If it can be done, it may be a good idea to add in Revive/Call Pet, or at the very least, not return Kill Command when you have no active pet.

i have added
CallPet = Spell(883),
and after
if Everyone.TargetIsValid() then

if not IsPetActive() then if AR.Cast(S.CallPet) then return ""; end end
need to find for revive

Has been added in 9c4f7c4 :)