Two people can ask an assistant to help with email and mean different things. One wants drafts to review. Another is comfortable with automatic replies to familiar contacts. The task description gives the agent a goal. A permission system determines which actions it may take to get there.
Alexandra Michael and Franziska Roesner surveyed 21 proposals for user-level agent permissions and compared them with five commercial agents. Their framework separates how permissions are written or inferred from how the system enforces them. The researchers found gaps in transparency, usability and user control.
That distinction makes a product claim easier to examine. A setting can be easy to describe in the interface and still be difficult to enforce once an agent starts using tools. The survey gives readers a vocabulary for asking about both parts.