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Found 465 Skills
Write compiler and toolchain code in the style of Chris Lattner, creator of LLVM, Clang, Swift, and MLIR. Emphasizes modular compiler design, reusable infrastructure, progressive lowering, and pragmatic language evolution. Use when building compilers, language tools, or performance-critical infrastructure.
Vapor framework guardrails, patterns, and best practices for AI-assisted development. Use when working with Vapor projects, or when the user mentions Vapor. Provides Fluent ORM, async Swift, routing, middleware, and server-side Swift guidelines.
Implement, review, or improve data visualizations using Swift Charts. Use when building bar, line, area, point, pie, or donut charts; when adding chart selection, scrolling, or annotations; when plotting functions with vectorized BarPlot, LinePlot, AreaPlot, or PointPlot; when customizing axes, scales, legends, or foregroundStyle grouping; or when creating specialized visualizations like heat maps, Gantt charts, stacked/grouped bars, sparklines, or threshold lines.
Core iOS/Swift development skills. Used when writing or modifying Swift/SwiftUI/UIKit code, designing UI architecture, optimizing performance, creating components, and handling navigation. Covers Swift coding specifications, SwiftUI best practices, UIKit development, navigation architecture (Coordinator/NavigationStack), animations, component design, and performance optimization.
Read, create, update, and pick contacts using the Contacts and ContactsUI frameworks. Use when fetching contact data, saving new contacts, wrapping CNContactPickerViewController in SwiftUI, handling contact permissions, or working with CNContactStore fetch and save requests.
iOS application development guide covering UIKit, SnapKit, and SwiftUI. Includes touch targets, safe areas, navigation patterns, Dynamic Type, Dark Mode, accessibility, collection views, common UI components, and SwiftUI design guidelines. For detailed references on specific topics, see the reference files. Use when: developing iOS apps, implementing UI, reviewing iOS code, working with UIKit/SnapKit/SwiftUI layouts, building iPhone interfaces, Swift mobile development, Apple HIG compliance, iOS accessibility implementation.
Implement, review, or improve SwiftUI features using the iOS 26+ Liquid Glass API. Use when asked to adopt Liquid Glass in new SwiftUI UI, refactor an existing feature to Liquid Glass, or review Liquid Glass usage for correctness, performance, and design alignment.
Apple-authored SwiftUI and platform guidance extracted from Xcode. Helps AI agents write idiomatic, Apple-native SwiftUI with reduced hallucinations.
Use when working with SwiftData - @Model definitions, @Query in SwiftUI, @Relationship macros, ModelContext patterns, CloudKit integration, iOS 26+ features, and Swift 6 concurrency with @MainActor — Apple's native persistence framework
Use when implementing SwiftUI gestures (tap, drag, long press, magnification, rotation), composing gestures, managing gesture state, or debugging gesture conflicts - comprehensive patterns for gesture recognition, composition, accessibility, and cross-platform support
Expert quality gate decisions for iOS/tvOS: which gates matter for your project size, threshold calibration that catches bugs without blocking velocity, SwiftLint rule selection, and CI integration patterns. Use when setting up linting, configuring CI pipelines, or calibrating coverage thresholds. Trigger keywords: SwiftLint, SwiftFormat, coverage, CI, quality gate, lint, static analysis, pre-commit, threshold, warning
SwiftUI implementation patterns for building Apple-quality iOS UIs. Covers design system (colors, typography, spacing), state management, layout, view composition, navigation, components, accessibility, and animation polish. This skill should be used when writing, reviewing, or refactoring SwiftUI views, layouts, state management, navigation flows, or component selection.