/flow
Use when you need to run Flow type checking, or when seeing Flow type errors in React code.
$ npx -y skills add facebook/react --skill flow --agent claude-codeHow it fires
How this skill gets triggered: by you, by Claude, or both.
- Fires itselfAuto-invocation. Claude auto-loads it when your prompt matches the work.Auto-invocation is when the right skill fires by itself at the right moment, driven by a FLOW.md router and a hook, instead of you invoking it by name. It is the difference between a skill being installed and a skill actually getting used.Read the full definition →
- You can call itInvoke it directly when you want it.
- Slash command
/flow
Context preview
The summary Claude sees to decide when to auto-load this skill.
Use when you need to run Flow type checking, or when seeing Flow type errors in React code.
SKILL.md
flow.SKILL.mdname: flow description: Use when you need to run Flow type checking, or when seeing Flow type errors in React code.
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
1. Run `yarn flow $ARGUMENTS` (use `dom-node` if no argument) 2. Report type errors with file locations 3. For comprehensive checking (slow), use `yarn flow-ci`
Common Mistakes
- **Running without a renderer** - Always specify or use default `dom-node`
- **Ignoring suppressions** - Check if `$FlowFixMe` comments are masking real issues
- **Missing type imports** - Ensure types are imported from the correct package
React is a JavaScript library for building user interfaces. Declarative: React makes it painless to create interactive UIs.
Repo: facebook/react
Other skills on react.
- /extract-errors
Use when adding new error messages to React, or seeing "unknown error code" warnings.
Open skill - /feature-flags
Use when feature flag tests fail, flags need updating, understanding @gate pragmas, debugging channel-specific test failures, or adding new flags to React.
Open skill - /fix
Use when you have lint errors, formatting issues, or before committing code to ensure it passes CI.
Open skill - /flags
Use when you need to check feature flag states, compare channels, or debug why a feature behaves differently across release channels.
Open skill - /test
Use when you need to run tests for React core. Supports source, www, stable, and experimental channels.
Open skill - /verify
Use when you want to validate changes before committing, or when you need to check all React contribution requirements.
Open skill

