I'm not sure how possible this is, but it would be nice to have recipe functions for anvil recipes. This would allow users to create things not otherwise possible, like an anvil-based disenchantment system (which someone on Reddit asked about some time ago).

If it's not possible (or too difficult to implement), that's fine.

I'm not exactly sure what you're asking for. One of the main features in the mod is being able to add recipes to the anvil using CraftTweaker scripts.

Something like this.

If you would like to test this feature and provide feedback, a build is available here: https://github.com/DevOnTheRocks/RockyTweaks/releases/tag/0.6.0-PRE-RELEASE-1