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react - React 19 performance optimization guide and best practices

Provides performance optimization rules for React 19 applications, covering concurrent rendering, Server Components, actions, hooks, and memoization.

Tags

Updated: 2026-09-23
reactreact-19performance-optimizationconcurrent-renderingserver-components

Capabilities

Optimize React 19 application performanceConfigure concurrent rendering featuresImplement Server Components boundariesManage form actions and state

Typical Inputs

React component codeReact project codebase

Typical Outputs

Optimized React 19 codePerformance optimization recommendations

What this skill does

  • Optimize React 19 application performance
  • Configure concurrent rendering features
  • Implement Server Components boundaries
  • Manage form actions and state
  • Optimize data fetching with hooks
  • Configure automatic memoization

Inputs

  • React component code
  • React project codebase

Outputs

  • Optimized React 19 code
  • Performance optimization recommendations

Requirements

  • React 19 or 19.2
  • React Compiler v1.0+

Source

  • Spec: SKILL.md

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