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pelizzai-codebase-design

Standardize deep module design with interface-implementation separation and seam identification.

Updated Jun 26, 2026
Search Tags:#architecture#refactoring#testability#interface design#modularity#deep modules
One-click install
npx skills add https://github.com/rpelizza/PelizzAI --skill pelizzai-codebase-design
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: pelizzai-codebase-design
Source: https://github.com/rpelizza/PelizzAI/tree/main/.agents/skills/pelizzai-codebase-design
Command: npx skills add https://github.com/rpelizza/PelizzAI --skill pelizzai-codebase-design

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This skill addresses the common issue of shallow, tightly coupled code structures that are difficult to test, maintain, and extend. It provides a standardized vocabulary and set of principles to ensure that modules are designed with high leverage and clear seams.

Core Features & Use Cases

  • Deep Module Design: Provides a framework to hide complexity behind simple interfaces, ensuring high leverage for callers.
  • Seam Identification: Guides the placement of architectural boundaries to allow for behavior changes without invasive edits.
  • Testability Assessment: Offers heuristics to evaluate if a module is testable through its interface or if it requires refactoring.
  • Use Case: When refactoring a legacy service, use this skill to identify where to place seams and how to simplify interfaces to make the system more navigable and testable.

Quick Start

Apply the pelizzai-codebase-design skill to evaluate the current module interface and suggest improvements for better testability and depth.

Frequently Asked Questions about pelizzai-codebase-design

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

FAQPage Schema
How do I design deep modules to hide complexity behind simple interfaces?▼

Deep module design hides complex implementation behind simple, high-leverage interfaces. This approach ensures callers interact with minimal exposure to internal logic, making the system easier to maintain and navigate.

What is the best way to identify seams for refactoring a legacy codebase?▼

Seam identification guides the placement of architectural boundaries to allow behavior changes without invasive edits. It standardizes where to isolate legacy components so you can refactor safely and improve overall testability.

How do I assess if a module is testable through its interface?▼

Testability assessment uses heuristics to evaluate if a module can be tested strictly through its interface. If testing requires breaking interface-implementation separation, the module requires refactoring to establish clearer seams.

Can I use this approach for architectural reviews of complex software systems?▼

Yes, this approach applies directly to architectural reviews within complex software systems. It enforces strict interface-implementation separation and vocabulary adherence to ensure consistent codebase structure during evaluations.

Why does tightly coupled code require strict interface-implementation separation?▼

Strict interface-implementation separation resolves tightly coupled code structures by defining clear architectural boundaries. This separation prevents invasive edits when changing behaviors and directly improves system modularity.

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