Vanilla villagers have 2 to 12 trades, and each trade can only be used a specific number of times (usually 2-12 uses) before the villager "locks" the trade until they work at their station.
Simply put: It removes the trade limit.
Your villagers will no longer be finicky employees who clock out after three sales. They will become industrial vending machines. And sometimes? That’s exactly what your Minecraft world needs. File name- Villagers-Infinite-Stock-Data-Pack-1...
Drag that file into your datapacks folder and type /reload . Note: Always back up your world before installing new data packs. Vanilla villagers have 2 to 12 trades, and
Enter the . If you’ve downloaded a file named Villagers-Infinite-Stock-Data-Pack-1... (likely version 1.20 or 1.21), you have just unlocked the ultimate quality-of-life upgrade for your world. They will become industrial vending machines
If you have the file Villagers-Infinite-Stock-Data-Pack-1.20.1.zip sitting in your downloads folder right now, stop hesitating. Install it.
Never Run Out of Mending Books Again: The “Villagers Infinite Stock” Data Pack (1.20/1.21)