general-decomposition

Refactoring a legacy codebase involves reviewing its structure to extract responsibility groups into modular units. It provides rules-based guidance to preserve interfaces and document rationale while decomposing bloated logic into cohesive, maintainable modules.

Decomposing a large legacy codebase requires extracting responsibility groups such as class definitions and self-contained algorithms into focused modules. Rules-based guidance ensures interfaces are preserved, tests are maintained, and rationale is documented throughout the modularization process.

Yes, this decomposition approach is applicable to large or legacy codebases across multiple languages. It detects bloat, excessive nesting, and DRY violations regardless of the specific programming language used in your project.

Preserving interfaces during code review involves following decomposition execution rules that maintain tests and document rationale. It ensures responsibility groups are extracted into named helpers or modules with minimal disruption to existing behavior.

You should modularize code to fix DRY violations when a review identifies repeated logic that can be extracted into named helpers. This decomposition approach targets clusters of free functions and type definitions to reduce bloat and improve maintainability.