This tool adds nine blocks which have no place in the inventory and you need to add them using commands. Particularly in my great experience creating maps, it was a bit annoying so I hope you find it useful.
By
Ligged
Published on
April 17, 2022
The NPC spawn egg still works but the Agent spawn egg dosent spawn in the agent.
The Eggs can be gotten by using these commands.
NPC: /give @s spawn_egg 1 51
Agent: /give @s spawn_egg 1 56
Or maybe you can add the Unknown Block
Use: /fill ~ -1 ~ unknown
Then go into survival and break the block.