You know that 2 blocks that always get in your way when you're exploring? Normally you have to either place a block under you or find another way to get past them.
Well, not anymore!

This simple datapack allows you to climb these 2 blocks, as well as making more risky jumps and giving you more movement abilities.
Simply get close to a wall up to 3 blocks height, press shift to sneak and you will be pushed over to the other side.