ios-swift-patterns

Guide iOS app design with MVVM, coordinator navigation, and SwiftUI performance patterns.

364|53|Updated May 9, 2026
One-click install
npx skills add https://github.com/cosmicstack-labs/mercury-agent-skills --skill ios-swift-patterns
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: ios-swift-patterns
Source: https://github.com/cosmicstack-labs/mercury-agent-skills/tree/main/categories/mobile/ios-swift-patterns
Command: npx skills add https://github.com/cosmicstack-labs/mercury-agent-skills --skill ios-swift-patterns

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill helps iOS developers avoid scattered architecture choices by providing clear, production-minded patterns for SwiftUI and UIKit projects.

Core Features & Use Cases

  • MVVM + Coordinator architecture: Separates views, stateful view models, stateless services, and navigation to improve maintainability and reuse.
  • SwiftUI performance and state guidance: Recommends list rendering optimizations and correct ownership patterns for observable state and re-render control.
  • Submission readiness checklist: Keeps apps aligned with App Store submission expectations through practical preflight steps.

Quick Start

Implement MVVM + coordinator with SwiftUI or UIKit, then review your state management and performance choices before running the App Store submission checklist.

Frequently Asked Questions about ios-swift-patterns

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

FAQPage Schema
How do I structure an iOS app using MVVM and coordinator patterns?

SwiftUI MVVM state ownership requires explicit separation of observable state and rendering control. Correct ownership patterns prevent unnecessary re-renders and ensure async/await and Combine workflows update views efficiently.

How do I optimize SwiftUI list rendering and state management performance?

Optimize SwiftUI list rendering by applying recommended performance patterns and correct observable state ownership. Explicit state and rendering practices control re-renders and suit async/await and Combine workflows effectively.

Can I use coordinator-based navigation with both SwiftUI and UIKit?

Yes, coordinator-based navigation works with both SwiftUI and UIKit. This pattern centralizes navigation flow separately from views and view models, improving maintainability and reuse across your iOS application architecture.

What's the best way to prepare an iOS app for App Store submission?

Prepare an iOS app for App Store submission by running a submission readiness checklist. This practical preflight step verifies your app aligns with App Store expectations after reviewing your architecture and state management choices.

When should I not use MVVM with coordinators for iOS development?

Avoid MVVM with coordinators if your iOS app cannot support clear separation of view, view model, services, and navigation concerns. The pattern requires explicit state practices suitable for async/await and Combine workflows to be effective.