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5. AgentBackendEventExecToolCall

An event sent from the agent backend to the client during an agent task execution.

Properties

• tool_call_id string required
  Tool call identifier.
• name string required
  Tool name.
• execution_mode enum optional
  Where this tool call is being executed. Omitted means this is an informational event about a cloud or CLI execution already covered by the containing assistant message. When set to ‘worker’, this event is the brain dispatching a cleared worker tool call: the service enqueues it for the task’s managed worker to pick up.
  Values: cloud, cli, worker
• args map[string]object optional
  Tool arguments. Present exactly when execution_mode is ‘worker’.
• timestamp string required
  When the event occurred.
• type string required