InternalCommand
A command only the platform sends: the service's own sagas, schedules and in-process gateway, and the other services that call it on its internal port, as wow.callers.<service> permits them. The Manifest lists it as internal, with its routes as for any command; the internal port serves them, and the public port does not: a request to one of them there is answered as an unknown path is, a 404 problem. The public port's OpenAPI document and the clients wow-generator generates leave it out.
Mark a command the service's own processes record, such as the outcome of a payment gateway's charge, which a client must never send itself; its authorization still applies to the calls the internal port takes.