I applied an animation modifier to a skeleton. This modifier computes an editable variable from the skeleton bones. How to reach this variable in all the animation blueprint built with this skeleton?
Animation modifier properties are used to modify animations only. It can’t be accessed by other systems. If you compute a transform and you want your AnimBP to know about it somehow, you’ll have to make this transform something in your animation. You could create a new anim curve with your modifier and save the transform as a key in that curve. Then read the curve’s value in the AnimBP.