ID of the calling node
Matches the toolUseId of AgentToolStarted
Identifier of the Agent being called
succeeded / failed
Start time, Unix timestamp in seconds
Total duration in seconds
Error description on failure
Call arguments as a JSON string
OptionaloutputsResult of the delegated Agent
Tool category
Progress text; may be omitted
Short tags; may be omitted
true if during the thinking phase
Payload of an
agent_tool_finishedstream event