Ask to join: Beginner bouldering evening (Beginner climbing evenings) at Grip Sluppen, next on 2026-11-05T18:00:00+01:00. It asks to join the activity, all its dates, not one evening.
Opening this saved nothing. Every person and group in this lab is synthetic: nobody is contacted. The request stays pending until a steward of this lab accepts or declines it; the answer and any words show on its status page.
The person confirms in a browser on this page, or an AI they asked sends: POST https://fathom-lab-door.fly.dev/joins with spaceId=space-7&activityId=activity-7 (optional name: a first name or nickname, seen only by the steward).
The link you get after asking will show accepted or declined, with the host's words if they left any. Keep it private; paste it back to your AI or open it later.