I would like to hide all mob charms and their fragments, but neither JEI, nor KubeJS nor CraftTweaker seems to be able to hide them. Is there a config option I missed?

I have just run into this issue myself.

The underlying cause seems to be an oversight with the way the mod registers the charm recipes with JEI.

The JEI Plugin for this mod simply adds the default recipe to JEI's display list, regardless of whether such a recipe exists.

Unfortunately this means that JEI will display these "false" recipes for the charms even if the actual recipes have been removed or altered - they will not work in the crafting table, but JEI will display them all the same; furthermore, under some circumstances these "false" recipes will be displayed and the "real" recipes will not.

@hainkiwanki: To answer your question there is also no configuration available for this feature currently.

Oh, that's interesting. Good to know that. Thank you so much :D