MCPs everywhere, wth is that?

I got tasked with connecting Figma to our UI Kit via MCP Starting with just documentation, it looks super simple, even LLM like Claude can do that for me and suddenly I can tell it to read a Figma file and create some code from it. Just a magic black box doing something cool for me. I don't like black boxes, so let's do a little bit of unboxing. What is an MCP in general? Model Context Protocol is an open-source standard for connecting AI applications to external systems. So basically it's some kind of protocol to tell LLM how to do stuff with external application.