Sounds good! Tony's perfectly human, as far as I know (although Chew could totally pull a fast one on me aliens are a plot point right now I DONT KNOW) but his powers technically mean he's a psychic, albeit a very, very specialized one. Also, even though he technically ate part of its human remains, a detached soul was able to pick up on his powers too.

IN A NUTSHELL Zero would definitely notice his powers!! If Zero's canon has anything about specific auras or presences he'd be seeing to detect that feel free to run with whatever would make the most sense? I'm canonblind and have no idea, sorry! /)_(\