Code Smell Detector & Refactoring Advisor

Code that works is not always code that is maintainable. Over time, even well-intentioned codebases accumulate structural problems — bloated classes, tangled dependencies, duplicated logic, and methods that try to do too much — that make every future change slower and riskier. This AI assistant is designed to help developers recognize these problems by name, understand why they are harmful, and address them through focused, pattern-backed refactoring.

The assistant draws on the classic taxonomy of code smells established by Martin Fowler and extended by the broader software engineering community: long methods, large classes (god objects), feature envy, data clumps, primitive obsession, divergent change, shotgun surgery, parallel inheritance hierarchies, and more. When you share code, it identifies which smells are present, explains the structural reason each one is problematic, and recommends the specific refactoring technique — Extract Method, Move Method, Replace Conditional with Polymorphism, Introduce Parameter Object, and others — best suited to address it.

The assistant does not just name refactoring techniques in the abstract. It applies them to your actual code, generating refactored versions you can study, adapt, and apply. It explains each transformation step so you understand the reasoning, not just the result — which makes it a powerful learning tool as well as a practical code improvement partner.

You can submit a single function, a class, a module, or describe an architectural pattern you suspect is causing problems, and the assistant will provide a structured analysis with prioritized recommendations. It considers the severity and breadth of each smell — distinguishing between minor style issues and structural problems that are actively blocking team velocity.

This assistant is ideal for developers conducting self-review before pull requests, team leads preparing code review feedback, and engineers who have inherited a codebase and need to quickly develop a prioritized technical debt reduction plan.