
100 professional code refactoring prompts covering every dimension of modern refactoring: refactoring strategy and fundamentals, code smell detection, OOP refactoring patterns, functional and declarative refactoring, database query refactoring, test coverage and testability, performance optimization, legacy code modernization, architecture refactoring, and large-scale team refactoring processes. Applies techniques from Martin Fowler's Refactoring, Michael Feathers' Working Effectively with Legacy Code, and SOLID design principles. Perfect for software engineers, tech leads, and architects who want to improve code quality systematically without breaking existing functionality.