Flutter Skills

skills/skills/dart-matcher-best-practices

To find candidates for improving matcher usage, search for suboptimal patterns:

agent-plugins/skills/dart-migrate-to-checks-package

Replace the usage of `expect` and similar functions from `package:matcher` to `package:checks` equivalents.

skills/skills/dart-modern-features

To find candidates for modernization:

skills/skills/dart-package-maintenance

Guidelines for maintaining Dart packages in alignment with Dart team best practices.

agent-plugins/skills/dart-resolve-package-conflicts

Workflow for fixing package version conflicts. Use this when `pub get` fails due to incompatible package versions.

agent-plugins/skills/dart-run-static-analysis

Execute `dart analyze` to identify warnings and errors, and use `dart fix --apply` to automatically resolve mechanical lint issues. Use during development to…

agent-plugins/skills/dart-setup-ffi-assets

Guides agents in compiling and packaging C/C++ source code into dynamic or static libraries (Code Assets) using Dart's Native Assets hook system (via…

skills/tool/dart_skills_lint/.agents/skills/dart-skills-lint-integration

How to integrate, update, and configure the dart_skills_lint validation tool within a repository. Make sure to use this skill whenever the user asks to update…

skills/tool/dart_skills_lint/skills/dart-skills-lint-setup

Use this skill when you need to set up validation for AI agent skills in a Dart project for the first time. Adds the linter as a dev_dependency, creates a…

skills/tool/dart_skills_lint/skills/dart-skills-lint-validation

Use the dart_skills_lint CLI to validate skills. Choose the appropriate workflow based on your environment:

skills/skills/dart-test-coverage

Guidelines for running and interpreting test coverage in Dart packages.

skills/skills/dart-test-fundamentals

To find candidates for improving test structure:

agent-plugins/skills/dart-use-ffigen

Guide agents to use `package:ffigen` to automatically generate FFI bindings instead of writing them manually. Use this skill when a task involves writing new…

agent-plugins/skills/dart-use-pattern-matching

Use switch expressions and pattern matching where appropriate

agent-plugins/skills/dart-use-primary-constructors

Help users write syntactically and semantically correct primary constructors in Dart, and migrate/use the new constructor syntax, empty-body semicolon syntax,…

skills/tool/dart_skills_lint/.agents/skills/definition-of-done

Mandatory checks to run before completing any task that touches md files or dart code in this repository.

flutter/.agents/skills/engine-whats-new

Generates the "what's new" release summary and diff file for changes in the Flutter engine (//engine/src/flutter) between two releases (e.g., 3.47 vs…

flutter/.agents/skills/find-release

A skill to find the lowest Dart and Flutter release containing a given commit. Use this skill whenever users ask about when a commit landed in Flutter or Dart…

skills/skills/flutter-accessibility

Implement WCAG 2 and EN 301 549 accessibility standards and adaptive layouts in Flutter apps. Enforces semantic annotations, tap target sizes (48x48 dp minimum), and text contrast ratios (4.5:1 for small text, 3:1 for large) across mobile, web, and desktop platforms Provides decision logic for web semantics initialization, interactive widget wrapping, screen-size-based layout switching, and keyboard/mouse input handling Includes focus traversal management via FocusTraversalGroup and...

skills/skills/flutter-accessibility-audit

Triggers an accessibility scan through the widget_inspector and automatically adds Semantics widgets or missing labels to the source code.

skills/skills/flutter-add-integration-test

Configures Flutter Driver for app interaction and converts MCP actions into permanent integration tests. Use when adding integration testing to a project,…

skills/skills/flutter-add-widget-preview

Adds interactive widget previews to the project using the previews.dart system. Use when creating new UI components or updating existing screens to ensure…

skills/skills/flutter-add-widget-test

Implement a component-level test using `WidgetTester` to verify UI rendering and user interactions (tapping, scrolling, entering text). Use when validating…

skills/skills/flutter-adding-home-screen-widgets

Add home screen widgets to Flutter apps for Android and iOS with native UI and shared data synchronization. Flutter communicates with native widgets via shared local storage (UserDefaults on iOS, SharedPreferences on Android) using the home_widget package; data flows from Flutter writes to native widget reads on OS trigger. iOS implementation uses Xcode, SwiftUI, and Widget Extension targets with App Groups capability; Android uses Android Studio with AppWidgetProvider, XML layouts, and...

skills/skills/flutter-animating-apps

Visual feedback, transitions, and physics-based motion for Flutter apps using the Animation framework. Four animation strategies: implicit animations for simple property changes, explicit animations with playback control, Hero transitions for shared elements between routes, and physics-based animations for gesture-driven natural motion Core typed Animation system with AnimationController , Tween , and Curve classes; always dispose controllers to prevent memory leaks Staggered animations...

skills/skills/flutter-animation

Select and implement the optimal Flutter animation strategy for your UI requirement. Includes a decision tree to choose between implicit animations, explicit tweens, physics-based motion, hero transitions, staggered sequences, and page route transitions Provides complete code examples for each animation type, from simple AnimatedContainer to complex staggered multi-tween setups Enforces strict memory management with mandatory AnimationController disposal and performance best practices using...

skills/skills/flutter-app-size

Measure and optimize Flutter app bundle, APK, or IPA size with platform-specific analysis and reduction strategies. Supports Android (APK/AppBundle), iOS (IPA), and desktop platforms (Linux, macOS, Windows) with platform-specific measurement workflows Generates code size analysis JSON files via flutter build --analyze-size and integrates with Dart DevTools App Size Tool for component breakdown visualization Implements size reduction through debug info splitting, asset compression, and...

skills/skills/flutter-apply-architecture-best-practices

Architects a Flutter application using the recommended layered approach (UI, Logic, Data). Use when structuring a new project or refactoring for scalability.

skills/skills/flutter-architecting-apps

Layered architecture framework for scalable Flutter apps with strict separation of concerns. Enforces three-layer structure (UI, Logic, Data) with unidirectional data flow and a single source of truth in the Data layer UI layer contains lean Views and ViewModels that transform domain models into presentation state; Logic layer (optional) handles complex business orchestration; Data layer divides strictly into stateless Services and caching Repositories Provides step-by-step feature...

skills/skills/flutter-architecture

MVVM architecture for Flutter apps with unidirectional data flow and strict layer separation. Implements three-layer architecture: Data Layer (Services and Repositories), Domain Layer (UseCases for complex logic), and UI Layer (ViewModels and Views) Uses provider for dependency injection and ListenableBuilder for reactive UI updates with the Command pattern for user interactions Enforces unidirectional data flow: data flows down from Repositories to ViewModels to Views; events flow up...