Core Data helps you save and load data in your iPhone or Mac apps. It stores information like user settings, trips, or notes so they don't disappear when you close the app. You can use it to build lists that update automatically or handle many records at once.
This skill is for developers who work with Xcode and Swift. It covers setting up your data store, writing and reading data safely across different parts of your app, and moving to new data formats without losing anything. It also explains how to test that everything works correctly.
If your app already uses a newer system called SwiftData, use a different skill. This one focuses on the older but still widely used Core Data framework.
Global
mkdir -p ~/.claude/skills/core-dataProject
mkdir -p .claude/skills/core-dataSource Repository
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