launch_app never seems to return control to Gemini CLI

[sethladd]

A prompt of "run this app on chrome" did correctly trigger the launch_app tool, however in Gemini CLI I never got control back and further prompts are in the queue.

Screenshot of the hanging behavior:

Note the launch_app never completes/finishes

My Flutter version:

sethladd-macbookpro:testforcraig sethladd$ flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel beta, 3.38.0-0.1.pre, on macOS 15.7.1 24G231 darwin-arm64, locale en)
[✓] Android toolchain - develop for Android devices (Android SDK version 36.1.0-rc1)
[✓] Xcode - develop for iOS and macOS (Xcode 26.0.1)
[✓] Chrome - develop for the web
[✓] Connected device (2 available)
[✓] Network resources

• No issues found!

My gemini CLI is 0.9.0, and I'm on a Mac.

My Flutter extension for Gemini CLI version:

✓ flutter (0.3.0)
 Path: /Users/sethladd/.gemini/extensions/flutter
 Source: https://github.com/gemini-cli-extensions/flutter.git (Type: github-release)
 Release tag: v0.3.0
 Enabled (User): true
 Enabled (Workspace): true
 Context files:
  /Users/sethladd/.gemini/extensions/flutter/flutter.md
 MCP servers:
  dart

Expected behavior:

after I type "run this app on chrome" and the app launches, I should be able to issue further prompts to GCLI

[sethladd]

Ah, we think it's related to dart-lang/webdev#2694

I'll try a recent build from Flutter main, maybe this behavior is fixed there.

[sethladd]

I tried flutter main, but the behavior is the same. launch_app doesn't resolve/finish.

sethladd-macbookpro:testforcraig sethladd$ flutter --version
Flutter 3.38.0-1.0.pre-158 • channel main • https://github.com/flutter/flutter.git
Framework • revision 4ddd558fab (4 hours ago) • 2025-10-20 23:41:51 +0300
Engine • hash b383a8f735098307b927f3c7ce0817ecb5eef8f8 (revision 9dff19e510) (5 hours ago) • 2025-10-20 18:56:20.000Z
Tools • Dart 3.11.0 (build 3.11.0-36.0.dev) • DevTools 2.51.0