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fix(multi-agent): defensive message extraction on subagent task return

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CREDO23 2026-05-05 22:52:03 +02:00
parent 07a84d1a41
commit 997d860790
1 changed files with 10 additions and 3 deletions
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13
surfsense_backend/app/agents/multi_agent_chat/middleware/main_agent/checkpointed_subagent_middleware/task_tool.py
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@ -69,9 +69,16 @@ def build_task_tool_with_parent_config(
raise ValueError(msg) raise ValueError(msg)
state_update = {k: v for k, v in result.items() if k not in EXCLUDED_STATE_KEYS} state_update = {k: v for k, v in result.items() if k not in EXCLUDED_STATE_KEYS}
message_text = ( messages = result["messages"]
result["messages"][-1].text.rstrip() if result["messages"][-1].text else "" if not messages:
) msg = (
"CompiledSubAgent returned an empty 'messages' list. "
"Subagents must produce at least one message so the parent has "
"output to forward back to the user."
)
raise ValueError(msg)
last_text = getattr(messages[-1], "text", None) or ""
message_text = last_text.rstrip()
return Command( return Command(
update={ update={
**state_update, **state_update,