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swift-actor-persistence

Create actor-based Swift repositories with in-memory caching and file-backed storage.

Updated Aug 27, 2026
Search Tags:#concurrency#swift#cache#persistence#file-storage#actor-model
One-click install
npx skills add https://github.com/yusufcmg/Agent_Memory_Systems --skill swift-actor-persistence-yusufcmg
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: swift-actor-persistence
Source: https://github.com/yusufcmg/Agent_Memory_Systems/tree/main/.claude/skills/swift-actor-persistence
Command: npx skills add https://github.com/yusufcmg/Agent_Memory_Systems --skill swift-actor-persistence-yusufcmg

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Thread-safe data persistence in Swift apps requires careful handling to prevent data races when multiple tasks access shared state. This Skill introduces a pattern using Swift actors to provide an in-memory cache with file-backed storage, ensuring serialized access and durable persistence.

Core Features & Use Cases

  • Actor-based LocalRepository that guarantees serialized access to cached items.
  • In-memory cache with persistent storage to disk using a simple, Codable model.
  • Suitable for offline-first apps and scenarios needing safe concurrent mutations.

Quick Start

Create a thread-safe LocalRepository for a Codable model and persist changes to a file-backed store.

Frequently Asked Questions about swift-actor-persistence

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

FAQPage Schema
How do I handle thread-safe persistence in Swift when multiple tasks access shared state?▼

Thread-safe persistence in Swift is achieved using an actor-based LocalRepository that serializes access to an in-memory cache and writes changes to file-backed storage, preventing data races during concurrent mutations.

What is the best way to build an offline-first iOS app with durable local storage?▼

Building an offline-first iOS app with durable storage is best achieved using an actor-based pattern that maintains Codable-Identifiable entities in memory and performs atomic file writes to disk for safe concurrent access.

Can I use Swift actors for file-backed caching with Codable models?▼

Yes, you can use Swift actors for file-backed caching by creating a generic actor model that enforces Codable-Identifiable constraints, combining in-memory cache with persistent disk storage.

Does this actor-based persistence pattern support synchronous initialization?▼

Yes, the actor-based persistence pattern supports synchronous initialization, allowing the LocalRepository to load Codable items from disk immediately while maintaining safe actor-isolated APIs for subsequent mutations.

How do I prevent data races in Swift when persisting shared state to disk?▼

Preventing data races when persisting shared state is accomplished by using an actor model to isolate file-backed storage operations, ensuring serialized access to the in-memory cache and atomic file writes.

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