Flow

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.

skills.sh installs: 987
GitHub stars: 246.5K
last updated: Jul 14, 2026

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Install

$ npx -y skills add facebook/react --skill flow --agent claude-code

Installs 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 (use dom-node if 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 $FlowFixMe comments are masking real issues
Missing type imports - Ensure types are imported from the correct package

SKILL.md on GitHub

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