Set Up a Whitelist to Allow Only Specific Pets
Enable Whitelist Mode
Open your mod's configuration file. Find the black_list_mode setting and set it to false. This switches the mod from blocking animals to *only allowing* the ones you specify.
Add Your Approved Pets
Locate the entity_types section in the config. Add the exact game names of animals you want to allow wearing collars. Use the standard Minecraft format:
`
minecraft:wolf
minecraft:cat
minecraft:horse
`
Each pet name goes on its own line. Common domesticable animals include wolves, cats, horses, parrots, and llamas—use their full minecraft: prefixed names.
Test Your List
Save the config and reload your world or server. Try placing a Collar tag on an animal that's on your list—it should work. Try one that isn't listed—it should be rejected. If collars still work on unlisted animals, double-check that black_list_mode is set to false.
Adjust as Needed
Add or remove animal names from entity_types anytime. Changes take effect after a reload.