Only what you placed
Eighteen block types can follow you: crafting tables, furnaces, blast furnaces, smokers, brewing stands, enchanting tables, smithing tables, stonecutters, grindstones, looms, cartography tables, normal and trapped chests, anvils in all three damage states, ender chests, and lecterns. The list is a block tag, so a datapack can extend it. Only blocks placed by a player are tracked (village and dungeon workstations stay ordinary furniture forever), and breaking a follower unregisters it.
Tip: No paper yet? Break the block and let a friend place it. It follows them, not you.
The gaze rule
A follower within three blocks of its owner never moves, even unseen. At four blocks or more it becomes eligible. The visibility check samples several points on the block rather than just its centre, and treats your entire forward view as watched, including the far edges of your peripheral vision, so a block only counts as unseen when it is genuinely behind you or hidden. It then has to stay continuously unobserved for sixteen ticks before it may take a step, and movement is only considered every eight ticks, which is 0.4 seconds.
Tip: The sixteen-tick grace window exists so a quick camera flick can't trigger a jump. You cannot bait one out.
Formation
Followers do not pile up on one square. They occupy a stable fan-shaped formation behind their owner: the first one directly behind you, then widening rows further back. As you walk, each block steps toward its own assigned slot in the fan, which is why a large group stays legible instead of turning into a scrum.
Tip: Stand still in the open and the formation resolves itself. It is the only way to see the shape.
Nothing is lost in the move
Inventories and running timers are saved and restored on every single move, so a furnace keeps its fuel and its progress and a brewing stand keeps its brew. A double chest is moved as one paired transaction and keeps both inventories, and the mod will never split a double chest whose other half is untracked or belongs to someone else. If placing at the destination fails for any reason, the original block state and NBT are restored.
Tip: There are advancements for moving a lit smoker and a lit blast furnace. Yes, dinner survives.
Restraining Orders
A Restraining Order is crafted from one paper and one red dye, shapeless, and the recipe returns two. Right-click one of your followers with it and the block is anchored permanently, with the message "Restraining order served. This block must remain here." The order is consumed in survival, but sneak-right-clicking the anchored block with an empty hand retrieves it, and breaking an anchored block also returns it. One order anchors both halves of a double chest.
Tip: Anchor anything a hopper, a comparator or a piston is touching before it wanders out of the circuit.
It does not cheat
Followers never overwrite solid blocks or fluids, so nothing you built gets eaten. They will not move while their owner has a container screen open, which means a chest can never vanish out from under the menu you are reading. The source block entity is removed before the source block, which suppresses vanilla's usual habit of spilling a chest's contents on the floor. No chunks are ever force-loaded. And barrels, hoppers and other automation blocks are deliberately excluded from the list.
Tip: Barrels are the safe container here. If a storage system has to stay put, barrel it.
Across dimensions, and the config
Followers can pursue their owner through a portal into another dimension, which is on by default and has its own advancement. Everything is server-owned config: the move interval (8 ticks), the still distance (3 blocks), the gaze grace window (16 ticks), the per-player cap (64 followers), dimension travel, whether movement sounds play at all, and their volume (0.55).
Tip: Raising the still distance is the gentlest way to calm the mod down without switching it off.
