I purchased a stir fry vegetable packed containing edamame beans and only cooked it for about 3 minutes, despite since reading it advised 10 minutes. are the edamame beans poisonous if not cooked properly?

They are not usually spoiled, but watch for signs of food poisoning. This usually occurs within hours of ingestion. In particular, if you experience nausea or vomiting, please contact a physician. From your description though, no problem is anticipated.

This should not be a problem. You will likely have no issues whatsoever with the undercooked edamame beans. Good luck.