I am curious as to when people became aware that she worked at the CIA. When Wilson quit as ambassador to Gabon, I think his last job overseas, is that when Plame stopped undercover work? Is that when people started to know that she worked at Langley?
It is murkey. But I think part of the murkyness is because of the job. She could easily be both in the same career. Spies come in from the cold. An undercover agent in a police department can quit when they are getting too well known on the street, and revert to a uniform or plains clothes homicide. I don't know exactly what Plame did, but I think the analysis is a bit too unsophisticated. It really doesn't have to be either or here.
The answer to the question "Was Valerie Plame a operative or a analyst" is most likely yes. Both.