The Prevent Item By Path validator ensures that items are not created at or beneath an item. The items to validate are defined in the Additional Properties field.

There are no default Additional Properties for this validator.

The paths of the items to validate should be entered into the Additional Properties field. 

When specifying the items that should be checked it is possible to include or exclude the target item. For example give the following path:

/Sitecore/templates

This will check the templates item plus all descendantitems. If a forward slash is added to the end of the path, e.g:

/Sitecore/templates/

This will check just the descendant items of the templates item but not the templates item itself.