Developer Tools & Repos Agent Skills

When to activate: Keychain, certificate pinning, encryption, biometrics, secure storage, App Transport Security in Swift

Expert in Swift and SwiftUI development for iOS, macOS, and Apple platforms

This skill should be used when the user is working with Swift or SwiftUI, asks to "write SwiftUI code", "create iOS app", "fix SwiftUI…

Use when Swift code has copying, mutation, identity, copy-on-write, large aggregates, or a struct-versus-class decision.

Use when working with SwiftData - @Model definitions, @Query in SwiftUI, @Relationship macros, ModelContext patterns, CloudKit…

Use when the user mentions SwiftData review, @Model issues, SwiftData migration safety, or SwiftData performance checking.

Reviews SwiftData code for model design, queries, concurrency, and migrations.

Use when creating SwiftData custom schema migrations with VersionedSchema and SchemaMigrationPlan - property type changes, relationship…

Use when SwiftData migrations crash, fail to preserve relationships, lose data, or work in simulator but fail on device - systematic…

Configures and enforces SwiftLint in Swift projects using build tool plugins, run scripts, and CI.

SwiftlyS2 toolkit for creating, modifying, auditing, planning, reviewing, and directly editing C#/.NET SwiftlyS2 plugins.

SwiftMesh uses a builder pattern on the Mesh class.

Diagnose SwiftPM graph overhead across dependencies, plugins, module variants, branch pins, macros, binary targets, and slow CI or local…

Use when building, fixing, or improving ANY SwiftUI UI — views, navigation, layout, animations, performance, architecture, gestures…

Use when implementing iOS 26 SwiftUI features - covers Liquid Glass design system, performance improvements, @Animatable macro, 3D spatial…

Use when implementing SwiftUI animations, understanding VectorArithmetic, using @Animatable macro, zoom transitions, UIKit/AppKit…

This skill provides comprehensive guidance for implementing advanced SwiftUI animations, transitions, matched geometry effects, and Metal…

Use when the user mentions SwiftUI architecture review, separation of concerns, testability issues, or "logic in view" problems.

Reviews SwiftUI code for view composition, state management, performance, and accessibility.

Use when implementing SwiftUI gestures (tap, drag, long press, magnification, rotation), composing gestures, managing gesture state, or…

Use when the user mentions SwiftUI layout review, adaptive layout issues, GeometryReader problems, or multi-device layout checking.