From Page 5 of the indictment
"On or about June 12, 2003, LIBBY was advised by the Vice President of the United States that Wilson’s wife worked at the Central Intelligence Agency in the Counterproliferation Division. LIBBY understood that the Vice President had learned this information from the CIA."
CPD is in the Directorate of Operations. Would this make her an operative? Are all operatives covert? I don't know, just asking.
Depends on what the definition of advised is....