expo-module Skill for Claude Code: Native Expo Modules

Makes Claude build Expo native modules and views in Swift, Kotlin and TypeScript. An official skill from the Expo team.

Installs: 47K; on skills.sh
Stars: 4K; on GitHub
Files: 7; besides SKILL.md
Updated: Nov 2026; last repo commit

expo-module makes Claude write native Expo modules and views with the Expo Modules API. It prefers scaffolding with create-expo-module and then replacing the sample code, rather than creating files by hand. It covers Swift, Kotlin and TypeScript, native views, shared objects, lifecycle hooks, config plugins and autolinking.

It triggers when you build or change a native module for Expo. It is one of the free, open-source framework skills in the Expo repo. SKILL.md also tells Claude to send feedback to Expo with an npx command when it finds wrong or outdated information.

Good for

React Native developers adding native camera, sensor or system features to an Expo app
Library authors wrapping an iOS or Android SDK for Expo
Developers writing config plugins that edit Info.plist or AndroidManifest.xml

Install expo-module

Claude Code

Copy this prompt.

Install the expo-module skill in Claude Code. Run this command:

claude plugin install expo@claude-plugins-official

Then check that it loaded and tell me how to use it.

2
Paste it into Claude Code. It shows the change and asks before running it.

The plugin is the README's route for Claude Code and handles updates. It installs 23 Expo skills and its .mcp.json adds the hosted Expo MCP server at mcp.expo.dev; its manifest lists no hooks. Use the skills CLI line if you want only expo-module. Pick one route, not both. Restart Claude Code after installing.

From the project README. Source.

What's in the skill

When it loads

Guide for creating and writing Expo native modules and views using the Expo Modules API (Swift, Kotlin, TypeScript). Covers module definition DSL, native views, shared objects, config plugins, lifecycle hooks, autolinking, and type system. Use when building or modifying native modules for Expo. Not for migrating an existing Swift module from the definition DSL to the Expo Modules API 2.0 macros; use expo-migrate-module (from the expo-experiments plugin) for that.

Sections in SKILL.md

When to Use
References
Quick Start
Recommended Workflow
Practical Scaffolding Rules
Core File Shapes
Module Structure Reference
expo-module.config.json
Submitting Feedback

Key facts

Author: The Expo team. The README calls these official skills from Expo
Repo: expo/skills
Installs on skills.sh: 46,960 (Nov 2, 2026)
GitHub stars: 4,005 (Nov 2, 2026)
License: MIT
Last commit: Nov 1, 2026
Files: 8 files including SKILL.md: agents/openai.yaml, 6 reference guides
Part of: The expo plugin, which holds 23 skills
skills.sh checks: Gen Agent Trust Hub pass, Socket pass, Snyk pass

What it includes

Local module for one app, or standalone module for reuse and publishing
Local modules live in modules/ (or expo.autolinking.nativeModulesDir). Standalone modules have their own package and usually an example app.
Choose the scaffold type
Constant, Function, AsyncFunction, Event, View, ViewEvent, SharedObject
These choose which code samples the scaffold generates. ViewEvent implies View.
Pick features
Scaffolds a new module with the expected layout and config
Run with an explicit slug or path, --platform and --features. A standalone scaffold installs its dependencies, builds TypeScript and may initialise a Git repo.
Runs code · npx create-expo-module@latest
Adds a platform to an existing module instead of copying native folders
Preferred over manual copying when adding Android, Apple or web support.
Runs code · create-expo-module add-platform-support
Writes the real implementation in Swift, Kotlin and TypeScript
Covers the module definition DSL, native views, shared objects and the type system.
Write · Replace the sample code
Scaffolding, module DSL, native views, lifecycle hooks, config plugins, module config
Six files in references/, loaded as needed.
Read · Reference guides
Runs npx @expo/agent-cli feedback to report errors or outdated guidance to Expo
SKILL.md says to send feedback only when specific and actionable, with as much relevant context as possible. After repeated failures it also asks for a short report with category evals.
Runs code · Submit feedback
Display name and default prompt for Codex
Sets the name Expo Module and a default prompt for scaffolding or reviewing native modules.
agents/openai.yaml

From the official docs

Permissions

Medium risk

What it can do

Read your data
Create and change things
Delete things
Read-only mode

Watch out for

It can send feedback to Expo
SKILL.md tells Claude to run an npx feedback command with as much relevant context as possible. Check the text before you approve it, and keep private code out of it. github.com
It runs @latest packages through npx
create-expo-module@latest and @expo/agent-cli@latest are fetched and run on demand, and the feedback command uses npx --yes, so npx installs the package without asking. Pin versions if you need repeatable setups. github.com
A standalone scaffold does more than write files
It installs its own dependencies, builds TypeScript and may initialise a Git repo if you are not already in one. Run it in an empty folder. github.com
The plugin route adds a hosted MCP server
The expo plugin includes .mcp.json pointing at https://mcp.expo.dev/mcp. Use the skills CLI route to avoid it. github.com

Security advisories

No published security advisories as of Nov 2, 2026.

Technical details

Turning on read-only	The skill's job is to scaffold and write module files.
Talks to	npm registry downloads through npx. Feedback sent to Expo with npx @expo/agent-cli@latest feedback. Plugin route only: the hosted Expo MCP server at mcp.expo.dev
Scopes	Runs npx create-expo-module@latest in your project Writes Swift, Kotlin, TypeScript and config files Standalone scaffolds install dependencies, build TypeScript and may initialise a Git repo

Questions

How do I install expo-module?

Use the install box above. The README gives a plugin for Claude Code and Codex, and the skills CLI for other agents. The plugin installs all 23 Expo skills and also adds the Expo MCP server, so use the skills CLI line if you want only this skill.

Is it an official Expo skill?

Yes. The repo README calls it official AI agent skills from the Expo team, and lists expo-module in the free, open-source framework group.

Does it need an API key or an Expo account?

SKILL.md names no key or account. It uses npx, so you need Node.js. The paid EAS skills in the same repo are a separate group.

Does it work in Codex or Cursor?

The README documents a Codex plugin (codex plugin add expo@openai-curated) and says to use the skills CLI for Cursor, OpenCode, GitHub Copilot, Windsurf and other agents. The skill also ships an agents/openai.yaml file for Codex.

Does expo-module work in the Claude app or Claude.ai?

The README does not describe a Claude app install for it. The skills CLI and plugin routes are for coding agents that read skill folders from disk, such as Claude Code.

Is it safe to use?

It runs npx commands that download and run packages, and scaffolding writes files into your project. SKILL.md also tells Claude to send feedback to Expo with an npx command, which can include context from your task. Read each command before approving it, and decline feedback if you do not want details shared.

expo-module vs expo-migrate-module?

Use expo-module to create or edit modules. SKILL.md says to use expo-migrate-module, from the expo-experiments plugin, to migrate an existing Swift module from the definition DSL to the Expo Modules API 2.0 macros.

Information

updated Nov 2, 2026

Repository: expo/skills
Folder: plugins/expo/skills/expo-module

expo/skills skills.sh

Sources

Docs, issue trackers and discussions this page is built from.

Show all 8

skills · github.com
expo/skills README · github.com
plugin.json · github.com
.mcp.json · github.com
commands.md · github.com
SKILL.md · github.com
create-expo-module.md · github.com
agents/openai.yaml · github.com