SwiftData lets you save and load information in your iOS app. You create @Model classes to define your data. Then you use @Query and #Predicate to find what you need. This skill covers everything from setting up a ModelContainer to syncing with CloudKit. It works for iOS 26 and newer with Swift 6.3.
You will learn how to add @Attribute options like unique or external storage. You will handle @Relationship between models. You can even migrate from Core Data or plan schema changes. This is useful for any app that needs to keep data safe on the device.
Global
mkdir -p ~/.claude/skills/swiftdataProject
mkdir -p .claude/skills/swiftdataSource Repository
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