It seems that a few recent posts included the recurring request to look for open paths. So, I threw together this quick script to show glyphs with open paths. Some assumptions were made (and it hasn’t been tested with masters and instances), so it may not work in all cases. But, it should show which glyphs (and glyph layer) have open paths.
The Audits/check-for-open-paths.py script is in this repository: