Currently all item / block tags of the sack item, except for minecraft:mineable/shear and supplementaries:shulker_blacklist, are only being defined with specifically the supplementaries:sack item instead of the supplementaries:sacks tag.

I would suggest changing the remaining tags that are just being attributed to the sack item (item tag supplementaries:overencumbering, block tags minecraft:guarded_by_piglins, supplementaries:hang_from_ropes, farmersdelight:mineable/knife) to simply include the whole supplementaries:sacks tag, since that would make creating new sacks less error-prone for addon devs.

done