Individual skill
expo-module
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.
plugins/expo/skills/expo-module/SKILL.md
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SKILL.mdcore · 6,535 bytesSKILL.mdcore · 6,535 bytesagents/openai.yamlasset · 367 bytesreferences/config-plugin.mddoc · 2,040 bytesreferences/create-expo-module.mddoc · 10,075 bytesreferences/lifecycle.mddoc · 3,763 bytesreferences/module-config.mddoc · 1,762 bytesreferences/native-module.mddoc · 5,869 bytesreferences/native-view.mddoc · 3,590 bytes
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# Writing Expo Modules
Complete reference for building native modules and views using the Expo Modules API. Covers Swift (iOS), Kotlin (Android), and TypeScript.
## When to Use
- Creating a new Expo native module or native view
- Adding native functionality (camera, sensors, system APIs) to an Expo app
- Wrapping platform SDKs for React Native consumption
- Building config plugins that modify native project files
- Adding Android, Apple, or web support to an existing Expo module
- Editing `expo-module.config.json`, config plugins, or lifecycle hooks
To migrate an existing Swift module from the definition DSL to the Expo Modules API 2.0 macros (`@ExpoModule`, `@JS`, `@Event`), use the `expo-migrate-module` skill (from the `expo-experiments` plugin) instead.