Agent skills for Cursor

macOS-only Chrome+DevTools browser automation daemon by Peter Steinberger.

Write safe Swift code avoiding memory leaks, optional traps, and concurrency bugs.

Comprehensive analysis of Swift 6 ownership, concurrency safety, and systems programming foundations.

Thread-safe data persistence in Swift using actors — in-memory cache with file-backed storage, eliminating data races by design.

When to activate: SwiftUI animations, keyframe animations, phase animations, spring animations, UIKit animations, Core Animation layers

Build, install, and launch the app on the simulator using Grantiva.

Apply when writing or editing Swift (.swift) files.

Review and fix Swift concurrency issues such as actor isolation and Sendable violations.

Provides the complete Swift Concurrency Migration Guide.

Swift Concurrency patterns — async/await, actors, tasks, Sendable conformance.

Swift development. Use for Swift, SwiftUI, UIKit, Vapor, SPM, XCTest, Combine.

Use when debugging NavigationStack issues (not responding, unexpected pops, crashes), build failures (SPM resolution, "No such module"…

Use when a Swift feature contains policy, evaluation, parsing, validation, state transitions, or deterministic business logic that can be…

Swift 6.1–6.3 knowledge: default MainActor isolation, @concurrent, InlineArray, Span, @c interop, module selectors, Swift Testing updates.

Apply modern Swift language patterns and idioms for non-concurrency, non-SwiftUI code.

When to activate: Swift localization, String Catalogs, NSLocalizedString, pluralization, date/number formatting, multi-language apps

Use when implementing Network.framework connections (NWConnection, NetworkConnection), debugging connection failures, migrating from…

Use when swift's optional handling patterns including optional binding, chaining, nil coalescing, and modern approaches to safely working…

Use when encountering unfamiliar import statements, exploring dependency APIs, or when user asks "what's import X" or "what does X do".

Configure Swift Package Manager with platform-specific dependencies and build settings

Swift-specific idioms, tooling, and philosophy.