If you've excised a command from your arsenal, you can the following to remove it.
tooloo remove <command name>
This will delete the entry from TooLoo's database. It will not affect the original .toml file or the command itself.
Currently TooLoo doesn't know how to rename a command. Instead, just delete it, and re-add it under the new name.
tooloo remove <old command name> tooloo add <path to updated .toml file>