@picnicNotion API: How to Mention and Assign a Custom Agent by IDNotionAPIAILLMAutomation0Posted at 2026-11-10 Introduction With the Notion API update on November 10, 2026, you can now mention a shared Custom Agent in rich text by agent ID or bot user ID, or assign it to a people property. Either operation may trigger an agent run. At the time of the initial release (November 9), assignment required a bot user ID, and mentions in rich text returned a valid