来源信息
- 仓库
- vercel-labs/seal
- 最近来源活动
- 2026年7月17日 17:25
- 检测到的 SKILL.md 语言
- 英语
- 星标
- 8
- 分支
- 3
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来源说明 · 只读预览- name
- ai-python-subagents
- description
- Use for the subagent-as-a-tool pattern.
- metadata
- {"sdk-version":"0.2.1"}
# ai-python-subagents
Use a subagent tool when the parent model should choose when to call another
agent.
```python
@ai.tool
async def research(topic: str) -> ai.SubAgentTool:
child = ai.Agent(tools=[lookup])
messages = [
ai.system_message("Research briefly."),
ai.user_message(topic),
]
async with child.run(model, messages) as stream:
async for event in stream:
yield event
```
The parent model sees the child agent's final assistant text as the tool
result. The caller sees child events as `ai.events.PartialToolCallResult`.
Render nested output from `event.value`:
```python
if isinstance(event, ai.events.PartialToolCallResult):
if isinstance(event.value, ai.events.TextDelta):
print(event.value.chunk, end="", flush=True)
```
Do not append child messages to the parent history yourself. The tool result
stores the child transcript as a `MessageBundle`.
For `MessageBundle`, preliminary output, and streaming tool details, use
`ai-python-streaming-tools`.
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