Trump has already taken credit, and Netanyahu will continue to credit him.

1. Netanyahu will almost certainly sign the deal. Hamas will too.
2. Netanyahu will eat a lot of political crow, especially from his rightist base.
3. Hamas will declare victory and parade through the streets of Gaza.
4. And Hamas will play by the rules as well as it possibly can.

And in the meantime, Israel will work ferociously to build out the kind of intelligence infiltration in Gaza that it possessed in Lebanon.
It will spend the ceasefire preparing the offensive Netanyahu seems to believe will be permitted him at the end of phase 1

If this is indeed Netanyahu’s calculation, then the deal he will soon sign is a reasonable gambit and a serious strategy.