Roles and permission groups for AI Agent users

Summary:

What are the minimum permission groups, privileges needed for end users of AI Agent

Content (please ensure you mask any confidential information):

Hi

We have a lot of users who have access to Self Service Procurement page, and we have enabled the AI agents for example procurement policy advisor.

As per documentation we need to create a custom role and assign it to all users who want to access this agent form Self Service Procurement page.(End Users )

However, its not very clear what are the bare minimum permission groups, roles and privileges needed to give to the end user.