eas-simulator
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.
Target: Mobile development. Automatically collected · unverified.
Excerpt from the author’s documentation
Extracted from a fixed version of SKILL.md in its original language. This is the author’s documentation; installation, compatibility and runtime results have not been verified by this site.
Read the original English text
Topics in the source
- EAS Simulator
- When to use
- Cloud vs local: decide this first
- Prerequisites
- Session lifetime
- Check availability first
- The core loop (always the same)
- Always name the session
EAS service - costs apply. Sessions count toward your account's pricing and limits and stop at their maximum duration. Stop a session with eas simulator:stop when the task is done. See https://expo.dev/pricing for current terms. EAS Simulator runs a remote iOS simulator or Android emulator on EAS infrastructure that you drive from your machine — from the CLI, from an AI agent (via agent-device), and from a browser preview. It's the unlock for environments that can't run a simulator locally (Linux boxes, cloud/background agents like Cursor Cloud), and for letting an agent verify a change on a real device instead of only reasoning about code. The simulator: commands are experimental and hidden, and need a recent eas-cli (≥ 20.3.0 as of writing) — which is why this skill runs everything via npx --yes eas-cli@latest. Flags and verbs may change; the relevant subcommand's --help output is authoritative. The frontmatter description carries the trigger phrases. In short: use this to get a user's app onto a cloud simulator and interact with it — especially from a Mac-less or cloud/sandbox agent. Not for local sims (expo run:ios, Xcode, Android Studio), store builds/signing (that's EAS Build
This is an excerpt. Refer to the complete source and its current requirements.
- Source repository
- expo/skills
- Source file
- plugins/expo/skills/eas-simulator/SKILL.md
- Fixed revision
- a9e5bd3fa00b4e61f632e43f85da73aee1942582
Sources and evidence
This record was collected automatically. Its documentation, suitability and runtime behavior have not been manually verified.
Author: Expo Skills · original repository metadata. Documentation review: Not reviewed. Last source check: 2026-11-09T14:01:42.025Z.
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