expo-module

An agent skill by expo, from expo/skills. Tags: mobile, react-native, web.

What it does

Framework (OSS). 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.

Install

With the skills CLI, which installs into Claude Code, Codex, Cursor and other agents:

npx skills add expo/skills --skill expo-module

Or copy the skill folder into Claude Code's skills directory by hand (~/.claude/skills for every project, or .claude/skills inside one):

git clone --depth 1 https://github.com/expo/skills
cp -r skills/plugins/expo/skills/expo-module ~/.claude/skills/expo-module

Safety box score

Not rated yet. A safety box score grades what a skill and its scripts can reach on the machine of whoever installs it, across eight categories from shell execution to secrets access. Anyone can request one from this page; it is saved for everyone. How the score works.

Source

Repository

expo/skills (all skills from this repository)

Path

plugins/expo/skills/expo-module/SKILL.md

Branch

main

Collection

expo

Updated

2026-09-22

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• eas-observe — EAS service (paid). Use for anything related to EAS Observe - adding `expo-observe` to an Expo project (AppMetricsRoot/ObserveRoot HOC.
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• eas-update-insights — EAS service (paid). Check the health of published EAS Update: crash rates, install/launch counts, unique users, payload size.