iCloud Drive Reference

Purpose: Comprehensive reference for file-based iCloud sync using ubiquitous containers Availability: iOS 5.0+ (basic), iOS 8.0+ (iCloud Drive), iOS 11.0+ (modern APIs) Context: File-based cloud storage, not database (use CloudKit for structured data)

When to Use This Skill

Use this skill when:

• Implementing document-based iCloud sync
• Syncing user files across devices
• Building document-based apps (like Pages, Numbers)
• Coordinating file access across processes
• Handling iCloud file conflicts
• Using NSUbiquitousKeyValueStore for preferences

NOT for: Structured data with relationships (use axiom-cloudkit-ref instead)