codebase-design

Design and refactor deep module interfaces using seam discipline and depth principles.

Updated Apr 8, 2026

Search Tags:#testability #software architecture #interface design #module design #deep modules

Ready to run

npx skills add https://github.com/sadie100/claude-dotfiles --skill codebase-design-sadie100

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: codebase-design
Source: https://github.com/sadie100/claude-dotfiles/tree/main/skills/codebase-design
Command: npx skills add https://github.com/sadie100/claude-dotfiles --skill codebase-design-sadie100

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill helps in designing and improving the interfaces of deep modules, ensuring they are well-structured, testable, and maintainable.

Core Features & Use Cases

Deep Module Design: Provides a shared vocabulary and principles for designing deep modules with a small interface and a large implementation.
Interface Improvement: Assists in finding deepening opportunities and deciding where seams should be placed.
Testability: Enhances the testability of code by focusing on observable outcomes through the interface.
Use Case: When designing a complex module, use this Skill to create an interface that allows for extensive behavior while keeping the learning curve low.

Quick Start

Use the codebase-design skill to create a deep module interface for a new data processing function.

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 software architecture?▼

A deep module in software architecture features a small interface paired with a large implementation, providing extensive functionality while keeping the learning curve low and the system maintainable.

How do I design a deep module interface for a complex data processing function?▼

Design a deep module interface by finding deepening opportunities and applying seam discipline to structure the implementation, ensuring the interface allows extensive behavior while remaining small.

How does interface design improve software testability?▼

Interface design improves software testability by focusing on observable outcomes through the module's interface, allowing you to verify extensive behavior without exposing internal implementation details.

What is the best way to decide where seams should be placed during module refactoring?▼

The best way to decide where seams should be placed during module refactoring is to identify deepening opportunities that separate the interface from the implementation, ensuring clear boundaries for testing and adaptation.

Can I use this approach for existing complex module architecture?▼

Yes, you can use this deep module approach to refactor existing complex module architecture by improving the interface design and enhancing testability through structured seam discipline and depth as leverage.