I have code that checks the validity of the file paths. If you input or output paths contain spaces or other flotsam, then the tool will not produce any results. Why? Too many questions where file paths are the problem. I won't 'enable' the current practice
You can copy the contents of the folder on my GitHub pages. No fancy install, just create a folder, throw the stuff in, load the toolbox and give it a try.
Got any geometry related or analysis tools you need implemented? let me know