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Add optional `parentAgentId` to the session-event envelope for nested sub-agents

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#1,731 0 comments 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty
3/5
Estimated time
1-2 days
Newbie friendliness
58/100
Issue type
Feature
Clarity
Mostly clear
Activity status
Quiet
Tech stack
java
Domain
api

Research direction

No file or test is named in the issue; start by locating the session-event envelope definition and the code that creates nested sub-agent events. Trace how the spawning agent id is available, then verify that root events omit parentAgentId, nested events include it, and consumers can reconstruct the parent chain from the event stream.

Written by the indexing model from the issue text.

Description

enhancement

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.

Dominant language
Java
Stars
10.5k
Forks
1.5k
Avg merge
1d 9h
Merged PRs (30d)
130

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