A small static handler that suppresses incoming chat messages when chat integration is unavailable and sends a private reply to the sender indicating administration is unavailable.
using Sandbox;
namespace SboxSuperuser.Engine.ChatIntegration.Platform;
internal static class UnavailableChat
{
internal static void Observe( ChatMessageEvent message )
{
if ( message is null || message.Suppress || message.Sender is null || !Networking.IsHost ) return;
// A retired/duplicate runtime must not turn command text into public ordinary chat.
message.Suppress = true;
ChatReplies.Send( message.Sender, Guid.NewGuid(), new CommandResult( CommandStatus.Unsupported,
"Server administration is unavailable; ask the operator to check diagnostics and restart the session if required." ) );
}
}