WAIT equivalent in the main menu?

[lacker]

Is there any way for the external process to tell Communication Mod to just do nothing in the main menu until the player starts a run? It looks like the WAIT command only works during the run itself, and if the external process doesn't send any command then it will time out.

[lacker]

As per discussion on discord, you can just print nothing at all to stdout, and the mod will do nothing.