Check whether the chunk you are in is a slime chunk.
This is a simple and easy command to check whether the chunk you are in is a slime chunk.
Here comes the commands:
/slime - Check if the block under you is slime chunk.
/slm - The command is exactly the same as the above command. It's just an alias.
/slimereload - Reload config file.
Permission nodes:
SlimeChunkChecker.reload - Access /slimereload command.
SpigotMC Page: https://www.spigotmc.org/resources/slimechunkchecker.86279/