a;</a></h3> <p>PATs are JSON Web Tokens (JWTs) that are issued by web services to AI agents after the agents have agreed to the service's policies. PATs serve as both authentication and authorization tokens, containing claims about the identity of the AI agent and the permissions granted to it.</p> <h4 id=211-pat-structure>2.1.1 PAT Structure<a class=headerlink href=#211-pat-structure title="Permanent link">&para;</a></h4> <p>PATs are structured as JWTs with the following claims:</p> <ul> <li><strong>iss</s