React 19 Reference

Use this skill when a user is asking about React 19-era hooks, RSC boundaries, compiler/runtime behavior, or related React rules and wants practical guidance on when to use something, when not to use it, and what caveats matter in real code.

This skill is designed as a consolidated reference. Keep the top-level guidance here brief, and add topic-specific material under references/ as the collection grows.

This skill infers what it can do from the available project context and config. .env.example defines the minimum config for the skill. For this skill, no credentials or required environment variables are needed.

Quick Usage (Already Configured)

Show the consolidation workflow

bash scripts/show-hooks-workflow.sh

Ask for help directly

• “Should I use useActionState here?”
• “What’s the difference between useActionState and useReducer?”
• “Which React 19 hook fits this form flow?”