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Optimising an existing React app v1.0.0

Use this resource to optimise an existing React app and solve its state problems

New

  • 443 downloads
  • 136 likes
  • 180 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install react-performance-subagent

First time: connect the CLI with

npx --yes palatekit@latest login

This subagent works on React 18+ projects: memoisation, code splitting, concurrent rendering, state management with Redux Toolkit, Zustand or Jotai, and server-side rendering. It analyses the existing code before proposing changes. The main agent calls it for a slow React app or state that is hard to maintain.

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Updated November 2, 2026

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Details

Works in
Install guides
Generates with
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Licence
MIT

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What you get

  • The subagent file (in English): analysis method, React checklist and performance rules
  • Guidance on state management, lazy loading and tests

Good fit for

  • Reducing the number of renders in a React dashboard
  • Choosing a state management tool for a growing project

Not for

    Tags

    • react
    • performance
    • state
    • rendering

    About

    You say

    “Find out why this list re-renders on every keystroke and fix it.”

    Card for “Optimising an existing React app”

    Subagent published by VoltAgent under the MIT license, delivered in its original version.

    Show more

    How to use it

    1. Copy the file into .claude/agents/ (project) or ~/.claude/agents/ (all your projects)
    2. Ask your agent to optimise an existing React app and solve its state problems, or call the subagent by name
    3. Review its work

    Content preview

    Files

    • LICENSE1.1 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • react-performance-subagent.md6.9 KB

    Origin and licence

    Listed unmodified

    Author
    VoltAgent
    Source
    github.com/VoltAgent/awesome-claude-code-subagents/blob/f2e2ea7e0202cc05fa2d469fcb2c57fe08603450/categories/02-language-specialists/react-specialist.md
    Licence
    MIT

    Notice

    « react-specialist » (VoltAgent, MIT) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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