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Live phone

Try an Android change on a cloud phone that runs your working tree.

A live phone is a cloud Android phone that runs your app as you edit it. Use it for React Native, Expo and Flutter apps. iOS is not available.

Start

From the app’s folder, with your own Metro running for React Native:

talotrace dev --project <project id> --app <app id> --apk dev-client.apk

The first time in a folder, give the dev-client APK. After that talotrace dev remembers the project, app and build. It prints and opens the viewer, then stays in the foreground until you press Ctrl-C.

Save and see

Each save is reported as RELOADED. A change under android/, an Expo plugin change or a dependency with native code is reported NEEDS_REBUILD. In a Flutter app each change is rebuilt and installed, and --hot hot reloads each save.

Rebuild

talotrace dev rebuild --apk app-debug.apk

The rebuilt APK is installed on the same phone and the app keeps its data.

Drive and run

talotrace device screenshot --out screen.png
talotrace device tap --target "Sign in"
talotrace run <scenario id> --reset app_data

run starts a run on the live phone. It says the run was accepted, not that it passed. See Runs and verdicts.

Join and stop

talotrace dev attach joins this folder’s live phone from another terminal and leaves it running when you press Ctrl-C. talotrace dev status shows it, and talotrace dev stop stops it. If your connection drops, the phone is re-attached on the same session.

An agent holds a session through the MCP dev_session tool. See Requests and live phone and CLI commands.