Describe what this tool does, conceptually: (not the how, just the outputs)
The isTagFor datapack tag would be great if it supported either wildcards or assumed wildcards.

Ex:

{
  "xp_values": {
    "CRAFT": {"crafting": 0},
    "BLOCK_PLACE": {"building": 0},
    "ENTITY": {"charisma": 0}
  },
  "override": true,
  "isTagFor": ["minecraft:*"]
}

Describe how current configuration methods are insufficient for the task:
If you want something to affect all items from a mod/set of mods, it can be a lot of work.

What platform would you like to see this tool on:
In-game.

It does though? Unless it broke.

I tried it and wasn't getting it to work. Would it be failing if any of the potential items (enchantments, etc) aren't compatible with those settings?