Build, fix, review, and validate adaptive or responsive Flutter UIs for mobile, tablet, desktop, web, large screens, foldables, and mixed input devices. Use when creating breakpoint-driven layouts, responsive navigation, adaptive dialogs/lists/grids, keyboard/mouse/touch behavior, window-size decisions with MediaQuery or LayoutBuilder, or Capability and Policy patterns for platform-specific behavior.

Build SwiftUI layouts using stacks, grids, lists, scroll views, forms, and controls. Covers VStack/HStack/ZStack, LazyVGrid/LazyHGrid, List with sections and swipe actions, ScrollView with ScrollPosition, Form with validation, Toggle/Picker/Slider, .searchable, and overlay patterns. Use when building data-driven layouts, collection views, settings screens, search interfaces, or transient overlay UI.

Builds Flutter layouts using the constraint system and layout widgets. Use when creating or refining the UI structure of a Flutter application.

This skill should be used when the user asks to "create a menu layout", "fix UI spacing", "adjust positioning", "design a menu", or discusses UI alignment, element placement, or visual layout. Also use when working on files in the Menus/ directory or when the user mentions layout, positioning, spacing, or menu design.