Agent skills for Gemini CLI

Implement Swift Codable models for JSON and property-list encoding and decoding with JSONDecoder, JSONEncoder, CodingKeys, and custom…

Use for a retrospective audit of a Swift codebase or target to identify prioritized correctness, architecture, modernization, safety, and…

Streamlines iOS application development by implementing the Composable Architecture pattern for robust state management and modular design.

Resolve Swift concurrency compiler errors, adopt approachable concurrency (SE-0466), and write data-race-safe async code.

Diagnose a Swift / Xcode Cloud / TestFlight failure from a pasted red build log, an ITMS App Store rejection email, or a bare error code.

Install and configure Swift programming language on Debian Linux for server-side development.

Expert guidance on Swift library and framework design.

Guide ordinary build, run, manifest, dependency, resource, Metal-packaging, and Release-versus-Debug work in existing Swift Package…

Use when the user mentions Swift performance audit, code optimization, or performance review.

Use when the task claims a latency, throughput, allocation, memory, startup, compilation, or energy improvement, or when optimizing hot…

Implements protocol-based dependency injection to create testable, decoupled Swift code for file systems, networks, and APIs.

Use when working with iOS/macOS Keychain Services (SecItem queries, kSecClass, OSStatus errors), biometric authentication (LAContext, Face…

When to activate: SwiftData, @Model, @Query, ModelContainer, ModelContext, relationships, migrations in SwiftData

Match UI/UX interaction needs to proven SwiftUI animation patterns from curated open-source catalogs.

Use when SwiftUI view debugging requires systematic investigation - view updates not working after basic troubleshooting, intermittent UI…

Build SwiftUI layouts using stacks, grids, lists, scroll views, forms, and controls.

Implement SwiftUI navigation patterns including NavigationStack, NavigationSplitView, sheet presentation, tab-based navigation, and deep…

Diagnose SwiftUI rendering and update costs from code or profiles when scrolling janks, CPU or memory spikes, views update excessively…

Reviews SwiftUI code for best practices on modern APIs, maintainability, and performance.

Bridges UIKit and SwiftUI with UIViewRepresentable, UIViewControllerRepresentable, UIHostingController, UIHostingConfiguration…

Switch to expert role for specialized analysis.