expo-ui-jetpack-compose
`@expo/ui/jetpack-compose` package lets you use Jetpack Compose Views and modifiers in your app.
Savant verdict: Analyzed
Scanned or evaluated by Savant; not yet both passing.
Live evaluation
Not evaluated yet. Workspaces can request a live evaluation.
Safety (NVIDIA SkillSpector)
Risk score
10/100
Recommendation
CAUTION
Severity
LOW
Savant decision
Passed (low risk)
SkillSpector rated it CAUTION, but its risk score is below 20/100, so Savant's policy passes it. Its findings are still listed for review. SkillSpector 2.12.0, static analysis.
2 patterns found
- MCP Rug Pull: npx expomedium · SKILL.md:11 · npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
- MCP Rug Pull: npx expomedium · SKILL.md:14 · npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.
Structure
- 1 referenced file isn't in the packageassets/icons/wifi.xml. They may be binary, too large to catalog, or missing upstream.
- No license declaredConfirm you may reuse this skill before importing it into your repository.
SKILL.md
---
name: expo-ui-jetpack-compose
description: "`@expo/ui/jetpack-compose` package lets you use Jetpack Compose Views and modifiers in your app."
---
> 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
```bash
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.ts` type files** to confirm the exact API before using a component or modifier. Run `node -e "console.log(path.dirname(require.resolve('@expo/ui/jetpack-compose')))"` to locate the package, then read the relevant `{ComponentName}/index.d.ts` files. 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 of `LazyColumn`). Example:
```jsx
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`/`FlatList` for 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](https://fonts.google.com/icons), select an icon, choose the Android platform, and download the XML vector drawable. Save these as `.xml` files in your project's `assets/` directory (e.g. `assets/icons/wifi.xml`). Metro bundles `.xml` assets automatically — no metro config changes needed.