how about a feature which makes Tivoli one of the mightiest monitoring systems: a push mechanism to initiate a connection from the client to the server and tell about a(n error) condition?
For instance
DOS> ksalert [IP-address server] alertnumber "AlertText"
Many applications are able to run external commands in case of something happened and I could use it from my own scripts w/o having to wait for hostmon to ask the client.