1 rule for React
Cursor rules for React: Components, State and Effects. Structure, data, errors, security, performance, and tests. React 19.3.1, Nov 2026.
# React Rules for Cursor: Components, State and Effects
## Install
Install the native export at `.cursor/rules/react-rules.mdc`.
Copy that export, not this catalog file. Catalog fields such as `tools` and `author` are for presets.dev.
Install one skill file per name. Cursor, GitHub Copilot, Codex, Antigravity CLI, and Devin can all read `.agents/skills`, so a second copy with the same name collides.
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# React Rules for Cursor: Components, State and Effects
File-scoped Cursor rule for React. It attaches when a matching file is in context.
## Updated for React 19.3.1, Nov 2026
Do not upgrade dependencies or the framework version unless the task asks.
## Project shape
Build the tree from function components. One component owns one job. Put shared UI in the folder t...