My assumption is, if the agent is asking for it, then they want the whole shebang, which shouldn't be more than a paragraph. Like this:
Ferret is currently sequestered in his Milwaukee cape cod working on his next novel. Well, as sequestered as one can get with a wife, two boys, one ferret, and a hyperactive Dalmatian and an even more hyperactive Jack Russell. He's had a handful of short stories published and was editor/co-founder of a short-lived fiction magazine, Mid-Coaster, which he also revived briefly for an equally short-lived period on the web.
In his spare time he listens to his vinyl collection of classic rock from the '70s and hangs out at AbsoluteWrite.com and where he discusses such mundane topics as "Yak, Ferret, or Meercat. Which is better in a knife fight?"