILL.md file) from affaan-m/ECC. React and Next.js performance optimization patterns adapted from Vercel Engineering's React Best Practices (https://github.com/vercel-labs/agent-skills). It works with Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot and OpenCode and has 274,402 GitHub stars across a repository of 10 listed skills.

github.com/affaan-m/ECC/skills/react-performance (opens in a new tab)

View on GitHub (opens in a new tab)View on skills.sh (opens in a new tab)

Add this skill

Claude

This repository is a Claude Code plugin marketplace. In Claude Code:

/plugin marketplace add affaan-m/ECC
/plugin install ecc@ecc

In the Claude apps, zip the react-performance folder and upload it under Customize > Skills > + > Upload a skill (code execution must be on).

ChatGPT / Codex

Codex reads skills from .agents/skills/ in a repo or ~/.agents/skills/ for every project:

git clone --depth 1 https://github.com/affaan-m/ECC.git
cp -r ECC/skills/react-performance .agents/skills/react-performance   # repo; ~/.agents/skills for all projects

Standalone skills also load in the ChatGPT desktop app.

Cursor

Cursor loads skills from .cursor/skills/ (or ~/.cursor/skills/) and also reads .claude/skills/:

git clone --depth 1 https://github.com/affaan-m/ECC.git
cp -r ECC/skills/react-performance .cursor/skills/react-performance   # project; ~/.cursor/skills for all projects

Source (checked Oct 7, 2026): code.claude.com/docs/en/skills (opens in a new tab), code.claude.com/docs/en/plugin-marketplaces (opens in a new tab), support.claude.com/en/articles/12512180-using-skills-in-claude (opens in a new tab), learn.chatgpt.com/docs/build-skills (opens in a new tab), cursor.com/docs/context/skills (opens in a new tab)

What this skill does

React and Next.js performance optimization patterns adapted from Vercel Engineering's React Best Practices (https://github.com/vercel-labs/agent-skills). Organizes 70+ rules across 8 priority categories — waterfalls, bundle size, server-side, client fetching, re-render, rendering, JS micro-perf, advanced. Use when writing, reviewing, or refactoring React/Next.js code for performance.

When it triggers

  • Use when writing, reviewing, or refactoring React/Next.

More skills in affaan-m/ECC

10 skills are listed from this repository.

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All Design & frontend

FAQ

React Performance FAQ

Still curious? Email info@appsgit.com.

What is the React Performance skill?

React Performance is an agent skill (a SKILL.md file) from affaan-m/ECC. React and Next.js performance optimization patterns adapted from Vercel Engineering's React Best Practices (https://github.com/vercel-labs/agent-skills). It works with Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot and OpenCode and has 274,402 GitHub stars across a repository of 10 listed skills. Its SKILL.md lives at github.com/affaan-m/ECC/skills/react-performance.

How do I install the React Performance skill?

In Claude Code, run /plugin marketplace add affaan-m/ECC and then /plugin install ecc@ecc. For Codex or Cursor, copy the react-performance folder into .agents/skills/ or .cursor/skills/.

Is the React Performance skill free?

Yes. The repository is open source under the MIT license.

Is React Performance maintained?

The repository's most recent commit was on Oct 2, 2026. Its latest release is v2.2.3. appsgit only lists skills from repositories with a commit in the last six months.