I wonder why no one has tried to build an AI around TOS and other contracts. It could be trained on 1000s of documents and learn what clauses people want to be

I wonder why no one has tried to build an AI around TOS and other contracts. It could be trained on 1000s of documents and learn what clauses people want to be made aware of, and/or provide a score from 0-10 on how bad it would be to sign it. To head off the objections: no, it would never be perfect. Yes, there is some risk. But it could be way better for 99% of the population that doesn't read anything they sign.