flutter-feature-dev

Plan and implement Flutter features using the project architecture, with tests and validation. Use when the user wants to implement a Flutter feature, build a screen, add functionality to an existing app, or create a new widget. Trigger phrases: "build Flutter feature", "implement Flutter screen", "add feature to Flutter app", "create Flutter widget", "implement this feature in Flutter", "build the [feature] screen", "add [feature] to the app", "create the [feature] page", "write the code for [feature]", "implement [feature] in Flutter", "build the auth flow", "implement the profile screen", "add search to Flutter app", "create the onboarding flow", "write the repository for", "create a provider for". Also use when the architecture is defined and the user is ready to write code, or when a feature is referenced from the product brief.