A Straight Skeleton, or Medial Axis is a method of defining an internal center line or skeleton for a mesh.
There are several applications for this technique, from UVs, Destruction, Growth Solvers and Joint Generation.
You can use a Facet with the Remove Inline Points option to thin out the points
Resolution of the Volume that the input mesh is converted into
Number of times the solver with shrink the mesh
Threshold for collapsing nearby points together.