smithery-ai/render-markdown — reverse-engineered prompt

Build me a small local tool for coding agents that can take a markdown file on my computer and turn it into a nice HTML preview in the browser.

I want it to support common markdown features like tables, task lists, footnotes, code highlighting, and mermaid diagrams. It should have two ways to use it. One mode just renders the markdown once into a self contained preview HTML file and opens it. The other mode starts a tiny local live editor where I can view the rendered page, switch to raw markdown editing, make changes, autosave back to the original file, and see the preview update.

Please make the preview feel polished, with warm light and dark themes, plus a system theme option that remembers my choice. Keep it simple to install and run from the command line, like something a local coding agent could call with a slash command. Look up current docs online if you need to.