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fix: AgentTool returns last content, instead of the content in the last event #2745

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Merged
copybara-service merged 1 commit into from
Aug 27, 2025
Merged

fix: AgentTool returns last content, instead of the content in the last event #2745

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9 changes: 5 additions & 4 deletions src/google/adk/tools/agent_tool.py
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Original file line number Diff line number Diff line change
Expand Up @@ -139,7 +139,7 @@ async def run_async(
state=tool_context.state.to_dict(),
)

last_event = None
last_content = None
async with Aclosing(
runner.run_async(
user_id=session.user_id, session_id=session.id, new_message=content
Expand All @@ -149,11 +149,12 @@ async def run_async(
# Forward state delta to parent session.
if event.actions.state_delta:
tool_context.state.update(event.actions.state_delta)
last_event = event
if event.content:
last_content = event.content

if not last_event or not last_event.content or not last_event.content.parts:
if not last_content:
return ''
merged_text = '\n'.join(p.text for p in last_event.content.parts if p.text)
merged_text = '\n'.join(p.text for p in last_content.parts if p.text)
if isinstance(self.agent, LlmAgent) and self.agent.output_schema:
tool_result = self.agent.output_schema.model_validate_json(
merged_text
Expand Down