Cloud Sync Diagnostics

概要

Cloud Sync Diagnostics offers a battle-tested methodology for troubleshooting common synchronization failures in iOS, iPadOS, and macOS applications. It focuses on the primary causes of sync issues—account configuration, entitlements, and connectivity—while providing technical patterns for handling CloudKit errors, SwiftData integration, and file coordination deadlocks. The skill includes step-by-step diagnostic checklists and decision trees to help developers quickly identify why data isn't moving between devices and how to implement robust error recovery in production environments.

主な機能

• Detailed decision trees for isolating CloudKit vs. iCloud Drive failures
• Advanced debugging for file coordinator deadlocks and upload/download errors
• Compatibility audits for SwiftData and CloudKit integration
• Systematic account status and entitlement verification checklists
• Implementation patterns for resolving CKError conflicts and quota issues
• 61 GitHub stars

ユースケース

• Resolving persistent CloudKit sync conflicts or quota exceeded errors in production
• Troubleshooting reports of user data failing to appear across multiple Apple devices
• Investigating 'stuck' file transfers in applications leveraging iCloud Drive storage