cloudkit-debugging

CloudKit sync errors stem from database state, zone configuration, change tokens, or schema mismatches. This Skill provides a guided workflow to categorize the issue—Sync, Sharing, Schema, or Performance—then traces through private/public database state, CKRecord validity, and quota usage to pinpoint the root cause and suggest remediation steps.

CKShare handling, zone management, and thread-safe operations across devices can fail due to stale change tokens, unsynced zones, schema conflicts, or quota limits. This Skill walks through CloudKit sharing workflows, CKRecord state validation, and thread-safety patterns to isolate whether the issue is in zone setup, record encoding, or share permissions.

Yes. This Skill covers performance and quota diagnostics across development and production environments. It checks CKAsset handling efficiency, zone change-token tracking, manual sync triggers, and quota consumption patterns to identify bottlenecks and recommend schema or batching adjustments.

SwiftData-to-CloudKit mappings require matching schema structure and CKRecord field types. This Skill provides best-practice checks for schema problems, common error patterns like serverRecordChanged conflicts, and actionable steps to align your model definitions with CloudKit's storage and sync requirements.

Sync failures often stem from zone state, change-token expiration, missing permissions, or inactive manual sync triggers. This Skill includes a structured debugging checklist that validates zone registration, examines change-token freshness, verifies thread-safe operations, and confirms sync initiation to restore sync flow.