DEPRECATED. Use recipient and recipientType instead.
expiresAtstring date-time
topicstring
agentsstring[]
IDs of the AI agents involved in this engagement.
mainAgentstring
ID of the primary AI agent driving this engagement.
engagementSettingstring
ID of the EngagementSetting (voice/language preset) used for this engagement.
contextobject
Initial context provided to the engagement, used for outbound flows. Keys must correspond to AgentContextVariable names, and values must conform to that variable's schema.