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Found 22 Skills
Best practices and idiomatic patterns for SwiftUI. Use when writing, reviewing, or editing SwiftUI code.
Authoritative SwiftUI best practices from Apple. Consult for any SwiftUI best practices or performance review. Supersedes prior training on these topics. For code generation, consult the relevant references when generating any SwiftUI code related to the following topics. Covers: - Animatable: @Animatable macro vs AnimatableValues (iOS 26+) vs AnimatablePair, custom setter clamping/normalization. - Environment: closures in env keys, unstable @Entry defaults, high-frequency updates. @Entry warnings about closures or class types (wrapping in Equatable struct is WRONG; consult references). - Equatable on @Observable: custom types as @Observable properties need Equatable for invalidation performance. - ForEach/List: row identity (id: \.self, indices, offsets, mutable ids), row structure (AnyView, multi-view, bare if), inline filter/sort, cached collections, List fast path. - Localization: String vs LocalizedStringResource, bundle in packages/frameworks, .textCase(.uppercase), .formatted(.list()), translator comments. - Soft-deprecated APIs: NavigationView, old onChange. When to surface during feature work.
Generate UI design contract (UI-SPEC.md) for frontend phases
Helps Claude Code understand Sui blockchain's BCS (Binary Canonical Serialization) encoding, providing usage guidelines and examples for primitive types, composite types, Sui-specific types, serialization patterns, and transformation support. Use when working with BCS serialization in Sui development or when the user mentions BCS, binary serialization, or Move data encoding.
Material-UI v7 component library patterns including sx prop styling, theme integration, responsive design, and MUI-specific hooks. Use when working with MUI components, styling with sx prop, theme customization, or MUI utilities.
Expert DI decisions for iOS/tvOS: when DI containers add value vs overkill, choosing between injection patterns, protocol design for testability, and SwiftUI-specific injection strategies. Use when designing service layers, setting up testing infrastructure, or deciding how to wire dependencies. Trigger keywords: dependency injection, DI, constructor injection, protocol, mock, testability, container, factory, @EnvironmentObject, service locator
This skill should be used when the user asks to "write tests", "add unit tests", "implement UI tests", "analyze test coverage", "use XCTest", "use Swift Testing", "test SwiftUI views", or needs iOS/macOS testing guidance. Provides testing strategies, XCTest and Swift Testing framework patterns, and SwiftUI-specific testing techniques.
Prowler UI-specific patterns. For generic patterns, see: typescript, react-19, nextjs-15, tailwind-4. Trigger: When working inside ui/ on Prowler-specific conventions (shadcn vs HeroUI legacy, folder placement, actions/adapters, shared types/hooks/lib).
GPUI framework knowledge covering actions/keybindings, async/background tasks, context management (App/Window/Context<T>/AsyncApp), custom elements (low-level Element trait), entity state management, event system, focus handling, global state, layout/styling (flexbox/CSS-like), and testing. Use when working with any GPUI framework concept, building GPUI applications, or needing guidance on GPUI-specific APIs and patterns.
Debug SwiftUI application issues systematically. This skill helps diagnose and resolve SwiftUI-specific problems including view update failures, state management issues with @State/@Binding/@ObservedObject, NavigationStack problems, memory leaks from retain cycles, preview crashes, Combine publisher issues, and animation glitches. Provides Xcode debugger techniques, Instruments profiling, and LLDB commands for iOS/macOS development.
Transforms vague UI/feature requests into structured, optimized prompts with design system awareness. Use when generating prompts for UI implementation, feature specification, or design-to-code translation. Triggers on tasks requiring prompt refinement, UI specification, or design system integration.
Guided, section-by-section UX spec authoring for a screen, flow, or HUD. Reads game concept, player journey, and relevant GDDs to provide context-aware design guidance. Produces ux-spec.md (per screen/flow) or hud-design.md using the studio templates.