I have a modified version of the Melee Bot that was over on the Tault Forums... I have attached it here.
Basically it improves the looting and targeting of the existing Melee Bot.
Previously the other bot would not check to see if loot existed on the target and would still press "Enter" to "click" the Loot All button. This would cause the chat window to be opened, and all your future commands would be sent to the chat window.
I also added the ability to look around when trying to target a mob. This improves the ability to target mobs that are behind and at weird angles etc..
So far, I really only see the need to improve the pathing somewhat. It's fairly good as it is imo.
Also, this works good for ranged too. My brother uses it on his Minstrel and I use it on my burg. I don't see why it wouldn't work for any class tbh...
Really you should be able to run it indefinitely if you are in an area where you can't be killed
I've had it running for 3 hours before getting stuck behind some rocks..