marionette_flutter: set up an app

Marionette has two halves: marionette_flutter, the package in the app, which registers a VM service extension per action (ext.flutter.marionette.*), and the bridge the agent calls, marionette_mcp (MCP tools) or marionette_cli (shell commands). This skill prepares the app for either bridge and keeps the versions aligned. Driving the app is the job of marionette-flutter-drive-app.

Add the binding

connect (or any CLI command) only works if the target app initialized MarionetteBinding. Check main.dart (or ask) before changing anything — if the binding is already there and the agent can see the app's widgets, the app is ready.

flutter pub add marionette_flutter