Official notes
Official wiki for this creature. Official news wins.

You already know the room. The creature is the constant. You are the variable.
Yard fodder. Diplomacy is upstairs.
Monster · Old School RuneScape
Where
Goblin Village
Not a slayer assignment. Learn the room, then leave.
Hunt
Yard melee. Multi. Learn food on these, then leave. Diplomacy is the politics; this is the fodder.
Watch
Task-only doors, face covers, and cannon-blocks are on the live page. Confirm on the wiki.
Kill
A kill ends when goblin drops. Walk the room if you pulled extras. Reset at the door when the task is done. Wrong prayer or the wrong tile is the wipe. That is the whole file. Do not treat a slayer floor as a raid invocation. Counts, drops, and the living method: the Old School wiki for this hour.