Defends himself
A hostile mob within a few blocks gets his full attention until it is gone.
Autopilot · no orders needed
Say "autopilot" and Brobot works down his own list, from empty hands toward iron armour. Any order from you takes over at once.
The list
Top of the list wins. The times are from one test run that started with nothing in his hands. In ten minutes he mined 128 blocks, placed 131, crafted 146 items and did not die.
If there is a bed nearby, or one in his bag, he uses it and sleeps until morning.
With nothing to eat and hunger setting in, he hunts a couple of animals and eats.
Chops a tree by hand, then planks, sticks, a crafting table and the pickaxe.
Done 18 seconds in
Mines cobblestone and upgrades: stone pickaxe, sword and axe.
Done 1.5 minutes in
If he has no place called home, he chops about forty logs, builds the house and saves it as home.
Done 8.2 minutes in · 42 logs chopped, 124 blocks placed
Finds iron ore, mines three, smelts them in his own furnace and crafts the pickaxe.
Done 9.9 minutes in
Once he is carrying three wool of one colour, he crafts a bed so nights stop being a problem.
One piece at a time: mine, smelt, craft, put it on.
Coal, iron, wood and stone in rotation. He harvests ripe crops he passes, and when his bags are nearly full he walks home and stores everything in a chest.
Always on
These interrupt whatever he is doing, then hand control back to the task.
A hostile mob within a few blocks gets his full attention until it is gone.
When hunger drops he eats the best food he is carrying.
Low on breath, he surfaces first, breaking a ceiling if he has to.
Walking without getting anywhere for five seconds triggers a wiggle and a new route.
You stay in charge