There were restrictions against automatically entering orders for option trades.
Not sure what the rule is, but there is a CBOE requirement that says you can't enter option orders (RAES) faster than every 15 seconds. IB was fighting it, but I haven't heard what happened.
TWS will pop up a window (that you can auto-close with an addon) and will restrict "pacing violations".
Hope this is still accurate info. If not, my appologies.
let me know if your auto trading works for options. I have never seen something that does for electronic futures let alone options.... good luck with it.