Labsco
MCP SERVER

Let an agent drive an iOS simulator, an Android emulator or device, a TV, or an Electron app — tapping, typing, profiling, reading logs and capturing network traffic.

Mobile & App Store Release
Summary
An agent that can open your app, use it, and tell you why it is slow.

Most device-control tooling stops at tapping. This one keeps going into profiling and diagnostics — Hermes and Instruments traces, network capture, the native and React component trees — so a reproduction can turn into a diagnosis in the same session.

What it is

An agentic toolkit that gives an AI assistant direct control of real app targets: iOS simulators, Android emulators and physical devices over adb, Apple TV, Android TV and Fire TV, and Electron or Chromium apps over the Chrome DevTools Protocol.

What you get
  • A full interaction toolkit matched to each platform — tapping, swiping, pinching, typing, gestures and hardware buttons on mobile; the directional remote on TV; mouse, scroll and drag on desktop and web
  • Record and replay: capture a sequence of interactions once and have the agent replay it deterministically, so manual repros and smoke tests become repeatable
  • Visual regression — diff two screenshots, or a saved baseline against a live capture, with OCR- and font-aware comparison
  • Profiling with analysis: React Native (Hermes), React DevTools, and native Xcode Instruments or Android Perfetto sessions, down to fiber renders, CPU hotspots and cross-correlated commit-versus-hang reports
  • Debugging surfaces — inspect logs, capture network traffic from both JS `fetch` and native, evaluate JS in the running app, and walk the native UIKit and React component trees
  • For Electron and Chromium: drive tabs, read and write cookies and storage, walk the DOM and inspect network over CDP
  • React Native support with no extra setup — build, launch and iterate on an RN project as with any native app
  • A CLI alongside the MCP server: `argent tools` lists what the tool-server exposes with `describe <name>` for detail, `argent run` invokes one by name, and `argent server` manages the shared tool-server
Requirements

Node.js 20.12 or later. `npx @swmansion/argent@latest init` installs the package, detects your editor and registers the MCP server; use `pnpm dlx` instead in a pnpm project where npm's devEngines check refuses to run npx. Per platform: macOS with Xcode for iOS and tvOS, Android SDK Platform Tools (`adb`) on PATH for Android, the Vega SDK for Fire TV, and nothing extra for an Electron app already launched with `--remote-debugging-port`. `init` auto-configures Claude Code, Cursor, VS Code, Windsurf, Zed, Gemini CLI, Codex CLI, Hermes, opencode and Kiro. `--local` adds it to devDependencies and writes committable MCP config so teammates get the same setup from `npm install`. On Linux, Android emulators want KVM access; without `/dev/kvm` the emulator falls back to software emulation. Argent collects opt-out telemetry, disabled with `argent telemetry disable`. Source is Apache 2.0, but the per-platform simulator-server and ax-service binaries and the iOS native devtools libraries are proprietary and licensed only for use within this project.

Setup effort

One command — npx @swmansion/argent@latest init