core-data-patterns
Core Data Patterns — Expert Decisions
Expert decision frameworks for Core Data choices. Claude knows NSPersistentContainer and fetch requests — this skill provides judgment calls for when Core Data fits and architecture trade-offs.
Decision Trees
Core Data vs Alternatives
What's your persistence need?
├─ Simple key-value storage
│ └─ UserDefaults or @AppStorage
│ Don't use Core Data for preferences
│
├─ Flat list of Codable objects
│ └─ Is query complexity needed?
│ ├─ NO → File-based (JSON/Plist) or SwiftData
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