Can this skill handle complex data transformations during migration?

Yes, it provides implementation patterns for custom migration stages that allow for data cleanup, default value assignment, and complex transformations before or after schema updates.

Is it safe to use for apps with existing iCloud user data?

Absolutely. The skill includes specific strategies for iCloud compatibility, such as ensuring relationship optionality and implementing field-level merge or last-writer-wins conflict resolution.

Does it support gradual migration for large codebases?

Yes, it details a 'Coexistence Pattern' where CoreData and SwiftData can run side-by-side, allowing teams to migrate features incrementally rather than all at once.

What iOS versions are targeted by these patterns?

The patterns focus on iOS 17 and above, following the requirements for SwiftData, with recommendations optimized for the latest Xcode environments.

SwiftData Migration Assistant

Name: SwiftData Migration Assistant
Author: bluewaves-creations

bybluewaves-creations

Mobile Development

Guides developers through migrating from CoreData to SwiftData with advanced schema versioning and iCloud sync strategies.

概要

The SwiftData Migration skill provides Claude with expert-level knowledge for transitioning legacy CoreData stacks to SwiftData. It offers comprehensive implementation patterns for model auditing, coexistence strategies for gradual rollouts, and complex schema evolution using versioned migration plans. Whether you are handling a simple one-time data transfer or managing production-grade migrations with iCloud synchronization and conflict resolution, this skill ensures data integrity and adherence to Apple's latest persistence best practices for iOS 17 and beyond.

主な機能

iCloud synchronization conflict resolution strategies
0 GitHub stars
Coexistence patterns for side-by-side stack management
Production-grade batch data migration scripts and workflows
CoreData to SwiftData model mapping and audit checklists
Versioned schema definitions and multi-stage migration plans

ユースケース

Upgrading legacy iOS applications from CoreData to modern SwiftData
Resolving data consistency and sync conflicts in iCloud-enabled applications
Implementing complex schema evolution in existing SwiftData apps

概要

主な機能

iCloud synchronization conflict resolution strategies
0 GitHub stars
Coexistence patterns for side-by-side stack management
Production-grade batch data migration scripts and workflows
CoreData to SwiftData model mapping and audit checklists
Versioned schema definitions and multi-stage migration plans

ユースケース

Upgrading legacy iOS applications from CoreData to modern SwiftData
Resolving data consistency and sync conflicts in iCloud-enabled applications
Implementing complex schema evolution in existing SwiftData apps