“I would like to make an agent that creates mermaid diagrams for people based on their chats and documents that they can use to edit on the fly and collaborate with”

MermaidMind 9000

“Congratulations, you just reinvented Mermaid's own AI editor, but with more existential dread.”

An AI agent that parses conversations and documents, extracts relationships and processes, and auto-generates editable, collaborative Mermaid diagrams in real time.

The core loop — LLM extracts structure, outputs Mermaid syntax, renders in browser — is genuinely a solved problem. Eraser.io does this for engineering docs, Whimsical does it for brainstorming, and Mermaid.js has its own AI assistant. The collaboration angle is the only real differentiator, but even that is covered by tools like GitDiagram for GitHub repos. You're not wrong to want this, it's just that everyone else already wanted it first.