How to reliably detect whether the current user is a Jira "guest" (from a Forge app)?

I don’t know of an officially supported “is guest” flag, and I wouldn’t build on userAccess.hasAccess while enabled is false. The user-based billing docs only define it once an app opts in, so today’s values could change without notice. What has worked for me is to stop asking “is this a guest?” and ask what you actually need to gate: “can this user do X here?” Jira already answers that per user and per issue or project: GET /rest/api/3/mypermissions?projectKey=ABC&permissions=BROWSE_PROJECTS,ADD_COMMENTS,CREATE_ISSUES Call it with requestJira from the frontend, or asUser() in a resolver, and