agent-device

agent-device

CLI to control iOS and Android devices for AI agents.

This project mirrors the spirit of agent-browser, but targets iOS simulators/devices and Android emulators/devices.

Current scope (v1)

• Platforms: iOS (simulator + limited device support) and Android (emulator + device).
• Core commands: open, press, long-press, focus, type, fill, scroll, scrollintoview, screenshot, close.
• Inspection commands: snapshot (accessibility tree).
• Device tooling: adb (Android), simctl/devicectl (iOS via Xcode).
• Minimal dependencies; TypeScript executed directly on Node 22+ (no build step).

Install

npm install -g agent-device

Or use it without installing:

npx agent-device open SampleApp

Usage

agent-device <command> [args] [--json]

Examples:

agent-device open SampleApp
agent-device snapshot
agent-device click @e7
agent-device type "hello"
agent-device screenshot --out ./screenshot.png
agent-device close SampleApp

Best practice: run snapshot immediately before interactions to avoid stale coordinates if the Simulator window moves or UI changes. When interacting with UI elements from a snapshot, prefer refs (e.g. click @e7) over raw coordinates. Refs are stable across runs and avoid coordinate drift.

iOS snapshots:

• Default backend is ax (fast). It requires enabling Accessibility for the terminal app in System Settings.
• If AX is not available, use --backend xctest explicitly.

Flags:

• --platform ios|android
• --device <name>
• --udid <udid> (iOS)
• --serial <serial> (Android)
• --out <path> (screenshot)
• --session <name>
• --verbose for daemon and runner logs
• --json for structured output
• --backend ax|xctest (snapshot only; defaults to ax on iOS)
• open without args boots/activates the target device/simulator without launching an app.

Sessions:

• open starts a session.
• All interaction commands require an open session.
• close stops the session and releases device resources. Pass an app to close it explicitly, or omit to just close the session.
• Use --session <name> to manage multiple sessions.
• Session logs are written to ~/.agent-device/sessions/<session>-<timestamp>.ad.

Snapshot defaults to the AX backend on iOS simulators and falls back to XCTest if AX is unavailable.

App resolution

• Bundle/package identifiers are accepted directly (e.g., com.apple.Preferences).
• Human-readable names are resolved when possible (e.g., Settings).
• Built-in aliases include Settings for both platforms.

iOS notes

• Input commands (press, type, scroll, etc.) are supported only on simulators in v1.
• Support depends on your Xcode version; the CLI reports UNSUPPORTED_OPERATION if simctl io lacks input operations.

Testing

pnpm test

Build

pnpm build

Environment selectors:

• ANDROID_DEVICE=Pixel_9_Pro_XL or ANDROID_SERIAL=emulator-5554
• IOS_DEVICE="iPhone 17 Pro" or IOS_UDID=<udid>

Test screenshots are written to:

• test/screenshots/android-settings.png
• test/screenshots/ios-settings.png

Contributing

See CONTRIBUTING.md.

Made at Callstack

agent-device is an open source project and will always remain free to use. Callstack is a group of React and React Native geeks. Contact us at [e-mail] if you need any help with these technologies or just want to say hi.