We run Keepp, a link in bio and website builder for creators and small businesses: one page that holds a website, selling, bookings, forms and chat. A few weeks ago we shipped an MCP server so Claude and ChatGPT can build and edit those pages directly. A person says "add my new class times and a booking button" in a chat, and the assistant changes a real, public page. That is a different job from most MCP servers, which read data or run a search. Ours writes to something strangers will see. H...