eas-simulator
An agent skill by expo, from expo/skills. Tags: mobile, react-native, web.
What it does
EAS service (paid). Run and control a user's app on a remote iOS/Android simulator hosted on EAS cloud. Read before running any `eas simulator:*` commands - it has the current syntax for this experimental API. Use whenever the user needs a simulator they can't run locally - 'run my app on a cloud simulator', 'use eas simulator to run/install/screenshot my app', 'I'm on Linux/Cursor and need an iOS device', 'no sim on this box / headless CI', 'let an agent click through my app and screenshot it', 'test my dev build on a remote sim with live reload', 'stream a sim to my browser' - even when they don't say 'EAS Simulator' or 'cloud'. On a host WITHOUT a local simulator (Linux, CI, cloud sandbox) it's the default; on macOS, do NOT auto-trigger for a plain 'run on the simulator' - use it only for a cloud/remote/shareable sim, an iOS version they lack, or an agent-driven session. NOT for local sims (expo run:ios, Xcode, Android Studio), EAS Build/Update, web preview, or physical devices.
Install
With the skills CLI, which installs into Claude Code, Codex, Cursor and other agents:
npx skills add expo/skills --skill eas-simulatorOr 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/eas-simulator ~/.claude/skills/eas-simulatorSafety 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/eas-simulator/SKILL.md
- Branch
- main
- Collection
- expo
- Updated
- 2026-09-22
Related skills
- eas-app-stores — EAS service (paid). Build and submit iOS and Android apps with EAS to TestFlight, the App Store, or Google Play.
- eas-hosting — EAS service (paid). Deploy Expo websites and Expo Router API routes to EAS Hosting - export the web bundle, run eas deploy for production and PR preview URLs.
- eas-observe — EAS service (paid). Use for anything related to EAS Observe - adding `expo-observe` to an Expo project (AppMetricsRoot/ObserveRoot HOC.
- eas-update — EAS service (paid). Configure and use EAS Update for over-the-air JavaScript and asset updates with expo-updates and EAS CLI.
- eas-update-insights — EAS service (paid). Check the health of published EAS Update: crash rates, install/launch counts, unique users, payload size.
- eas-workflows — EAS service (paid). Helps understand and write EAS workflow YAML files for Expo projects.