Idea I had for an Add-on, pacified mobs

Hello everyone. So I was playing with actions and stuff, and I really like all the hidden Easter egg variants that name tags allow. Then I got the idea for an addon that allows the pacifying of some hostile mobs, maybe by gathering a resource and crafting items specific to each mob? Like to pacify a skeleton you'd need the addon resource, bones, and so on. This wouldn't be taming, just making a hostile mob no longer hostile. However, to work with Actions and Stuff, it would still need to be a vanilla skeleton instead of getting replaced with an addon variant who's pacified, but not a real skeleton as far as code goes. Maybe in the case of mobs with weapons like skeletons it could make them not hold the weapon, and Golems no longer attack pacified mobs. It would have to be something other than a name tag to be compatible with Actions and Stuff, but I want to emphasize that it's not about taming a mob to help us. It's more so to have them as decorations, like if we make a crypt we can have zombies and skeletons there, or if we made a potion lab we can move a witch there. Maybe boss mobs excluded, along others that wouldn't fit thematically like Warden, Ravager, Ghast since we have friendly ones, etc. Another detail would be creepers not exploding when pacified. Another detail is that pacified mobs wouldn't prevent the player from sleeping, and like nametags, they prevent despawning. I didn't know where else to share this idea, so hopefully this is the right place for that.