Android snapshot returns stale launcher hierarchy while foreground app is active

[ludwig-pro]

Summary

On Android, agent-device snapshot -i can return a stale Pixel Launcher hierarchy while the foreground app is active.

The command reports the target app as Page / App, but the returned nodes are from com.google.android.apps.nexuslauncher. At the same time, agent-device screenshot shows the correct foreground app UI.

Environment

• agent-device: 0.14.7
• Host: macOS arm64
• Android device: Pixel 9a
• Android: 16 / API 36
• App type: React Native / Expo development build

Reproduction

agent-device open <app.package> --platform android --relaunch
agent-device wait 10000 --platform android
agent-device snapshot -i --platform android

Observed snapshot shape:

Page: <app.package>
App: <app.package>
Snapshot: 47 visible nodes
@e1 [group] "Search"
@e2 [image] "Google app"
@e3 [text-field] "Search web and more" [editable]
@e6 [gridview] "com.google.android.apps.nexuslauncher:id/apps_list_view"
...

Android foreground state still points to the app:

adb shell dumpsys window | grep -E 'mCurrentFocus|mFocusedApp'

mCurrentFocus=Window{... u0 <app.package>/<app.package>.MainActivity}
mFocusedApp=ActivityRecord{... u0 <app.package>/.MainActivity ...}

Screenshots

1	2

Expected behavior

snapshot -i should return the foreground app hierarchy, or fail explicitly if the Android snapshot backend cannot produce a trustworthy tree. It should not report app metadata while returning stale launcher nodes.

[thymikee]

Thanks for flagging that. I tried a few things but cannot reproduce this behavior on our tester Android app. Would you mind sending a repro or simply APK so we could investigate?