Can I use this with SwiftUI ViewModels?

Yes, the skill includes patterns for combining actor-based repositories with @Observable classes for thread-safe, reactive UI updates.

Is this a replacement for Core Data or Realm?

It serves as a lightweight, developer-friendly alternative for simple model persistence, though it can also be used as a thread-safe wrapper around more complex engines.

Why use actors over traditional locks?

Actors provide compiler-enforced isolation, meaning the Swift compiler prevents you from writing code that would cause data races, unlike manual synchronization.

What version of Swift is required for this skill?

This skill leverages Swift actors and modern concurrency, which require Swift 5.5 or later.

How does this handle data integrity during app crashes?

The pattern utilizes atomic file write options to ensure that data is either written completely or not at all, preventing partial file corruption.

Swift Actor Persistence

Name: Swift Actor Persistence
Author: nbossn

bynbossn

0•

Mobile Development

Implements thread-safe data persistence in Swift using the actor model to eliminate data races and simplify local storage.

This skill provides a robust architectural pattern for Swift developers to build thread-safe persistence layers. By leveraging the actor model, it combines high-performance in-memory caching with atomic file-backed storage, ensuring data integrity without the complexity of manual locks or dispatch queues. It is particularly valuable for iOS and macOS applications requiring offline-first capabilities, providing a clean, reusable repository pattern that integrates seamlessly with modern Swift concurrency and SwiftUI's observation system.

主要功能

01Atomic file-backed persistence with JSON serialization

02High-performance O(1) in-memory caching for rapid reads

03Optimized integration with @Observable for reactive UI updates

040 GitHub stars

05Compiler-enforced thread safety using Swift Actors

06Generic implementation for any Codable and Identifiable models

使用场景

01Building offline-first iOS/macOS applications with local data caching

02Managing shared mutable state across concurrent tasks in Swift

03Migrating legacy lock-based synchronization to modern Swift concurrency

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add nbossn/claude-code-base swift-actor-persistence

For use in Claude.ai and ChatGPT

主要功能

01Atomic file-backed persistence with JSON serialization

02High-performance O(1) in-memory caching for rapid reads

03Optimized integration with @Observable for reactive UI updates

040 GitHub stars

05Compiler-enforced thread safety using Swift Actors

06Generic implementation for any Codable and Identifiable models

使用场景

01Building offline-first iOS/macOS applications with local data caching

02Managing shared mutable state across concurrent tasks in Swift

03Migrating legacy lock-based synchronization to modern Swift concurrency

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add nbossn/claude-code-base swift-actor-persistence

For use in Claude.ai and ChatGPT