If you wish to check what Gossip parses from your game's MSSP data, you can use this checker.

Gossip follows the guidelines set on the TinTin++ MSSP docs page.

In order for this check to work, your game must send the IAC WILL MSSP telnet option or respond to mssp-request at the login prompt. Gossip will send the term type Gossip if the game requests it.

If your game does not send IAC WILL MSSP, Gossip will send mssp-request\n after 10 seconds. Gossip will wait 20 seconds before giving up.