swift-actor-persistence

Implement actor-isolated Swift repositories with in-memory caching and atomic file writes.

86|21|Updated Feb 9, 2026

Search Tags:#concurrency #offline #swift #cache #persistence #actors #data-model

Ready to run

npx skills add https://github.com/Jamkris/everything-gemini-code --skill swift-actor-persistence-jamkris

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: swift-actor-persistence
Source: https://github.com/Jamkris/everything-gemini-code/tree/main/skills/swift-actor-persistence
Command: npx skills add https://github.com/Jamkris/everything-gemini-code --skill swift-actor-persistence-jamkris

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Thread-safe data persistence in Swift using actors—combines in-memory caching with file-backed storage to eliminate data races by design.

Core Features & Use Cases

Actor-based repository guarantees serialized access and compiler-enforced safety.
In-memory cache with durable file persistence enables fast reads and durable writes.
Suitable for local storage in iOS/macOS apps and offline-first work with synchronized backends.

Quick Start

Create a LocalRepository<T> instance and perform async operations like save, loadAll, and find to manage your data.

Frequently Asked Questions about swift-actor-persistence

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

FAQPage Schema

How do I implement thread-safe data persistence in Swift to prevent data races?▼

Thread-safe data persistence in Swift can be implemented using an actor-based repository that combines in-memory caching with file-backed storage. Actor isolation guarantees serialized access, eliminating data races by design for local iOS and macOS apps.

What is the best way to build an offline-first data store with Swift actors?▼

Building an offline-first data store with Swift actors involves using a generic LocalRepository<T: Codable & Identifiable>. It provides fast reads through in-memory caching and durable writes via atomic file persistence for synchronized backend workflows.

How do I perform atomic file writes for local iOS app storage using Swift?▼

Atomic file writes for local iOS app storage are handled by the actor-based LocalRepository. It ensures durable persistence by safely writing Codable data to disk while maintaining a synchronized in-memory cache.

Can I use Swift actors for concurrent access to a shared local repository?▼

Yes, Swift actors are designed for safe concurrent access to a shared local repository. The actor isolation model enforces serialized access to the file-backed storage and in-memory cache, preventing data races during concurrent operations.

Do I need Core Data to manage offline cache and file persistence in macOS apps?▼

You do not need Core Data to manage offline cache and file persistence in macOS apps. A generic Swift actor repository using Codable and Identifiable protocols provides in-memory caching and atomic file-backed storage without external dependencies.

How do I load data synchronously when initializing a Swift actor repository?▼

Synchronous loading during initialization of a Swift actor repository is supported by the LocalRepository<T> implementation. It loads Codable data from file-backed storage during init, ensuring the in-memory cache is ready before access.