What problem does it solve?
Building thread-safe data persistence layers in Swift traditionally requires manual synchronization with locks or dispatch queues, which are error-prone and can lead to hard-to-debug data races and crashes. This Skill eliminates that risk by leveraging Swift's built-in actor model for compile-time thread safety.
Core Features & Use Cases
- Actor-based thread-safe repository: Compiler-enforced serialized access to shared mutable state, eliminating the need for manual synchronization.
- In-memory cache + atomic file storage: Fast O(1) reads from an in-memory cache, with durable atomic writes to disk that prevent data corruption if the app crashes mid-write.
- Generic reusable design: Works with any Codable and Identifiable model type, making it suitable for iOS/macOS apps, offline-first architectures, and local data storage use cases.
- Use Case: For example, use this Skill to build a local storage layer for a fitness tracking app that stores user workout data, ensuring concurrent access from multiple parts of the app never causes data loss or corruption.
Quick Start
Use the swift-actor-persistence skill to implement a thread-safe local data repository for your Swift app's user-generated content.
