Trade Selector

Trade Selector is a client-side Fabric mod for Minecraft 1.21.x that automates librarian enchanted-book rerolling.

What it does;

• Bind a librarian and its lectern
• Choose a target enchantment, level rule, and max price
• Start automation and let the mod reroll trades until it finds a match
• Stop automatically when a matching trade is found

Features;

• Automated librarian reroll loop
• Enchantment targeting
• Level matching modes: Any, Exact, Range
• Max emerald price filter
• Configurable success sound
• Optional lectern recovery movement
• Safety checks for manual movement/focus changes
• Works even when Minecraft is not the focused window

Important behavior;

Lectern breaking does not auto-select tools.
The mod breaks lecterns using your currently selected hotbar item. If you want faster breaking, keep your preferred tool selected before starting.

Keybinds;

• K — Open Trade Selector GUI
• V — Bind librarian
• B — Bind lectern
• N — Toggle automation

Disclaimer!
Use at your own risk. You are responsible for following server rules. I am not responsible for bans, suspensions, or other account penalties resulting from use of this mod.