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fix(multiagent): set empty text part data in parts for Artifact #1643

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fix(multiagent): set empty text part data in parts for Artifact #1643

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5 changes: 2 additions & 3 deletions src/strands/multiagent/a2a/executor.py
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Original file line number Diff line number Diff line change
Expand Up @@ -191,16 +191,15 @@ async def _handle_agent_result(self, result: SAAgentResult | None, updater: Task
if self.enable_a2a_compliant_streaming:
if self._is_first_chunk:
final_content = str(result) if result else ""
parts = [Part(root=TextPart(text=final_content))] if final_content else []
await updater.add_artifact(
parts,
[Part(root=TextPart(text=final_content))],
artifact_id=self._current_artifact_id,
name="agent_response",
last_chunk=True,
)
else:
await updater.add_artifact(
[],
[Part(root=TextPart(text=""))],
artifact_id=self._current_artifact_id,
name="agent_response",
append=True,
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