Sub-agent session events carry only the innermost agentId on the event envelope. When sub-agents nest, a consumer receiving the event stream cannot reconstruct parent-of relationships — there is no field linking a sub-agent to the agent that spawned it.
Today a consumer has to infer the parent indirectly, by correlating each sub-agent's id with the id of the tool call that started it. That works but is fragile and couples consumers to an implementation detail.
Request: add an explicit optional parentAgentId to the session-event envelope — absent for top-level/root agents, set to the spawning agent's id for nested sub-agents — so parent chains are recoverable directly from the event stream.
Sub-agent session events carry only the innermost
agentIdon the event envelope. When sub-agents nest, a consumer receiving the event stream cannot reconstruct parent-of relationships — there is no field linking a sub-agent to the agent that spawned it.Today a consumer has to infer the parent indirectly, by correlating each sub-agent's id with the id of the tool call that started it. That works but is fragile and couples consumers to an implementation detail.
Request: add an explicit optional
parentAgentIdto the session-event envelope — absent for top-level/root agents, set to the spawning agent's id for nested sub-agents — so parent chains are recoverable directly from the event stream.