Such an agreement must include the following:

-Saudi Arabia recognises Israel

-Israel makes concessions to Palestinians

-The US offers Saudi Arabia security guarantees

-The US offers Saudi Arabia civilian nuclear aid

As reported by WSJ

If a historic agreement is reached that fulfills the spirit of this question but not the exact criteria, I will resolve to 50%

https://www.wsj.com/articles/u-s-saudi-arabia-agree-to-broad-terms-for-israel-normalization-ac6d549c?st=c1p0pbpoei677gl&reflink=article_copyURL_share

U.S.-Saudi Deal Sets Path to Normalize Ties With Israel

Officials are now hammering out the details of a deal they hope to cement in the next nine-to-12 months, though many obstacles remain