Tinkers JEI Prefilter is a small performance compatibility mod for Minecraft 1.20.1.
Large Tinkers' Construct installations with many addons can generate tens of thousands of material variants for tools and tool parts. JEI normally processes these variants when building its global ingredient index, even when they are later hidden from the ingredient list.
This mod filters items tagged #tconstruct:modifiable and #tconstruct:parts before they enter JEI's global ingredient index.
This reduces the amount of work JEI performs when loading worlds, particularly in modpacks containing many Tinkers' Construct addons.
The mod does not remove the tools or parts from Minecraft. They remain usable in gameplay, Creative Mode, Tinkers' crafting systems, and recipes. It only prevents those generated variants from being added to JEI's global searchable ingredient list.
Used in Philosoper's Tools
Requirements:
- Minecraft 1.20.1
- Forge
- Just Enough Items (JEI)
- Tinkers' Construct
This mod was created for use in large Tinkers' Construct modpacks but can be used independently. Feel free to add it to any modpack.

