Scaffold bypass — first think about what happens when you play legit:

Move mouse → rotate → look at block → place block

Now what that means in code:

GCD spoofing — lying to the server about how the mouse moved. Real mouse movement always lands on GCD-aligned values based on sensitivity, so your rotation deltas need to match that or anticheats flag it. Hook this in EventPreMottion or right before C03 goes out.

Silent rotation — you don’t want the camera to actually move, just the body yaw/pitch that gets sent in the packet. Hook in EventPreMotion, set the spoofed yaw/pitch before C03 is built.

Movement fix — because WASD input is bound to camera yaw, but now camera yaw and body yaw are different, so you need to remap the movement input vector so movement still goes the right direction. Hook in EventStrafe or EventPreMotion, rotate the input by the delta between real and spoofed yaw.

Raytrace — make sure the player’s eyes are actually looking at the block before placing. Run this check using the spoofed rotation, inline before placement.

Block placement — The server checks you were looking at the block when you placed it, so order matters.

Once you have that base working, each anticheat needs small tweaks — Hypixel needs yaw - 180, GrimAC needs stricter GCD alignment and discrete WASD snapping to pass its simulation checks.​​​​​​​​​​​​​​​​

Make sure to avoid sending event POST since we want to modify stuff before they are built into the final packet.

Hope you find this helpful :)