"Send test event" on the Webhooks page creates a real test order whose callbackUrl is your own relay URL, exactly like rivr trigger, and the Created webhook shows up in the list within seconds. Relay URLs are masked wherever someone other than their owner could see them.
This page needs JavaScript. The same content is available as Markdown: /changelog/2026-10-17-send-test-event.md. Every document for agents is listed in /llms.txt.