You can quickly scan and understand what level of access is being granted by profiles or permission sets in your Org. You can use that to both plan your permission optimization and quickly understand what a given profile or permission set does.
Prerequisites
You must be on Enterprise license or have a consulting space
You must have a synced Org Model
View access to the Org Model within Elements app
Scheduled batch job in the managed package to get profile data
Report on access given by profiles and permission sets
To understand what permissions are granted by profiles and permission sets in your Org, and to understand which ones may be granting too many permissions, run the access categories report. To do that:
Open the Org model app
Click on a report icon in the top right corner of the screen.
Click to run a new report.
Choose Profile/Permission set Access Categories from the dropdown.
When the report is ready, click on the notification from the report icon.
The report will list every profile and permission set in the Org as rows and every category of permissions as a columns (e.g. object permissions, field permissions etc.) The numbers in cell indicate how many metadata are accessible using that permission controller.
For instance, if a profile shows 609 field permissions, that means it grants access to a total of 609 fields in the Org.
Review access granted by a given profile or permission set
Using Elements.cloud application, you can analyze what permissions are being granted by each profile or permission set.
To see which permissions are being granted by a profile or permission set:
Find the right metadata component in your Org model
Open the 'Optimize' tab in the right pane
Click 'Analyze access' button at the top of the panel
You will see a grid of types of permissions (e.g. object permissions) and a number (e.g. 7). That number indicates how many permissions of that type are being granted.
Click on the number to drill down and see the concrete, alphabetically sorted list of metadata and level of access granted by the selected profile or permission set