Class sheet
A tool shed, a roadside stand, and a locked crate.
The class split the system into three pictures: how a model reaches a tool, where the code runs, and how an order stays shut on the road.
The shed is the MCP server
The model is knowledgeable and stays in the house. The shed holds the tools. MCP is the hitch that fits more than one implement, plus the list of what each tool does, plus the rule that a tool does not run because someone wandered in.
The stand and the workshop
A pre-packed stand on the highway is the right picture for pages that are built ahead of the visitor. Netlify is that stand in the class. A workshop that stays running is the right picture for a live server, a database, or an MCP process. Fly.io is that workshop in the class. The conveyor is continuous delivery: test the batch, then restock the stand without closing it.
The crate is encryption
Lock the crate at the farm. The driver cannot read it. Only the person with the matching key opens it. That is the class picture for end-to-end encryption. Order details are not a note pinned to the outside of the truck.
A public website of prices can live on the stand. Taking payment, inventory, and the till together is OpenSign. Building the private system around a company is BrandMatchGrowth.