tinker

Right-clicking a permitted block with tinker mode active changes one of its cosmetic block state bits. The editor only offers cosmetic properties that do not affect gameplay or break the world, so the block behaves the same way afterward. Tinker mode keeps blocks from being broken while it is switched on, so an accidental click during editing does not remove a block. Tinkering a block can reset its state after an update, so builders should finish the work before the server updates.

Server owners decide what can be tinkered through a config.yml file, including which blocks cannot be interacted with at all. The config reloads while the server runs, so changes take effect without a restart. The mod needs to be installed on the server, and it works in single-player worlds as well. Tinker is published for Fabric on game version 26.2 and can also be run on Paper and Purpur servers.

The mod was written to recreate survival multiplayer worlds with friends without relying on debug sticks, and it is meant to sit alongside building tools such as Axiom. Tinker is open source under the MIT License, and its source code and issue tracker are public.