codebase-architecture

To improve testability in a tightly-coupled codebase, you identify architectural friction and propose boundary-based refactors to deepen shallow modules. This clarifies unclear interfaces and establishes bounded dependencies, enabling robust testing and safer structural consolidation.

A shallow module in software architecture is a component with unclear interfaces and tightly-coupled dependencies that creates friction. Deepening these modules involves restructuring boundaries to isolate functionality, which directly boosts testability and AI-navigability across large codebases.

You prepare a refactoring RFC by categorizing dependencies and analyzing testing implications for proposed boundary changes. The process generates multiple interface designs with a recommended path, culminating in a structured workplan and an issue ticket to implement the refactor.

Analyzing codebase architecture for AI navigation without decoupling modules is difficult due to tightly-coupled friction. Surfacing boundary-based refactors to deepen shallow modules is required to establish clear interfaces, directly enabling effective AI-assisted navigation and robust testing.

The best way to identify architectural friction in a large codebase is to run an exploration agent to surface tightly-coupled modules. This process highlights shallow modules and unclear interfaces, producing dependency categorizations and boundary-focused testing strategies for structured refactors.