Without an external coded tool reading creature skill levels won't work. You can modify some smps and observing the behaviour by an external tool. This tool has to check you telecaster all the time and has to interact with the smps. If you combine lua + smp + external tool you are able to check summon skill levels...
This is how the random skill feature is working on nemesis...(random skills without relog and these things) The biggest thing you will need doing this was released by raskim

who leached the learn_creature_skill syntax :P
**** you for releasing that again raskim :P