A Jewish prenuptial agreement is a special kind of agreement that two people make before they get married. It's a little like a special promise they make to each other to help prevent problems if they ever decide to get divorced.
In the Jewish religion, a man is responsible for giving his wife something called a "get" if they ever get divorced. The get is like a special religious document that says the marriage is over. But sometimes, a man might not want to give his wife a get, and this can cause a lot of problems.
So, the Jewish prenuptial agreement is like a special plan to make sure that the wife gets her get even if the husband doesn't want to give it to her. The agreement says that if the husband doesn't give his wife the get, he has to pay her a certain amount of money every day until he does. This helps make sure that the wife doesn't get stuck without being able to get divorced if her husband doesn't agree to give her the get.
Overall, the Jewish prenuptial agreement is a way to help people prevent problems if they ever get divorced, and to make sure that everyone is treated fairly according to the Jewish religion.