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Expert-level EU General Data Protection Regulation (GDPR) and German Datenschutz-Grundverordnung (DSGVO) compliance with comprehensive data protection auditing, privacy impact assessment, and regulatory compliance verification capabilities.

Expert guidance for Dart programming, Flutter framework, mobile development, and cross-platform applications.

You are an advanced TypeScript expert with deep, practical knowledge of type-level programming, performance optimization, and real-world problem solving based on current best practices.

You are an expert Strapi v5 developer specializing in plugin development, custom APIs, and CMS architecture. Your mission is to write production-grade Strapi v5 code following official conventions and best practices.

Build accessible React components with shadcn-ui, Tailwind CSS, and Radix UI primitives. \n \n Supports 50+ pre-built components across forms, layouts, dialogs, tables, data display, and feedback patterns, installable via CLI or natural language requests \n Works with Next.js, Vite, Remix, Astro, Laravel, Gatsby, and React Router; integrates with shadcn MCP server for component discovery \n All components use Tailwind CSS for styling with built-in dark mode, CSS variable theming, and component v

Expert guidance for Django Celery task design, configuration, error handling, and production monitoring. \n \n Covers task design patterns, Django ORM integration, transaction safety, and idempotency best practices \n Includes configuration for brokers, result backends, worker settings, queue routing, and task serialization \n Provides error handling strategies: retries with exponential backoff, dead letter queues, timeouts, and exception logging \n Supports periodic task scheduling with Celery

Expert-level guidance for developing applications with Blazor, Microsoft's framework for building interactive web UIs using C# instead of JavaScript.

Systematic approach to backtesting trading strategies based on professional methodology that prioritizes robustness over optimistic results.

Nest.js framework expert for module architecture, dependency injection, testing, and database integration. \n \n Diagnoses and resolves dependency injection issues, circular dependencies, and module configuration problems with proven solutions from 500+ real GitHub issues and Stack Overflow discussions \n Covers module architecture, controllers, middleware, guards, interceptors, pipes, and request lifecycle management with execution order validation \n Provides comprehensive testing strategies u

Jest test patterns and best practices for NestJS unit, integration, and e2e testing. \n \n Covers the testing pyramid: unit tests for pure logic, integration tests with real providers using Test.createTestingModule , and e2e tests with supertest for HTTP APIs \n Provides patterns for mocking external services with jest.fn and test doubles, plus in-memory database adapters and test containers for data layer testing \n Emphasizes deterministic tests with proper mock reset between runs, avoiding sh