Earthcomputer/ClientCommands adds several commands, all of which start with the letter c to denote that it is a client side only command. As this mod adds a client-side command /ghost, it may be renamed to /cghost for consistency.

The rename could either be an alias, whereby /cghost aliases /ghost, or it could be a full rename, where /ghost is no longer a command added by the mod because that command was renamed to /cghost.

The command has been /ghost ever since the mod came out in 2017. I won't change that because some other mod, that came out much later, uses some kind of standard for itself.