codebase-design

Design deep modules with small interfaces and clean seams for complex codebases.

Updated May 28, 2026

Search Tags:#refactoring #interface design #adapters #seams #deep modules #codebase design

Ready to run

npx skills add https://github.com/haryelramalho/skills --skill codebase-design-haryelramalho

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: codebase-design
Source: https://github.com/haryelramalho/skills/tree/main/skills/community/codebase-design
Command: npx skills add https://github.com/haryelramalho/skills --skill codebase-design-haryelramalho

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill helps you reshape complex code into deep modules with small, clear interfaces, so callers learn less while getting more leverage.

Core Features & Use Cases

Deep Module Design: Clarify what belongs behind a seam and what the caller should actually know.
Interface Redesign: Compare alternative module shapes when a current interface is too wide, leaky, or hard to test.
Refactoring Guidance: Decide where adapters, ports, and internal seams should live during architecture changes.
Use Case: A team wants to simplify a branch review workflow service, and this Skill helps them choose a smaller interface, isolate dependencies, and improve testability without spreading complexity to callers.

Quick Start

Use the codebase-design skill to analyze the current module and propose a cleaner interface with a better seam.

Frequently Asked Questions about codebase-design

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

What is a deep module in codebase design and how does it improve software architecture?▼

A deep module in codebase design hides maximum implementation complexity behind a minimal interface. This structure prevents callers from learning excessive internal details while still getting full functional leverage.

How do I design clean seams for refactoring a complex codebase?▼

Designing clean seams for refactoring involves defining narrow boundaries where dependencies are isolated. You place adapters and ports at these seams to ensure callers interact only with a simplified, testable interface.

What is the best way to reduce interface leakage when redesigning module boundaries?▼

The best way to reduce interface leakage is to evaluate what the caller truly needs and hide unnecessary internal dependencies. You reshape the module to expose only essential functions through a smaller, deeper interface.

When do I need adapters and ports during interface redesign?▼

You need adapters and ports during interface redesign when isolating external dependencies at architectural seams. They allow you to swap underlying implementations without forcing callers to update their interaction logic.

Does refactoring for deep modules help with testability in complex codebases?▼

Refactoring for deep modules directly improves testability by isolating dependencies behind clean seams. You can inject test doubles through small interfaces without exposing internal module complexity to your test suites.

Why does my current interface force callers to learn too much implementation logic?▼

Your interface forces callers to learn implementation logic because it is shallow and leaks internal details. You must deepen the module by pushing complexity behind a seam and shrinking the exposed interface.