programming-swift

Guide Swift 6 concurrency and value-oriented design for Swift packages.

3|Updated Mar 14, 2026
One-click install
npx skills add https://github.com/Muvon/octomind-tap --skill programming-swift-muvon
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: programming-swift
Source: https://github.com/Muvon/octomind-tap/tree/main/skills/programming-swift
Command: npx skills add https://github.com/Muvon/octomind-tap --skill programming-swift-muvon

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill helps you build maintainable Swift codebases by guiding value-oriented design, protocol composition, and Swift 6 concurrency practices that reduce fragility and race conditions.

Core Features & Use Cases

  • Value- and type-driven architecture: Prefer struct/enum and protocol-oriented composition over reference semantics and deep inheritance to improve clarity and testability.
  • Swift 6 concurrency correctness: Use Sendable, actors, @MainActor, and structured concurrency (async let, TaskGroup) to satisfy strict concurrency checking and prevent unsafe cross-boundary sharing.
  • Pragmatic API, error, and project design: Apply throws/Result, deliberate initializer/factory design, and SPM target structuring to produce predictable, library-quality interfaces.

Quick Start

Ask for a Swift 6 architecture review of a small code snippet, and request a concrete refactor plan using value types, actors where needed, and a Swift Testing strategy for the main logic.

Frequently Asked Questions about programming-swift

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

FAQPage Schema
How do I fix Swift 6 concurrency errors and unsafe cross-boundary data sharing?

Fix Swift 6 concurrency errors by applying Sendable conformances, actor isolation, and @MainActor usage. Restructure async/await data flow to satisfy strict concurrency checking and eliminate race conditions.

What is the best way to structure a Swift Package Manager project for library-quality APIs?

Structure SPM projects by organizing targets deliberately and applying pragmatic initializer or factory design. Combine throws and Result types to produce predictable, library-quality Swift interfaces.

How do I use protocol-oriented programming and value types to improve Swift testability?

Use protocol-oriented programming by preferring struct and enum composition over deep class inheritance. This value-driven architecture improves code clarity and testability while reducing fragile reference semantics.

Does Swift Testing work with actor isolation and structured concurrency patterns?

Yes, Swift Testing integrates with actor isolation and structured concurrency patterns like async let and TaskGroup. Design tests around value types and isolated actors to validate concurrent logic safely.

When should I use actors versus value types for Swift concurrent state management?

Use value types like struct and enum for isolated data passing, and reserve actors for mutable shared state. Apply Sendable conformances to ensure safe concurrent boundaries across typical app workflows.