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How to audit React and Next.js code against Vercel's performance rules with Agent Skills

Install the skills and ask your agent to review components for waterfalls, bundle size and re-renders.

Short answer: Run npx skills add vercel-labs/agent-skills; then open your Next.js project in your agent; ask it to review a component or page for performance issues. All steps.

Who it is forA Next.js developer whose pages feel slow and who wants a prioritized fix list.

The problemPerformance problems like request waterfalls and oversized bundles are easy to miss in review.

The outcomeA review of your components against 40+ rules prioritized by impact, with fixes for the critical ones.

What you need first

  • Node.js for npx skills
  • A coding agent that supports Agent Skills
  • A Vercel project for vercel-optimize

Steps

  1. Run npx skills add vercel-labs/agent-skills
  2. Open your Next.js project in your agent
  3. Ask it to review a component or page for performance issues
  4. Fix critical findings first: eliminating waterfalls and bundle size
  5. Re-check re-render and rendering performance after the fixes

Prompt for your agent

Using the react-best-practices skill from vercel-labs/agent-skills, review <page or component> for performance issues, rank findings by the skill's impact categories, and fix the critical ones.

Caveat.

Use this in your AI agent

Ask your agent

Using the Deduped MCP, get the setup steps for vercel-labs/agent-skills and "Audit React and Next.js code against Vercel's performance rules"

Add Deduped to Claude Code once

claude mcp add --transport http deduped https://dedupedai.com/mcp

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