Expo UI Jetpack Compose Skill for Codex
`@expo/ui/jetpack-compose` package lets you use Jetpack Compose Views and modifiers in your app.
Install
one command, takes just this skill from the repositorynpx skills add https://github.com/openai/plugins --skill expo-ui-jetpack-composeWhat comes with it
353 bytes besides the instructionThe instruction itself
3 sections, as written by the author> The instructions in this skill apply to SDK 55 only. For other SDK versions, refer to the Expo UI Jetpack Compose docs for that version for the most accurate information.
Installation
npx expo install @expo/ui
A native rebuild is required after installation (npx expo run:android).
Instructions
- Expo UI's API mirrors Jetpack Compose's API. Use Jetpack Compose and Material Design 3 knowledge to decide which components or modifiers to use. If you need deeper Jetpack Compose or Material 3 guidance (e.g. which component to pick, layout patterns, theming), consult current Jetpack Compose and Material Design 3 documentation before implementing.
- Components are imported from
@expo/ui/jetpack-compose, modifiers from@expo/ui/jetpack-compose/modifiers. - Always read the
.d.tstype files to confirm the exact API before using a component or modifier. Runnode -e "console.log(path.dirname(require.resolve('@expo/ui/jetpack-compose')))"to locate the package, then read the relevant{ComponentName}/index.d.tsfiles. This is the most reliable source of truth. - When about to use a component, fetch its docs to confirm the API - https://docs.expo.dev/versions/v55.0.0/sdk/ui/jetpack-compose/{component-name}/index.md
- When unsure about a modifier's API, refer to the docs - https://docs.expo.dev/versions/v55.0.0/sdk/ui/jetpack-compose/modifiers/index.md
- Every Jetpack Compose tree must be wrapped in
Host. Use<Host matchContents>for intrinsic sizing, or<Host style={{ flex: 1 }}>when you need explicit size (e.g. as a parent ofLazyColumn). Example:
import { Host, Column, Button, Text } from "@expo/ui/jetpack-compose";
import { fillMaxWidth, paddingAll } from "@expo/ui/jetpack-compose/modifiers";
<Host matchContents>
<Column verticalArrangement={{ spacedBy: 8 }} modifiers={[fillMaxWidth(), paddingAll(16)]}>
<Text style={{ typography: "titleLarge" }}>Hello</Text>
<Button onPress={() => alert("Pressed!")}>Press me</Button>
</Column>
</Host>;
Key Components
- LazyColumn — Use instead of react-native
ScrollView/FlatListfor scrollable lists. Wrap in<Host style={{ flex: 1 }}>. - Icon — Use
<Icon source={require('./icon.xml')} size={24} />with Android XML vector drawables. To get icons: go to Material Symbols, select an icon, choose the Android platform, and download the XML vector drawable. Save these as.xmlfiles in your project'sassets/directory (e.g.assets/icons/wifi.xml). Metro bundles.xmlassets automatically — no metro config changes needed.
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How to use it
Take openai/expo-ui-jetpack-compose from the repository into ~/.claude/skills for personal
use, or into .claude/skills inside a project.
The agent identifies a skill by the name field in its header. Two skills with the
same name cannot sit side by side — one of them will be ignored.
The instructions reference npx.
Without those the skill loads but fails at the first command.