Developer Tools & Repos Agent Skills for DeepSeek Harness

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 writing unit tests, adopting Swift Testing framework, making tests run faster without simulator, architecting code for…

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.

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…

Use when separating logic from SwiftUI views, choosing architecture patterns, refactoring view files, or asking 'where should this code…

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.

Reference — SwiftUI stacks, grids, outlines, and scroll enhancements through iOS 26

Use when debugging SwiftUI view updates, preview crashes, or layout issues - diagnostic decision trees to identify root causes quickly and…

SwiftUI frontend design skill — anti AI-slop rules, design direction advisor, brand asset protocol, and five-dimension review. Works with Cl

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

Reference — Complete SwiftUI adaptive layout API guide covering ViewThatFits, AnyLayout, Layout protocol, onGeometryChange…