If there was a restriction on the climb I would :
a) not issue the climb clerance, or
b) mention "after KOK" or "after Bambi" , and
c) carefully listen to the read back and make sure the restriction was well understood.
As for Gonzo's suggestion, I only use "climb now", "descend now" or even "turn ... now", enphasizing the word "now" when I an immediate response.
A/C departs, makes first R/T contact with Approach.
ATC replies "Climb to FL 240. Identified"
- Radar Identification is a fact when the "Identified" is pronuonced ... Same sentence but two diferent clearances/information.