EAS App Stores
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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
Run this in your project folder. It works with Claude Code, Cursor, Codex and dozens of other agents.
$ npx skills add expo/skills --skill eas-simulatorNeeds Node.js. Add -g to install for every project, or -a claude-code to skip the agent picker.
How to use EAS Simulator
Once it's installed, Claude reads this skill on its own whenever a request matches what it's for, so you don't have to mention it by name. In Claude Code you can also run it directly by typing /eas-simulator.
It contains no scripts, only instructions and reference files, so it can't run code on its own.
What the instructions cover
- 1When to use
- 2Cloud vs local: decide this first
- 3Prerequisites
- 4Session lifetime
- 5Check availability first
- 6The core loop (always the same)
- 7Always name the session
- 8Commands at a glance
- 9Running the user's app — pick a mode
- 10Driving the device (agent-device)
- 11When the app crashes: device logs and crash reports (iOS)
- 12Operating principles
Section headings from the skill's SKILL.md file.
What's inside · 6 files
- SKILL.md
- agents/openai.yaml
- references/controllers.md
- references/logs-and-crashes.md
- references/run-your-app.md
- references/troubleshooting.md
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