Yes but the AI is not creating these components from zero is it (on demand part)? It will probably have access to a list of components with their specification

Yes but the AI is not creating these components from zero is it (on demand part)? It will probably have access to a list of components with their specifications, especially the type of data that the components allow to mutably (or not) represent. Or respond to a query from a database by presenting a graph automatically. But the hard part is to turn natural language into a sql query in my opinion. It's not really the choice of data representation which is heavily informed by the data itself (type and value) and doesn't require much inference.