No Mending Librarian Trades

This datapack removes the Mending enchanted book trade from librarian villagers. It works by overriding the vanilla enchantment tag minecraft:tradable and excluding minecraft:mending. As a result, librarians will no longer offer Mending books at any level, while all other trades and mechanics remain unchanged.

Features

• No librarian will trade Mending enchanted books.
• All other librarian trades stay vanilla.
• Works in singleplayer and multiplayer.
• Server-side only — no client mods or resource packs required.
• Compatible with Minecraft 1.21 through 26.3.

Installation

1. Download the .zip file.
2. Place it into your world’s datapacks folder.

• For servers: /world/datapacks/

• For singleplayer: //datapacks/

3. Run /reload or restart the server.
4. Use /datapack list to confirm it is active.

Notes

• Existing librarians that already have a Mending trade may keep it. To fully apply the change, use new librarians, reset trades, or start a new world.
• This datapack only affects librarian villager trades. It does not remove Mending from loot, fishing, or other sources.

License

MIT License — free to use, modify, and redistribute.