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What you can do with Codex Mobile Dev Plugin

Mobile Dev is a Codex plugin that shows iOS and Android devices beside a Codex desktop chat, with device control, combined logs, and performance monitoring for mobile app work.

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callstackincubator/codex-mobile-dev-plugin on GitHub

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What do you want to do?

4 use cases

  • Run an Expo app in a simulator beside your chat

    Install Mobile Dev, pick a simulator, and have Codex build and run your app in view.

    View prompt
    Using the callstackincubator/codex-mobile-dev-plugin Mobile Dev plugin, build and run the Expo app at <project path> on the simulator named <device name>. Expected output: the app launches on that simulator and is visible beside the chat. Verify the device panel shows the running app before reporting success.

  • Debug an app error from combined native and JS logs

    Read iOS, Android, and Metro logs together and send a failing stack trace to Codex.

    View prompt
    Using the callstackincubator/codex-mobile-dev-plugin Mobile Dev plugin, read the logs for the foreground app on <device name> and find the error matching <error text>. Expected output: a summary of the error with its stack trace and a proposed fix in <project path>. Verify the stack trace quoted matches the log entry before editing any file.

  • Point Codex at a UI element to fix it

    Select an element on the device and attach an instruction with component details.

    View prompt
    Using the callstackincubator/codex-mobile-dev-plugin Mobile Dev plugin, take the annotated element on <device name> with the instruction <instruction text> and apply the change in <project path>. Expected output: the component source edited to match the instruction. Verify the component named in the annotation is the file that changed.

  • Record CPU, memory, and FPS and compare two runs

    Capture an interaction on a device and ask Codex to compare it with an earlier run.

    View prompt
    Using the callstackincubator/codex-mobile-dev-plugin Mobile Dev plugin, record CPU and memory on <device name> during <interaction> before and after my change in <project path>, then compare the two runs. Expected output: a comparison of CPU, memory, and Display FPS between the runs. Verify both recordings cover the same interaction length before drawing a conclusion.

How to use Codex Mobile Dev Plugin

  1. Check you have what it needs: Codex desktop on an Apple Silicon Mac; Xcode 26 or later with a simulator runtime for iOS simulators; Android SDK platform-tools and emulator, with an AVD or an authorized physical device, for Android.
  2. Open callstackincubator/codex-mobile-dev-plugin on GitHub and read the README and license.
  3. Run codex plugin marketplace add https://github.com/callstackincubator/codex-mobile-dev-plugin.git --ref release/latest
  4. Run codex plugin add mobile-dev@mobile-dev
  5. Open a new chat in Codex, then open Mobile Dev from the sidebar.
  6. Pick a device from the toolbar; selecting a stopped simulator boots it.

These steps come from our top use case, Run an Expo app in a simulator beside your chat, which also has a copy-paste agent prompt.

Codex Mobile Dev Plugin alternatives · Best AI repos for Software and DevOps

About this repo

Requirements

  • Codex desktop on an Apple Silicon Mac
  • Xcode 26 or later with a simulator runtime for iOS simulators
  • Android SDK platform-tools and emulator, with an AVD or an authorized physical device, for Android
  • GitHub read access and working Git authentication while the repository is private
  • An existing local Metro server for Metro logs and React Native inspection
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Questions about Codex Mobile Dev Plugin

What is Codex Mobile Dev Plugin?

Mobile Dev is a Codex plugin that shows iOS and Android devices beside a Codex desktop chat, with device control, combined logs, and performance monitoring for mobile app work. It is an open-source project on GitHub: https://github.com/callstackincubator/codex-mobile-dev-plugin.

Who is Codex Mobile Dev Plugin for?

Mobile app developers on an Apple Silicon Mac who use Codex desktop to build, run, and debug Expo, React Native, SwiftUI, or other native projects.

What can I do with Codex Mobile Dev Plugin?

4 use cases so far, for example: Run an Expo app in a simulator beside your chat; Debug an app error from combined native and JS logs; Point Codex at a UI element to fix it. Each has steps and a copy-paste agent prompt.

What do I need to run Codex Mobile Dev Plugin?

Codex desktop on an Apple Silicon Mac; Xcode 26 or later with a simulator runtime for iOS simulators; Android SDK platform-tools and emulator, with an AVD or an authorized physical device, for Android; GitHub read access and working Git authentication while the repository is private.

What are alternatives to Codex Mobile Dev Plugin?

Other hot AI repos in Software and DevOps: Harness2, iFixAi, Orca, Diagram Design, AI Memory.

Is Codex Mobile Dev Plugin safe to run?

Deduped does not own, audit or vouch for it. Read the README and license, run it on your own systems first and review every command before you run it.