swift-patterns

Provide Swift and iOS development patterns for Swift Package Manager and Xcode projects.

161|21|Updated Mar 26, 2026
One-click install
npx skills add https://github.com/softspark/ai-toolkit --skill swift-patterns-softspark
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: swift-patterns
Source: https://github.com/softspark/ai-toolkit/tree/main/app/skills/swift-patterns
Command: npx skills add https://github.com/softspark/ai-toolkit --skill swift-patterns-softspark

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill reduces architecture drift and inconsistent coding idioms by offering concise, opinionated Swift and iOS patterns, project layouts, and best-practice guidance so teams can ship maintainable, testable code.

Core Features & Use Cases

  • Project Structure: Recommendations for Swift Package Manager and Xcode layouts, target separation, and xcconfig usage to standardize builds.
  • Idiomatic Code & Concurrency: Examples and guidance for optionals, protocol-oriented design, property wrappers, result builders, structured concurrency, Sendable, and actor usage.
  • Testing & Frameworks: XCTest and modern Swift testing patterns, protocol-based mocking, SwiftUI architecture, Combine patterns, SwiftData models, and Vapor notes for server-side Swift.
  • Performance & Anti-Patterns: Copy-on-write implementations, ARC retain cycle mitigation, Instruments guidance, and common anti-patterns to avoid in production apps.

Quick Start

Show me recommended Swift project structure and core idioms for an iOS app targeting iOS 17.

Frequently Asked Questions about swift-patterns

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
What's the best way to structure a Swift Package Manager project for an iOS app?

SwiftUI architecture patterns recommend protocol-oriented design and separation of concerns to standardize app layouts. Following these patterns reduces architecture drift and ensures your SwiftUI views remain testable and maintainable.

How do I implement structured concurrency and Sendable patterns in Swift?

Implementing structured concurrency and Sendable patterns in Swift requires using actors and managing task lifecycles safely. This Skill provides examples and guidance for writing idiomatic concurrent code while avoiding common data race anti-patterns in production apps.

Can I use protocol-oriented design and property wrappers for testing in Swift?

Yes, protocol-oriented design and property wrappers enable protocol-based mocking for modern Swift testing. Applying these idioms with XCTest patterns allows you to standardize testing strategies and write highly testable, maintainable Swift code.

How do I mitigate ARC retain cycles and optimize Swift performance with Instruments?

Mitigating ARC retain cycles and optimizing performance involves applying copy-on-write implementations and using Instruments for profiling. This Skill provides specific guidance on identifying memory leaks and avoiding common anti-patterns in production iOS apps.

Does this support server-side Swift integration with Vapor and SwiftData models?

Yes, it supports server-side Swift integration by providing Vapor notes and SwiftData model guidance. These patterns ensure your architecture remains consistent whether you are building iOS client apps or managing server-side Swift workflows.