serve-sim-placeholder-assets

by expo

Audit and update serve-sim's Device Hub-style simulator placeholder assets from local Xcode/CoreTypes resources. Use after installing a new Xcode or macOS…

npx skills add https://github.com/expo/serve-sim --skill serve-sim-placeholder-assets

serve-sim Placeholder Assets

Use this project-scoped skill when updating the not-running device preview images in this repo.

Workflow

  1. Read references/device-placeholder-assets.md.

  2. Run the audit script from the repo root:

    node .codex/skills/serve-sim-placeholder-assets/scripts/audit-placeholder-assets.mjs --out tmp/device-placeholder-assets
    
  3. Keep the public skills/serve-sim skill focused on end-user CLI usage; do not add this internal asset-maintenance workflow there.

  4. Update app code/tests only after reviewing the audit output for exact, fallback, or missing mappings.

More skills from expo

expo-observe
expo
Use for anything related to EAS Observe — adding `expo-observe` to an Expo project (AppMetricsRoot/ObserveRoot HOC, markInteractive, the useObserve hook, the…
upgrading-expo
expo
Structured guidance for upgrading Expo SDK versions and resolving dependency conflicts. Provides step-by-step upgrade process including diagnostics, cache clearing, and prebuild workflows for native changes Covers breaking changes across SDK 53–55, including React 19 migration, New Architecture defaults, React Compiler setup, and native module updates (tabs, audio, video) Includes deprecation map for packages like expo-av, expo-permissions, and AsyncStorage with replacement recommendations...
expo-upgrade
expo
Framework (OSS). Guidelines for upgrading Expo SDK versions and fixing dependency issues
apidevelopmenttesting
expo-data-fetching
expo
Framework (OSS). Use when implementing or debugging ANY network request, API call, or data fetching. Covers fetch API, React Query, SWR, error handling, caching, offline support, and Expo Router data loaders (`useLoaderData`).
expo-ui-swift-ui
expo
`@expo/ui/swift-ui` package lets you use SwiftUI Views and modifiers in your app.
serve-sim
expo
Control and stream a running iOS, iPad, or Apple Watch Simulator with npx serve-sim. Use for simulator preview, taps, gestures, hardware buttons, rotation,…
add-app-clip
expo
Add an iOS App Clip target to an Expo app. Use when the user mentions App Clip, AASA, apple-app-site-association, appclips, smart app banner, or wants to ship…
building-native-ui
expo
Complete guide for building native Expo apps with routing, styling, components, and platform conventions. Covers Expo Router fundamentals, native tabs, stack navigation, modals, and form sheets with detailed route structure conventions Includes styling rules aligned with Apple Human Interface Guidelines: flexbox layouts, safe area handling, animations, shadows via CSS boxShadow , and responsive design patterns Documents library preferences (expo-image for SF Symbols, expo-audio, expo-video,...