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axiom-swiftdata

Guide SwiftData persistence with @Model, @Query, and CloudKit integration.

61|3|Updated Feb 14, 2026
Search Tags:#data modeling#persistence#swiftui#ios development#swiftdata#cloudkit
One-click install
npx skills add https://github.com/joelhooks/joelclaw --skill axiom-swiftdata-joelhooks
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: axiom-swiftdata
Source: https://github.com/joelhooks/joelclaw/tree/main/.agents/skills/axiom-swiftdata
Command: npx skills add https://github.com/joelhooks/joelclaw --skill axiom-swiftdata-joelhooks

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill helps developers effectively use SwiftData, Apple's native persistence framework, for managing data in iOS applications, ensuring efficient data storage, retrieval, and synchronization.

Core Features & Use Cases

  • Data Modeling: Define @Model classes with relationships and attributes.
  • Querying: Implement declarative @Query for dynamic data fetching in SwiftUI.
  • CloudKit Integration: Set up seamless data synchronization across devices using CloudKit.
  • Use Case: You need to build a note-taking app where notes are organized into folders and sync across the user's devices. This Skill guides you through setting up the SwiftData models, relationships, and CloudKit synchronization.

Quick Start

Use the axiom-swiftdata skill to define a basic @Model for a 'Note' with 'title' and 'content' properties.

Frequently Asked Questions about axiom-swiftdata

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

FAQPage Schema
How do I define data models with relationships in SwiftData?▼

SwiftData data modeling uses the @Model macro to define classes and the @Relationship macro to configure connections between entities. This allows you to establish persistent structures with complex attributes and linked data for native iOS applications.

Can I sync SwiftData with CloudKit across multiple Apple devices?▼

Yes, SwiftData supports CloudKit integration for seamless data synchronization. You can configure your persistent storage to automatically sync data across a user's iCloud-connected devices for a unified iOS experience.

How do I fetch and display SwiftData records in SwiftUI?▼

You fetch SwiftData records in SwiftUI using the declarative @Query property wrapper. It dynamically retrieves and updates data within your views, ensuring your interface reflects current persistent storage without manual fetch requests.

What is the best way to migrate from Core Data to SwiftData?▼

Migrating from Core Data to SwiftData involves mapping your existing persistent schemas to new @Model definitions. This Skill provides guidance on transitioning your data layer while maintaining data integrity and leveraging native iOS concurrency.

Does SwiftData work with Swift concurrency and @MainActor?▼

Yes, SwiftData is designed to work with Swift concurrency, utilizing @MainActor for safe ModelContext operations. This ensures thread-safe data access and prevents concurrency issues when managing persistent data in modern iOS applications.

What are the limitations of using SwiftData for iOS persistence?▼

SwiftData requires iOS 17 or later and has specific constraints when integrating with CloudKit, such as limited support for unique constraints. Understanding these limitations helps determine if it suits your application's data modeling and synchronization scale.

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