domain-layer-design

Design and implement domain layers in backend applications across multiple languages.

Updated Jul 3, 2026
One-click install
npx skills add https://github.com/jsalio/My-sdd-flow --skill domain-layer-design
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: domain-layer-design
Source: https://github.com/jsalio/My-sdd-flow/tree/main/domain-layer-design
Command: npx skills add https://github.com/jsalio/My-sdd-flow --skill domain-layer-design

SYSTEM DOCUMENTATION & REQUIREMENTS

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

What problem does it solve?

This Skill addresses the challenge of designing and implementing a clear, maintainable domain layer in any backend application, regardless of programming language.

Core Features & Use Cases

  • Domain Layer Implementation: Provides a framework for structuring backend business logic following five language-agnostic principles.
  • Language-Agnostic: Supports development in C#, Go, Rust, Java, Python, TypeScript, and more.
  • Use Case: When a developer needs to create a use case, service, or business operation and wants to ensure adherence to clean architecture principles.

Quick Start

Generate the domain layer design for a new service by running the command 'domain-layer-design create a service'.

Frequently Asked Questions about domain-layer-design

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

FAQPage Schema
How do I implement a domain layer in backend development?

To implement a domain layer in backend development, you structure your business logic by isolating operations, defining contracts, handling results, and enforcing validation. This follows five language-agnostic principles for clean, maintainable code.

Can I use clean architecture principles for backend services in multiple programming languages?

Yes, clean architecture principles for backend services apply across multiple programming languages. This approach supports development in C#, Go, Rust, Java, Python, and TypeScript, ensuring clear separation of concerns regardless of your stack.

What is the best way to isolate business logic from infrastructure in a backend application?

The best way to isolate business logic is by creating a distinct domain layer that focuses on isolating operations and defining contracts. This enforces clear separation of concerns and keeps your business rules independent of external systems.

How do I enforce validation and handle results in a hexagonal architecture?

To enforce validation and handle results in hexagonal architecture, design your domain layer to explicitly define contracts and manage operation outcomes. This ensures business operations remain clear, maintainable, and structurally sound.

When do I need a dedicated domain layer for my backend application?

You need a dedicated domain layer when creating a use case, service, or business operation and want to ensure adherence to clean architecture principles. It solves the challenge of maintaining a clear, isolated business logic structure.