I understand how to request closed traffic from the ground, and what it allows me to do (What does "closed traffic" mean?).
There's another closed traffic scenario that I imagine to be common. but I'm not quite sure how to string it all together.
Let's say I'm flying VFR to a Class D airport, where I'd like to do some touch-and-goes and then depart.
As discussed in How do I request a touch and go and then remain closed traffic?, I can request "closed traffic" on the way inbound, and let the tower know that I'll be departing (and in what direction).
On my last pass, I would announce midfield (e.g.) and expect "clear for the option". After acknowledging, should I also request/remind tower re:departure?
For example, should I acknowledge, "cleared for the option, NXXX123 ..." and then add, "... also, this will be my last pass, VFR departure to the north"? Should it be considered (and phrased) as a request?