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Builds and reviews SwiftUI views with modern MV architecture, state, composition, isolated previews, and migration guidance. Covers @Observable ownership, @State/@Bindable/@Environment wiring, view decomposition, ViewModifiers, environment values, .task loading, iOS 26+ handoffs, Writing Tools, clipboard availability, and performance.
Passed 20 of 22 test cases with the skill, and 15 of 22 without it.
and 3 more in the full report
5 fixed15 passed either way2 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 5 test cases the skill fixed. Same model, same prompt, with and without the skill.
I am building an iOS 26 SwiftUI view that requires rich text editing with attributed strings. What standard SwiftUI text editor component path supports binding to an AttributedString on iOS 26?
| Checked | Without skill | With skill |
|---|---|---|
| Uses TextEditor with a binding to AttributedString | Missed | Passed |
The instructions your model reads when the skill loads.
Modern SwiftUI patterns targeting iOS 26+ with Swift 6.3. Covers architecture, state management, view composition, environment wiring, async loading, design polish, and platform/share integration. Navigation, layout, animation, and Liquid Glass patterns live in dedicated sibling skills. Patterns are backward-compatible to iOS 17 unless noted.
Scope boundary: This skill covers architecture, state ownership, composition, environment wiring, async loading, and related SwiftUI app structure patterns. Detailed navigation patterns are covered in the swiftui-navigation skill, including NavigationStack, NavigationSplitView, sheets, tabs, and deep-linking patterns. Detailed layout, container, and component patterns are covered in the swiftui-layout-components skill, including stacks, grids, lists, scroll view patterns, forms, controls, search UI with .searchable, overlays, and related layout components. Detailed animation choreography is covered in swiftui-animation. Liquid Glass adoption, custom glass controls, scroll edge effects, .scrollEdgeEffectStyle, and .backgroundExtensionEffect are covered in swiftui-liquid-glass.
Load Behavior-Preserving View Refactoring for restructuring existing views and Isolated Preview Construction for fixture and dependency patterns.
Default to MV -- views are lightweight state expressions; models and services own business logic. Do not introduce view models unless the existing code already uses them.
Core principles:
@State, @Environment, @Query, .task, and .onChange for orchestration@Environment; keep views small and composabletest cases passed, vs 15 / 22 without
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