creator profile · 135 approved skills · page 6 of 14
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Safe database schema evolution for production apps with user data. Core principle Migrations are immutable after shipping. Make them additive, idempotent, and thoroughly tested.
Comprehensive guide to Codable protocol conformance for JSON and PropertyList encoding/decoding in Swift 6.x.
Systematic troubleshooting for Vision framework issues: subjects not detected, missing landmarks, low confidence, performance problems, coordinate mismatches, text recognition fai…
Discipline skill for Core Location implementation decisions. Prevents common authorization mistakes, battery drain, and background location failures.
Energy issues manifest as battery drain, hot devices, and poor App Store reviews. Core principle: Measure before optimizing. Use Power Profiler to identify the dominant subsystem…
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"Widgets are not mini apps. They're glanceable views into your app's data, rendered at strategic moments and displayed by the system. Extensions run in sandboxed environments with…
Purpose: Navigation hub for ALL storage decisions — database vs files, local vs cloud, specific locations iOS Version: iOS 17+ (iOS 26+ for latest features) Context: Complete stor…
Symptom-based troubleshooting for Core Location issues.
