custom_shelf/shelves/README.md

How to add scripts

Create a folder for the tab category of your scripts and a subfolder for the panel label and place your .py inside so they can be displayed in the Sidebar

Structure : shelves / sidebar_tab_name / panel_name / button_name.py

example

with: shelves/dev/custom_tools/fix_objects.py

The place in interface is Dev tab > Custom Tools panel > button Fix Objects