solid-swift

Enforce SOLID design principles in Swift 6 and SwiftUI applications.

22|3|Updated Jan 10, 2026
One-click install
npx skills add https://github.com/fusengine/agents --skill solid-swift
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: solid-swift
Source: https://github.com/fusengine/agents/tree/main/plugins/swift-apple-expert/skills/solid-swift
Command: npx skills add https://github.com/fusengine/agents --skill solid-swift

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill enforces SOLID design principles in Swift 6 and SwiftUI development, ensuring code maintainability, scalability, and testability by adhering to strict architectural guidelines and best practices.

Core Features & Use Cases

  • Architecture Enforcement: Enforces modular feature-based architecture, file size limits, and protocol separation.
  • SOLID Principle Adherence: Guides developers on applying Single Responsibility, Open/Closed, Liskov Substitution, Interface Segregation, and Dependency Inversion principles.
  • Use Case: When building a new feature for an iOS app, use this Skill to ensure all Views, ViewModels, and Services are structured correctly, adhere to line limits, and use protocols for dependencies, leading to cleaner, more manageable code.

Quick Start

Apply SOLID principles to the Swift codebase by following the architectural guidelines and critical rules outlined in the documentation.

Frequently Asked Questions about solid-swift

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

FAQPage Schema
How do I enforce SOLID principles in SwiftUI applications?

To enforce SOLID principles in SwiftUI, apply modular feature-based architecture separating Views, ViewModels, and Services. Use protocol-oriented programming for dependencies to ensure code maintainability, testability, and scalability across your iOS app.

What's the best way to structure Swift 6 code for maintainability?

The best way to structure Swift 6 code for maintainability is adopting modular feature-based architecture with strict file size limits. Separating protocols and using actors for concurrency ensures your codebase remains scalable and testable.

How do I apply protocol-oriented programming to separate dependencies in Swift?

Apply protocol-oriented programming by defining separate protocols for each dependency, adhering to the Interface Segregation principle. This allows ViewModels and Services to depend on abstractions rather than concrete implementations, improving testability.

Does this approach require understanding of Swift concurrency and actors?

Yes, applying these architectural guidelines requires understanding of Swift concurrency and actors. The Skill enforces strict adherence to Swift 6 best practices, ensuring modular components handle concurrency safely and maintain scalability.

When do I need modular feature-based architecture for iOS development?

You need modular feature-based architecture for iOS development when building new features that require high code maintainability and testability. It enforces line limits and protocol separation, preventing monolithic file structures in Swift 6.

Why does my SwiftUI code become difficult to test and scale?

Your SwiftUI code becomes difficult to test and scale when Views, ViewModels, and Services are not structured correctly. Violating SOLID principles and lacking protocol separation creates tight coupling, making modular architecture and maintainability hard to achieve.