Is it still possible to regenerate the default mutation files for all currently installed mods with default plugins? I would assume so but I can't seem to figure out how - there's nothing in the configs and no commands registered that I can see...

Deleting the *_mutation.json files in config/agricraft/json/defaults should regenerate these.

Otherwise you can just download the config files from https://github.com/AgriCraft/AgriPlants and place them in config/agricraft/json/defauls.

Sorta. If you're only interested the mods that are supported by default*, then you can do it like bibo38 said. I had tested that that still worked, but forgot to report back. If you're curious, the defaults get transferred over here: Line 71 of CoreHandler.java. It uses the copyResource method from AgriCore's util.ReourceHelper class.

That said, it doesn't generate anything auto-magically. So if you have mods installed other than those that are part of the default* JSONs, then it won't help you. If you're coming from a mod pack which had defaults, then those should be easy enough to download and replace?

Good luck!

• defaults = Actually Additions, Botania, Harvestcraft, Immersive Engineering, Mystic Additions, Mystic Agriculture, Natura, Resource Crops, and Vanilla. [Link]

Yup regenerating basically amounts to deleting the JSON files. All the supported default files will be regenerated automatically on the next launch (by a basic copy operation from the internal copy of the default JSON files).