Redux Toolkit

Structured state + RTK Query

FreeLibraries & build toolingredux-toolkit.js.org

What it is

The official, modern way to write Redux, v2. It removes most classic boilerplate with createSlice and Immer-backed mutable-looking updates, and bundles RTK Query for server-state caching. Comes with the Redux DevTools time-travel debugger.

Why it earns a slot

Worth it when state changes are complex enough that you need to replay them — checkout flows, editors with undo. The enforced structure also keeps a large AI-written codebase from turning into arbitrary setters.

Know before you commit

Still the heaviest option here and overkill for most apps. If a tutorial shows connect or hand-written action-type constants, it predates RTK — ignore it.

Getting started

npm install @reduxjs/toolkit react-redux

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Pricing snapshot

Free · MIT

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Evaluate Redux Toolkit (https://redux-toolkit.js.org) for this project, then use it only if it fits what we are already building.
Context: Structured state + RTK Query. The official, modern way to write Redux, v2. It removes most classic boilerplate with createSlice and Immer-backed mutable-looking updates, and bundles RTK Query for server-state caching. Comes with the Redux DevTools time-travel debugger.
Reviewer notes (general, not written for this codebase): Worth it when state changes are complex enough that you need to replay them — checkout flows, editors with undo. The enforced structure also keeps a large AI-written codebase from turning into arbitrary setters.
Watch out for: Still the heaviest option here and overkill for most apps. If a tutorial shows connect or hand-written action-type constants, it predates RTK — ignore it.
Pricing: Free · MIT
Setup: npm install @reduxjs/toolkit react-redux
Rules: treat the notes above as background only. Do not assume a theme, style, layout or feature that is not already in this project — inspect the existing code first and ask me before changing visual direction.

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