Core Data & SwiftData ArchitectVerified Creator

• references/
• SKILL.mdopen
• README.mdopen

name:

Core Data & SwiftData Architect

slug:

ios-coredata-architect

version:

v1.5.0

license:

MIT

author:

@apple-data-labs

categories:

iOS Developer

tags:

#coredata#swiftdata#persistence#swift#cloudkit

description:

Core Data schemas, NSPersistentCloudKitContainer, SwiftData migrations — Apple persistence done right.

// What you can do with it

• Builds SwiftData models with @Model, @Attribute(.unique), @Relationship(deleteRule:inverse:), and @Index, plus the matching Core Data entity/attribute/relationship setup and Spotlight/derived attribut
• Sets up ModelContainer / ModelConfiguration and the Core Data equivalent (NSPersistentContainer, NSManagedObjectContext, background contexts via performBackgroundTask).
• Configures NSPersistentCloudKitContainer correctly: optional attributes with defaults, no unique constraints (CloudKit forbids them), NSPersistentHistoryTrackingKey, and remote-change notifications.
• Plans migrations — lightweight inference, VersionedSchema + SchemaMigrationPlan (custom/lightweight stages) for SwiftData, and mapping models / NSMigrationManager when inference can't bridge the chang