Is there a way to notify when the in-game team size is breached? I run a solo/duo community server and I've occasionally caught trio's because even though they were basing next to each other, avoiding to auth on each other's bases, but still roaming together, they were dumb enough to add each other to team.

Unfortunately the group limits plugin only notifies me of doors, turrets and TCs, so I had to discover this manually.

It is already planned to add some detection for roaming, thank you for creating a thread anyways.

It's not a suggestion for roaming together. It's for the in-game team size.

It doesn't trigger an alert for me at this time when they add a 3rd player to the group, meaning that currently if they avoid each other's doors/tc/auto turrets, they can still be playing as a group of 3+ with the advantages of the team GUI.

Is there a way for it to trigger a warning when a player is added to team that makes the team breach the maximum group size set?

Limit it with an in-game command instead then, that's it. There is one like maxteamsize.