deep-module

Draft and evaluate modular designs to enforce clean module boundaries.

2|Updated Apr 23, 2026
One-click install
npx skills add https://github.com/fredrick84823/fstack --skill deep-module
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: deep-module
Source: https://github.com/fredrick84823/fstack/tree/main/skills/deep-module
Command: npx skills add https://github.com/fredrick84823/fstack --skill deep-module

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Deep Module helps engineers design software with minimal external interfaces while encapsulating internal complexity, preventing leakage and enabling easier changes.

Core Features & Use Cases

  • Plan Mode: create Module Boundary Sketch.
  • Implement Mode: create Interface Sketch.
  • Review Mode: Deep Module Review.

Quick Start

Define a new module boundary for the Payment service and outline its external API.

Frequently Asked Questions about deep-module

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

FAQPage Schema
How do I design software with clean module boundaries and minimal interfaces?

Design software with clean module boundaries by drafting Module Boundary Sketches during planning to enforce minimal external interfaces. This encapsulates internal complexity, prevents leakage, and enables easier changes.

What is the best way to sketch interface boundaries before coding?

The best way to sketch interface boundaries is using Interface Sketches during the implementation phase. This shapes external APIs before coding, ensuring modules expose minimal external interfaces while hiding internal complexity.

Can I evaluate modular design depth during a code review?

Yes, you can evaluate modular design depth during a code review by performing a Deep Module Review. This review includes depth checks and guardrails to prevent overly complex interfaces and ensure clean module boundaries.

When do I need to enforce API boundaries for system design?

You need to enforce API boundaries for system design when shaping interfaces during planning, implementation, or review phases. This prevents internal complexity leakage and ensures modules maintain minimal external interfaces for easier changes.

How does interface sketching prevent overly complex module APIs?

Interface sketching prevents overly complex module APIs by applying depth checks and guardrails during the design process. This enforces clean module boundaries, ensuring minimal external interfaces encapsulate internal complexity.