The hub negotiates between Commanders and Actors via a textual, line-based, command-and-response protocol. This protocol is intended to be simple to implement and conform to: we want to encourage development.
Request that the command string Command be sent, un-molested, to the target Actor. Responses to the command will be returned to the caller labelled with MID, as defined by the Command Response protocol. The CID argument can be used to specify the source of the command.
For simple callers, it can be left as 0. Whatever is passed to the hub will be returned to the caller.
MIDs must be positive, incrementing integers.
CIDs must be one or more non-negative integers, separated by single periods. e.g. 0, 0.1, 1.99