After I gave the NPCS weapons other than empty hands and sword, the other weapons seemed to have no effect without attack animations, and some NPCS did not support the use of weapons

Thanks for the feedback. Could you please provide 1-2 example which weapons are not working.
I used the Epic Fight example on their page, which is supporting axe, hoe, pickaxe, shovel and sword.
See:

You can create a data pack if you want to adjust these animation for your own needs.

Thanks for the feedback. Could you please provide 1-2 example which weapons are not working. I used the Epic Fight example on their page, which is supporting axe, hoe, pickaxe, shovel and sword. See:

BOs-Easy-NPC-Epic-Fight/Common/src/main/resources/data/easy_npc_epic_fight/epicfight_mobpatch/skeleton.json

Line 40 in 2d4e403

"weapon_categories": ["axe", "hoe", "pickaxe", "shovel", "sword"],

You can create a data pack if you want to adjust these animation for your own needs.

Some types of weapons like the big sword and the long spear and so on because I haven't played this mod for a while I don't really remember