patterns▌

Master RxJS in Angular for handling async operations, data streams, and reactive programming patterns.

Memory-safe programming patterns for RAII, ownership, smart pointers, and resource management across Rust, C++, and C. \n \n Covers six core memory bug categories (use-after-free, double-free, leaks, buffer overflow, dangling pointers, data races) with language-specific prevention strategies \n Provides RAII patterns in C++ with destructors, lock guards, and transactions; smart pointer guidance (unique_ptr, shared_ptr, weak_ptr) with custom deleters \n Implements Rust ownership, borrowing, lifet

Best practices and patterns for building SwiftUI views, navigation, and state management. \n \n Covers state ownership strategies (from @State and @Binding to @Observable on iOS 17+), async/await patterns with .task , and environment injection for shared dependencies \n Includes cross-cutting references for NavigationStack routing, sheet presentation, deep linking, and app-level wiring with concrete ownership rules \n Provides component-specific guidance via indexed references, with anti-pattern

Comprehensive guide to building reliable, maintainable end-to-end test suites with Playwright and Cypress. \n \n Covers both Playwright and Cypress with setup, configuration, and framework-specific patterns including Page Object Model, fixtures, network mocking, and custom commands \n Addresses core E2E testing philosophy, the testing pyramid, and best practices for deterministic, independent tests using data attributes and user-behavior assertions \n Includes advanced patterns for visual regres

Navigate .NET concurrency from async/await through Channels to Akka.NET based on your specific problem. \n \n Start with async/await for I/O-bound work; escalate only when you hit a concrete limitation that simpler tools can't address cleanly \n Use Parallel.ForEachAsync for CPU-bound parallelism, Channel<T> for producer/consumer decoupling with backpressure, and Reactive Extensions for UI event composition \n Akka.NET Actors handle stateful entity management, state machines with Become() ,

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Advanced prompt engineering techniques for optimizing LLM performance, reliability, and structured outputs in production. \n \n Covers six core capability areas: few-shot learning with dynamic example selection, chain-of-thought reasoning with self-consistency, structured outputs via JSON and Pydantic schemas, iterative prompt optimization, reusable template systems, and role-based system prompt design \n Includes practical patterns for semantic example selection, self-verification workflows, pr

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Comprehensive testing framework for shell scripts using Bats with patterns, fixtures, and CI/CD integration. \n \n Covers core Bats concepts including test syntax, assertion patterns for exit codes and output, and setup/teardown lifecycle management \n Provides mocking and stubbing strategies for external commands, functions, and environment variables to isolate units under test \n Includes fixture management patterns, error condition testing, and shell compatibility validation across bash, sh,

Production-grade C#/.NET patterns for APIs, MCP servers, and enterprise backends with modern async, DI, and data access practices. \n \n Covers clean architecture project structure, dependency injection lifetimes, and configuration with IOptions pattern \n Async/await best practices including parallel execution, ConfigureAwait usage, and ValueTask optimization for hot paths \n Entity Framework Core and Dapper repository patterns with query optimization, multi-mapping, and performance considerati