diagram-design

When working with AI coding agents like Claude Code, the quality of visual documentation often falls short. Most LLMs default to Mermaid.js, which, while functional, frequently produces "slop"—diagrams that feel generic, cluttered, or visually unpolished. diagram-design solves this by providing a curated library of 29 editorial-grade diagram types specifically optimized for AI generation. These templates are built using self-contained HTML and SVG, meaning they do not rely on heavy external libraries or complex CSS that can confuse an LLM. By stripping away unnecessary elements like heavy shadows and cluttered styling, the repository focuses on structural clarity and professional aesthetics. This makes it significantly easier for an AI to manipulate the code without breaking the visual integrity of the graphic. Whether you are documenting a complex microservices architecture, a user authentication flow, or a data pipeline, these templates allow you to move beyond basic flowcharting. You can instruct your AI agent to use these specific patterns, resulting in diagrams that look like they were crafted by a designer rather than a script. The result is a seamless integration between code generation and high-fidelity visual documentation, perfect for modern, AI-augmented development workflows.