Some of this (the identification of words, passive voice) exists already, though results vary: https://www.goodreads.com/topic/show/1094904-proofreading-softwar

Some of this (the identification of words, passive voice) exists already, though results vary: https://www.goodreads.com/topic/show/1094904-proofreading-software-i-want-to-believe#comment_83082658 https://www.goodreads.com/topic/show/1094904-proofreading-so... (I link to this more because it's a comprehensive list of possible software even though the comparison was done by a vendor.)