Developer Tools & Repos Agent Skills for DeepSeek Harness

Use when building ANY 2D or 3D game, game prototype, or interactive simulation with SpriteKit, SceneKit, or RealityKit.

Use when working with ANY GPU rendering, Metal, OpenGL migration, shaders, frame rate, or display performance.

Build, update, and apply iOS design specifications using Apple Human Interface Guidelines (HIG) source data.

Use when designing iOS interfaces, implementing accessibility (VoiceOver, Dynamic Type), handling dark mode, ensuring adequate touch…

Design native iOS interfaces following Apple Human Interface Guidelines.

Design and implement iOS App Intents, AppEntity, EntityQuery, and App Shortcuts for Siri, Spotlight, widgets, controls, Shortcuts, and app…

Implement, refactor, or review iOS 26+ SwiftUI Liquid Glass with native `glassEffect`, `GlassEffectContainer`, button styles, availability…

Standards for String Catalogs, L10n, and Asset Management.

Implement, review, or improve localization and internationalization in iOS/macOS apps — String Catalogs (.xcstrings), generated…

Build and audit SwiftUI, UIKit, and AppKit accessibility for VoiceOver, Voice Control, Switch Control, Full Keyboard Access, Dynamic Type…

Automates the management and translation of .xcstrings localization files for Apple platform applications.

iOS memgraph leak analysis: capture, inspect, compare, and prove memory leaks with Apple's `leaks` tool, retain-cycle evidence, and…

Capture, inspect, compare, and root-cause iOS memory graph leaks using Apple's leaks and memgraph tools.

Use when implementing or debugging ANY network connection, API call, or socket.

Use when app feels slow, memory grows, battery drains, or diagnosing ANY performance issue.

Specialized skill for iOS local data persistence solutions

Build and distribute Expo development clients locally or via TestFlight

RocketSim iOS Simulator UI: inspect and control accessibility state, gestures, typing, hardware buttons, and CLI automation.

Mirror iOS Simulator runs in the Codex browser for interaction, visible proof, and hot-reloaded SwiftUI previews from importable Swift…

Debug iOS Simulator apps with XcodeBuildMCP for build, run, launch, UI inspection, interaction, screenshots, and logs; route user-visible…

Use when asking 'where should I store this data', 'should I use SwiftData or files', 'CloudKit vs iCloud Drive', 'Documents vs Caches'…