I would love a summary of every post but unfortunately we don't allow bots or novelty accounts on here.
Luckily, we have reddit for that.
The app Hews has a feature that shows the post with the text "tl;dr" in it underneath the link. It's quite useful in my experience.
You'd like it in the short term but probably not the long term. It's useful to remember HN isn't just a list of links. It's a conversation. If you set up your list of links to attract a certain audience, those people will eventually dominate the conversation.
From a strategic standpoint, the way to win is to appeal to a bookish audience. It's why HN is better than any subreddit.