Your link is from 2013. You're intentionally using the term "Agent" to muddy the waters. Don't do that.

Edited for clarity, thank you. I wasn't trying to muddy the waters (doesn't mean I didn't), it's a term I've used for a long time. I did mistakenly think the quotes would help disambiguate. I don't know what Knight called them; the first S in "SMARS" is Smart.