Librarian Insight

Right-clicking an empty librarian lectern opens the Librarian Insight interface, which lists the enchanted book trades that the assigned librarian can offer. Instead of a long wall of text, the trades appear as clickable Minecraft item icons with tooltips and a scrolling layout, so each trade's inputs and outputs can be scanned quickly. The mod is aimed at players who want to compare prices or see what a librarian sells before choosing a trade.

The interface also shows the full enchantment name and level, the current emerald price and trade availability, and it can optionally display prices for each trade. Long enchantment names scale and wrap so they remain readable. Text colors can be customized. Librarian Insight does not change vanilla trading mechanics: villagers, prices, restocks and reputation work as they do without the mod, and the information is only presented in a different place. It works on either side, and neither needs it. It is released under the MIT License and is open source, with its source code and issue tracker publicly available.