flow

react/react · Agent Skill

Checks types in React code using Flow, helping to identify and fix typing errors.

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Overview

PublisherreactOrganization
Repositoryreact/react ↗
Skill folderflow
Stars249,163
Bundled files1
LicenseMIT
Last updatedJanuary 23, 2026
LinksSkill source ↗ · Repository ↗

Mozgi check

What we found in the skill files. Details come with a subscription.

Security
low risk · no obvious risks found — the full report shows the details
Compatibility
instructions only — works with most agents
Similar skills
144 similar skills found
Also with subscription

Installation

A skill is a folder with a SKILL.md file. Pick your agent and run the commands in a terminal (macOS, Linux or Git Bash on Windows) from your project root.

Copy the prompt into Claude, Codex or another assistant: it will review the skill and install it for you.

Install the “flow” skill from mozgi.io (https://mozgi.io/skills/flow/) for me.

1. Download the archive: https://mozgi.io/skills/flow/download
   If it fails, take the skill folder from the source: https://github.com/react/react/tree/main/.claude/skills/flow
2. Read SKILL.md and the other files. Check the skill is safe: no hidden commands, no sending data elsewhere, no scripts doing something other than described. If anything looks suspicious, stop and tell me.
3. Put the “flow” folder into your agent's skills folder: .claude/skills/ for Claude Code, .agents/skills/ for Codex, .cursor/skills/ for Cursor, .gemini/skills/ for Gemini CLI. Inside the project if we are in one, otherwise in the home folder (~/.claude/skills/ etc.).
4. Make sure <skills folder>/flow/SKILL.md exists.
5. Briefly tell me what this skill does and offer to try it on my task.

If you cannot do a step yourself, tell me what to click or type.

Review the source files

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Read SKILL.md and any companion files before deciding whether to install. Click a file to preview it.

SKILL.md contents

Original author text · read-only

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

Frequently asked questions

What does the flow skill do?

Checks types in React code using Flow, helping to identify and fix typing errors.

How do I install flow?

Open the “Installation” block on this page and pick your agent — Claude Code, Codex, Cursor or Gemini CLI — for ready-made commands that copy the skill folder to the right place. Or copy the prompt from the “Via assistant” tab and let the assistant review and install the skill.

Which AI models work with flow?

Skills are plain Markdown instructions (the Agent Skills format), so flow works with any agent that reads SKILL.md: Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot, OpenCode and more. The model loads the instructions only when a task matches the skill's description.

Is flow free?

The skill is published openly by react under the MIT license. The skill itself costs nothing — you only pay your AI provider for the tokens you use.

Is it safe to install skills?

A skill is a set of instructions your agent will follow, so read SKILL.md and its companion files before installing. Scripts in the skill folder only run if your agent runs them — keep an eye on what it does and do not grant unnecessary permissions.

How is a skill different from an MCP server or a plugin?

An MCP server or plugin gives the model new tools — code that runs and returns a result. A skill gives it knowledge and process: how to approach a task, which steps to follow and what good output looks like. It needs no server or API key.

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