Flow
facebook/reactOfficial
This runs Flow type checking on React codebases, with support for different rendering environments like DOM, browser-specific code, React Native, and Fabric. You'll mostly use the default dom-node renderer, but it's nice that you can target native platforms when needed. The skill reminds you to always specify a renderer and watch for suppressed errors hiding behind FlowFixMe comments, which is honestly good advice since those can pile up and mask real issues. If you're working on a React project that uses Flow instead of TypeScript, this gives you a structured way to run type checks without having to remember which renderer flag to pass.
- installs
- 987
- GitHub stars
- 246.5K
- last updated
- Jul 14, 2026
Install
$ npx -y skills add facebook/react --skill flow --agent claude-codeInstalls into .claude/skills of the current project.
Files
Flow Type Checking
Arguments:
- $ARGUMENTS: Renderer to check (default: dom-node)
Renderers
| Renderer | When to Use |
|---|---|
dom-node | Default, recommended for most changes |
dom-browser | Browser-specific DOM code |
native | React Native |
fabric | React Native Fabric |
Instructions
- Run
yarn flow $ARGUMENTS(usedom-nodeif no argument) - Report type errors with file locations
- For comprehensive checking (slow), use
yarn flow-ci
Common Mistakes
- Running without a renderer - Always specify or use default
dom-node - Ignoring suppressions - Check if
$FlowFixMecomments are masking real issues - Missing type imports - Ensure types are imported from the correct package
Sponsors
Details
- Repository
- github.com/facebook/react
- Category
- Frontend Development
