Skin Cage

Move Red SkinCurves sets curve width from the local geometry thickness.
Deform Skin Cage Deformation Width
Moves the red SkinCurves to “DeformationWidth”.

“DeformationWidth” is the average of the height and width of the geometry at any profile curve.
By doing this, the length from the start to end of the deformation at any of the joints matches the thickness of the geometry.