I Built an AI System Design Coach — Clone It, Try It, Break It

Arcwise is an open-source AI system design coach that provides structured feedback on system design problems. It guides users through a design process with AI-powered questions and generates a live Mermaid architecture diagram. The coach scores the design across 5 dimensions, providing actionable feedback. Engineers can clone and customize the project, which uses a production-quality tech stack. To get started, clone the GitHub repository and set up the AI abstraction layer.