What MCP actually does here
MCP is the connector that lets Claude reach into Figma and work with it directly. Without it, Claude is just guessing at design in a chat window.
With it, you can sit inside your workflow and ask for images and ad concepts that pull from your real files. The interesting part is that Figma handles the image-level execution while Claude handles the direction.
My read is that most people overcomplicate this. It is a pipe between two tools you already use. That is the whole trick.