Does this break TOS

[Khatovar]

The question I have is how exactly does spamming work? F8,F9,F8,F10 sounds all well and good if it's working like an ingame castsequence, as in it doesn't care if you're pressing the key 1 time a second or 40, it's only going to cast that first spell and ignore everything else until the spell casts and the GCD is done.

But you've taken that out of the hands of the game...your program is now tracking keypresses. How exactly is it responding to that? Swap those spells around so you have :

1st Healing Touch
2nd Regrowth
3rd Rejuv

Now it's not instants for the first spell. I hit F8,F9,F8,F10 @1 keypress a second....what happens? I hit F8, F8, F9 in rapid succession, what happens?

As for the cooldown thing, I think that's really, deeply in the grey area. You're using external information to determine when something should be allowed to try casting.

You're worried that /click is an exploit but don't have any problems taking the casting mechanics out of the hands of the game?