Someone please make a mod where you can see the hit box for backstabbing.

I’m a spy main, but I accidentally messed my muscle memory somehow and now I can’t get a back stab even to save my own life. Using the new SDK that just came out, can someone create a mod where it makes it so then when you choose the spy class, there is a transparent box on the back of enemies that has the exact same parallels as the back stab hit box. Also, to make it fair, please only have it work and visibly obvious enemies, so then I can’t immediately tell if a spy is disguised as a teammate.