80,000+ Skills to Supercharge Claude
The open directory for GitHub-integrated capabilities, tools, and prompts for your AI workflows.
SQLiteData advanced patterns, @Selection column groups, single-table inheritance, recursive CTEs, database views, custom...
Use when needing thread-safe primitives for performance-critical code. Covers Mutex (iOS 18+), OSAllocatedUnfairLock (iO...
Use when app feels slow, memory grows, battery drains, or diagnosing ANY performance issue. Covers memory leaks, profili...
Use when ANY beta tester reports a crash, ANY crash appears in Organizer or App Store Connect, crash logs need symbolica...
Use when SwiftUI view debugging requires systematic investigation - view updates not working after basic troubleshooting...
Use when working with Codable protocol, JSON encoding/decoding, CodingKeys customization, enum serialization, date strat...
Use when fixing VoiceOver issues, Dynamic Type violations, color contrast failures, touch target problems, keyboard navi...
Symptom-based energy troubleshooting - decision trees for 'app at top of battery settings', 'phone gets hot', 'backgroun...
Reference — AVFoundation audio APIs, AVAudioSession categories/modes, AVAudioEngine pipelines, bit-perfect DAC output, i...
Use when working with ANY GPU rendering, Metal, OpenGL migration, shaders, frame rate, or display performance. Covers Me...
Use when setting up UI test recording in Xcode 26, enhancing recorded tests for stability, or configuring test plans for...
Use when automating Instruments profiling, running headless performance analysis, or integrating profiling into CI/CD -...
Complete energy optimization API reference - Power Profiler workflows, timer/network/location/background APIs, iOS 26 BG...
Use when app feels slow, memory grows over time, battery drains fast, or you want to profile proactively - decision tree...
Complete background task API reference - BGTaskScheduler, BGAppRefreshTask, BGProcessingTask, BGContinuedProcessingTask...
Use when implementing in-app purchases, StoreKit 2, subscriptions, or transaction handling - testing-first workflow with...
Apple platform typography reference (San Francisco fonts, text styles, Dynamic Type, tracking, leading, internationaliza...
Use when implementing SwiftUI animations, understanding VectorArithmetic, using @Animatable macro, zoom transitions, UIK...
Use when implementing widgets, Live Activities, Control Center controls, or app extensions - comprehensive API reference...
Use when asking about 'purge files', 'storage pressure', 'disk space iOS', 'isExcludedFromBackup', 'URL resource values'...
Use when adding debug-only deep links for testing, enabling simulator navigation to specific screens, or integrating wit...
Use when debugging connection timeouts, TLS handshake failures, data not arriving, connection drops, performance issues,...
Use when debugging memory leaks from blocks, blocks assigned to self or properties, network callbacks, or crashes from d...