herdr-markdown (Live Markdown + Mermaid for Herdr)

About

This is a mod for the Herdr terminal app that adds a pane beside the terminal showing Markdown formatted instead of as raw text. It draws Mermaid diagrams, shows images from the project folder, follows links between files and updates when an agent rewrites a file. It is read-only and makes no network requests, which lets people read agent-written plans as they are produced.