Silverfish 1.12.2 is a library mod that is small but necessary for other mods. It is actually useful for the users to make modding become easier.

Facts of Silverfish
The release does not add any new fish to the game. It’s only a simple library that is essential for modding. It can help the process end faster than you expect.
Meanwhile, you’re able to find out some features that it has. They are rendering hooks, prefab blocks, and item classes, with lots of other helpful content.
Besides, it has provided a custom rendering registry, JSON-less block, with item rendering, and in-code recipes.
You can visit the GitHub repository to look up its source code and the remaining features.
In general, Silverfish is an API and Library mod that requires you to install Minecraft Forge.
Requires:
Screenshots