You could write an api, and then document it, and then add maybe useful prompts?

Then you’d need a way of passing all that info on to a model, so something top level.

It’d be useful to do things in the same way as others (so if everyone is adding Openapi/swagger you’d do the same if you didn’t have a reason not to).

And then you’ve just reinvented something like MCP.

It’s just a standardised format.