1. A method of facilitating processing of operator message commands in a computing environment, said method comprising: obtaining, by a coupling facility of the computing environment from a source separate from, but coupled to the coupling facility, an operator message command and a token associated with the operator message command; using the token to provide a buffer usable in performance of the operator message command, wherein the buffer comprises a token field for storing the token; performing the operator message command, the performing using the buffer; and providing a response to processing the operator message command, the response to be available to the source of the operator message command.