What building an MCP form server taught me about designing tools for AI agents

I've spent the last few months building a form builder with an unusual bet: the Model Context Protocol server is the product. There's a web dashboard, but you never have to open it. You describe a form to Claude, ChatGPT or Cursor (say, "a client intake form with budget and timeline fields") and the AI creates it, publishes a live URL, and reads the responses back, all in the same chat. Most form tools that ship an MCP server bolt it onto a dashboard-first product. Building MCP-first flipped how