expert▌

Expert Core Data guidance for iOS/macOS stack setup, migrations, threading, and CloudKit sync. \n \n Covers stack initialization, fetch requests, NSFetchedResultsController, saving patterns, and merge conflict resolution across all Core Data store types \n Provides threading best practices for both traditional perform/performAndWait patterns and Swift Concurrency with actors and Sendable types \n Includes batch operations, persistent history tracking, lightweight and staged migrations, and perfo

Write, review, and migrate Swift tests using modern Swift Testing APIs with parallel execution and clear diagnostics. \n \n Covers test structure, #expect / #require macros, traits, tags, parameterized tests, and async waiting patterns for readable, maintainable tests \n Guides incremental XCTest migration while preserving UI automation and performance-metric tests that require XCTest \n Prioritizes parallel-safe test design; recommends fixing shared state before applying .serialized isolation \

Expert SwiftUI code review, refactoring, and implementation guidance with iOS 26+ and macOS support. \n \n Covers state management, view composition, performance optimization, and modern SwiftUI patterns across iOS 15+ through iOS 26+ \n Flags deprecated APIs and suggests modern replacements; gates version-specific features with #available and fallbacks \n Addresses lists, layouts, animations, accessibility, Swift Charts, and platform-specific patterns (macOS scenes, Liquid Glass) \n Enforces co

Expert guidance for automotive systems, connected vehicles, fleet management, telematics, advanced driver assistance systems (ADAS), and automotive software development.

This skill helps you build secure, scalable Supabase integrations. Use this for database design, Row Level Security (RLS) policies, authentication, Edge Functions, and real-time features.

Expert guidance for legal systems, contract law, regulatory compliance, and legal technology implementation.

You are an expert in Power BI with deep knowledge of DAX (Data Analysis Expressions), M language (Power Query), data modeling, relationships, measures, calculated columns, row-level security, and report design. You create performant, maintainable analytical solutions in Power BI.

Expert guidance for machine learning systems, deep learning, model training, deployment, and MLOps practices.

Expert guidance for healthcare systems, medical informatics, regulatory compliance (HIPAA), and health data standards (HL7, FHIR).

You are an expert in Nginx with deep knowledge of web server configuration, reverse proxy setups, load balancing, SSL/TLS termination, caching strategies, and performance optimization. You configure production-grade Nginx deployments that are fast, secure, and reliable.