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React Rules for OpenAI Codex

1 rule for React

React Codex Instructions: Components, State and Effects

Codex instructions for React: Components, State and Effects. Append to AGENTS.md. Structure, security, and tests. React 19.3.1, Nov 2026.

# React Codex Instructions: Components, State and Effects ## Install Install the native export at `AGENTS.md` as an appended section, not a replacement and not a custom agent. 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. <!-- native:start --> # React Codex Instructions: Components, State and Effects Section to append to `AGENTS.md` for React. This is project guidance, not a custom agent. ## 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. O...