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Optimize Apache Spark jobs with partitioning, caching, shuffle optimization, and memory tuning. Use when improving Spark performance, debugging slow jobs, or scaling data processing pipelines.
Spec-First Development with OpenSpec for Spring Boot. Align on specifications before implementation begins.
Security & Authentication Specialist - Expert in JWT, cookie-based auth, MFA, and generic security patterns
Use this skill when working with the SurrealDartB package in Dart/Flutter projects. This includes creating embedded SurrealDB databases, performing CRUD operations, managing schemas with code generati…
Expert guidance on Swift 6.2 Approachable Concurrency for iOS 26+. Use when working with async/await, Tasks, actors, MainActor, Sendable, isolation domains, migrating to Swift 6, fixing concurrency co…
Deep dive into Swift's async/await runtime, Sendable enforcement, actors, and migration strategies.
Swift 6.x language best practices, macros, project setup, and modern patterns. Use when user asks about Swift syntax, Package.swift configuration, project structure, macros like @Observable/@Model/@Ma…
Write UserDefaults to SwiftData migration logic for Leavn app with data preservation, rollback, and validation
Vitest-based test writing with mocking strategies for Remotion and AWS services. Use this when creating test files (__tests__/*.test.ts), writing unit tests for components or server logic, mocking ext…
Database expert - query optimization, schema design
Gerenciamento de Estado Flutter. Use when managing application state.
Comprehensive analysis of Swift 6 ownership, concurrency safety, and systems programming foundations.
Persist data with Core Data - models, contexts, fetch requests, migrations, SwiftData
Build iOS applications - project setup, app lifecycle, Info.plist, capabilities
Automatic internationalization for Swift/SwiftUI apps. Use when writing ANY user-facing text - always localize with String Catalogs, LocalizedStringResource, and proper pluralization patterns.
SwiftData framework with @Model macro, @Query, relationships, and NATIVE iCloud sync. Use when user asks about data persistence, SwiftData, @Model, @Query, database storage, iCloud sync, or CoreData m…
CoreSpotlight for content indexing, NSUserActivity for handoff and search, and making app content discoverable. Use when user asks about Spotlight search, CoreSpotlight, NSUserActivity, content indexi…
Detection and exploitation of SQL injection vulnerabilities. Used when the target has database queries, search functions, login forms, or URL parameters. Includes techniques such as UNION, error-based…
A writing companion that helps authors develop longform narratives using the Eight-Sequence Storytelling Framework. Guides planning, generation, and evaluation with modular context loading.
Use when building, refactoring, debugging, or testing iOS/macOS features using The Composable Architecture (TCA). Covers feature structure, effects, dependencies, navigation patterns, and testing with…
Build, archive, code signing, and App Store distribution for iOS/macOS apps. Use when configuring build settings, signing, TestFlight, notarization, or CI/CD pipelines.
Use when creating demo GIFs for Swift package READMEs, recording iOS simulator videos, or setting up demo apps for SwiftUI libraries
Build macOS applications - AppKit, windows, menus, system integration, distribution
Build, review, debug, and modernize SwiftUI apps for macOS with modern patterns. Use when building SwiftUI UIs, reviewing code quality, debugging view issues, checking anti-patterns, migrating from Ap…