onion-architecture

What problem does it solve?

This Skill eliminates the tedious and error-prone work of manually writing Rust DDD code that violates onion architecture layer dependency rules, which leads to tight coupling and hard-to-maintain domain logic.

Core Features & Use Cases

• End-to-end aggregate generation: Creates complete, production-ready code for new aggregates across all four layers (domain, application, infrastructure, API) following strict DDD and onion architecture patterns.
• Existing code validation and fixes: Audits existing code to ensure correct dependency direction (inner layers never depend on outer layers) and fixes violations.
• Use case: Add a new Book aggregate to the existing book manager API, or extend the User domain with new validation rules without breaking layer boundaries.

Quick Start

Use the onion-architecture skill to add a new Book aggregate with full domain, application, infrastructure, and API layer implementation to the existing Rust book manager project.