First of, Boomer as ablity to look at the top crisis card kicks in "at the end of" her turn. I asume that is after she has drawn and resolved a crisis card as the crisis step obviously has to come before the turn ends, right?
Next, if you have more then 10 skill cards at then end of any players turn, you have to discard down to 10. Now we have two things happening at the end of turn . So if Boomer has more then 10 skill cards, does she discard before or after she looks at the top crisis card?