Here is the SpudFibo, this is the best automated fibonacci indicator.
I have added arrows signal, a sound alert, a pop-up alert and an email alert.
The crossing is determined by a bar with an opening over/under a level and a closing over/under this level. It seems to be the best way to define the crossing.
I have tried to get the alerts as soon as the price is over/under the levels, but it doesn't work (false signals).