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Generates SwiftData or CoreData persistence layer with optional iCloud sync.
Passed 16 of 21 test cases with the skill, and 12 of 21 without it.
and 3 more in the full report
4 fixed13 passed either way5 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 4 test cases the skill fixed. Same model, same prompt, with and without the skill.
When enabling iCloud cloud synchronization for our persistence layer, what additional dedicated files should be generated under `Sources/Persistence/CloudSync/`?
| Checked | Without skill | With skill |
|---|---|---|
| Creates CloudKitConfiguration.swift file for sync container settings | Missed | Passed |
| Creates SyncStatus.swift file for monitoring synchronization state | Missed | Passed |
The instructions your model reads when the skill loads.
Generates a production-ready persistence layer using SwiftData (iOS 17+) or CoreData with optional iCloud (CloudKit) sync.
Before generating, ALWAYS check:
# Check deployment target
cat Package.swift | grep -i "platform"
# Or check project.pbxproj
# Find existing persistence implementations
rg -l "ModelContainer|NSPersistentContainer|@Model|@Entity" --type swift
# Check for existing SwiftData models
rg "@Model" --type swift | head -5
# Check for CoreData stack
rg "NSManagedObjectContext|NSPersistentStore" --type swift | head -5
# Check existing entitlements for iCloud
cat *.entitlements 2>/dev/null | grep -i "icloud"
Use SwiftData if:
test cases passed, vs 12 / 21 without
More skills from the same source and nearby in the registry, with their headline benchmark lift.