[Bug]MCP超时时间似乎对SubAgent未生效

[naer-lily]

What happened / 发生了什么

我使用 https://github.com/u14app/deep-research 这个 MCP 服务器去进行深度搜索，将它提供的tool提供且仅提供给一个专用于SubAgent的人格并配置为SubAgent，然后发现该SubAgent执行过程中报下面的异常。

这个MCP服务器的文档要求将超时时间设置地很长，我将所有超时时间都设置地很长，但日志里的异常提示似乎mcp_client的超时时间仍旧是60秒？下面是我配置的各个超时时间：

// MCP 服务器定义
{
  "transport": "streamable_http",
  "url": "http://deep-research:3000/api/mcp",
  "headers": {},
  "timeout": 3600,
  "sse_read_timeout": 3600
}

// Provider
  "provider_sources": [
    {
      "provider": "deepseek",
      "type": "openai_chat_completion",
      "provider_type": "chat_completion",
      "key": [
        "XXXXX"
      ],
      "api_base": "https://api.deepseek.com/beta",
      "timeout": 120,
      "proxy": "",
      "custom_headers": {},
      "id": "deepseek",
      "enable": true
    },

// 工具调用超时
    "tool_call_timeout": 1500,

Reproduce / 如何复现？

1. 部署该MCP服务器
2. 在astrbot配置增加该MCP服务器，并仅让一个人格能使用它提供的工具
3. 使用这个人格创建一个SubAgent
4. 让主人格调用这个SubAgent进行信息汇聚任务
5. 观察到日志中出现报错

AstrBot version, deployment method (e.g., Windows Docker Desktop deployment), provider used, and messaging platform used. / AstrBot 版本、部署方式（如 Windows Docker Desktop 部署）、使用的提供商、使用的消息平台适配器

4.20.1 Docker deepseek/deepseek-reasoner

OS

Linux

Logs / 报错日志

astrbot  | [00:22:09.542] [Core] [INFO] [runners.tool_loop_agent_runner:657]: Agent 使用工具: ['generate-SERP-query']
astrbot  | [00:22:09.542] [Core] [INFO] [runners.tool_loop_agent_runner:703]: 使用工具：generate-SERP-query，参数：{'plan': '国内主流大模型定价和多模态能力对比：阿里云、百度、字节跳动、腾讯、华为、智谱AI、月之暗面、零一万物等厂商的模型定价、多模态支持能力、上下文长度等信息', 'language': '中文'}
astrbot  | [00:23:09.548] [Core] [WARN] [v4.20.1] [runners.tool_loop_agent_runner:858]: Traceback (most recent call last):
astrbot  |   File "/usr/local/lib/python3.12/site-packages/anyio/streams/memory.py", line 117, in receive
astrbot  |     return self.receive_nowait()
astrbot  |            ^^^^^^^^^^^^^^^^^^^^^
astrbot  |   File "/usr/local/lib/python3.12/site-packages/anyio/streams/memory.py", line 112, in receive_nowait
astrbot  |     raise WouldBlock
astrbot  | anyio.WouldBlock
astrbot  |
astrbot  | During handling of the above exception, another exception occurred:
astrbot  |
astrbot  | Traceback (most recent call last):
astrbot  |   File "/usr/local/lib/python3.12/site-packages/anyio/_core/_tasks.py", line 124, in fail_after
astrbot  |     yield cancel_scope
astrbot  |   File "/usr/local/lib/python3.12/site-packages/mcp/shared/session.py", line 292, in send_request
astrbot  |     response_or_error = await response_stream_reader.receive()
astrbot  |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
astrbot  |   File "/usr/local/lib/python3.12/site-packages/anyio/streams/memory.py", line 125, in receive
astrbot  |     await receive_event.wait()
astrbot  |   File "/usr/local/lib/python3.12/site-packages/anyio/_backends/_asyncio.py", line 1789, in wait
astrbot  |     await self._event.wait()
astrbot  |   File "/usr/local/lib/python3.12/asyncio/locks.py", line 212, in wait
astrbot  |     await fut
astrbot  | asyncio.exceptions.CancelledError: Cancelled via cancel scope 762e84243440; reason: deadline exceeded
astrbot  |
astrbot  | During handling of the above exception, another exception occurred:
astrbot  |
astrbot  | Traceback (most recent call last):
astrbot  |   File "/usr/local/lib/python3.12/site-packages/mcp/shared/session.py", line 291, in send_request
astrbot  |     with anyio.fail_after(timeout):
astrbot  |          ^^^^^^^^^^^^^^^^^^^^^^^^^
astrbot  |   File "/usr/local/lib/python3.12/contextlib.py", line 158, in __exit__
astrbot  |     self.gen.throw(value)
astrbot  |   File "/usr/local/lib/python3.12/site-packages/anyio/_core/_tasks.py", line 127, in fail_after
astrbot  |     raise TimeoutError
astrbot  | TimeoutError
astrbot  |
astrbot  | During handling of the above exception, another exception occurred:
astrbot  |
astrbot  | Traceback (most recent call last):
astrbot  |   File "/AstrBot/astrbot/core/agent/runners/tool_loop_agent_runner.py", line 757, in _handle_function_tools
astrbot  |     async for resp in executor:  # type: ignore
astrbot  |   File "/AstrBot/astrbot/core/astr_agent_tool_exec.py", line 145, in execute
astrbot  |     async for r in cls._execute_mcp(tool, run_context, **tool_args):
astrbot  |   File "/AstrBot/astrbot/core/astr_agent_tool_exec.py", line 642, in _execute_mcp
astrbot  |     res = await tool.call(run_context, **tool_args)
astrbot  |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
astrbot  |   File "/AstrBot/astrbot/core/agent/mcp_client.py", line 394, in call
astrbot  |     return await self.mcp_client.call_tool_with_reconnect(
astrbot  |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
astrbot  |   File "/AstrBot/astrbot/core/agent/mcp_client.py", line 357, in call_tool_with_reconnect
astrbot  |     return await _call_with_retry()
astrbot  |            ^^^^^^^^^^^^^^^^^^^^^^^^
astrbot  |   File "/usr/local/lib/python3.12/site-packages/tenacity/asyncio/__init__.py", line 193, in async_wrapped
astrbot  |     return await copy(fn, *args, **kwargs)
astrbot  |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
astrbot  |   File "/usr/local/lib/python3.12/site-packages/tenacity/asyncio/__init__.py", line 112, in __call__
astrbot  |     do = await self.iter(retry_state=retry_state)
astrbot  |          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
astrbot  |   File "/usr/local/lib/python3.12/site-packages/tenacity/asyncio/__init__.py", line 157, in iter
astrbot  |     result = await action(retry_state)
astrbot  |              ^^^^^^^^^^^^^^^^^^^^^^^^^
astrbot  |   File "/usr/local/lib/python3.12/site-packages/tenacity/_utils.py", line 111, in inner
astrbot  |     return call(*args, **kwargs)
astrbot  |            ^^^^^^^^^^^^^^^^^^^^^
astrbot  |   File "/usr/local/lib/python3.12/site-packages/tenacity/__init__.py", line 393, in <lambda>
astrbot  |     self._add_action_func(lambda rs: rs.outcome.result())
astrbot  |                                      ^^^^^^^^^^^^^^^^^^^
astrbot  |   File "/usr/local/lib/python3.12/concurrent/futures/_base.py", line 449, in result
astrbot  |     return self.__get_result()
astrbot  |            ^^^^^^^^^^^^^^^^^^^
astrbot  |   File "/usr/local/lib/python3.12/concurrent/futures/_base.py", line 401, in __get_result
astrbot  |     raise self._exception
astrbot  |   File "/usr/local/lib/python3.12/site-packages/tenacity/asyncio/__init__.py", line 116, in __call__
astrbot  |     result = await fn(*args, **kwargs)
astrbot  |              ^^^^^^^^^^^^^^^^^^^^^^^^^
astrbot  |   File "/AstrBot/astrbot/core/agent/mcp_client.py", line 343, in _call_with_retry
astrbot  |     return await self.session.call_tool(
astrbot  |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
astrbot  |   File "/usr/local/lib/python3.12/site-packages/mcp/client/session.py", line 383, in call_tool
astrbot  |     result = await self.send_request(
astrbot  |              ^^^^^^^^^^^^^^^^^^^^^^^^
astrbot  |   File "/usr/local/lib/python3.12/site-packages/mcp/shared/session.py", line 294, in send_request
astrbot  |     raise McpError(
astrbot  | mcp.shared.exceptions.McpError: Timed out while waiting for response to ClientRequest. Waited 60.0 seconds.
astrbot  |
astrbot  | [00:23:09.548] [Core] [INFO] [runners.tool_loop_agent_runner:881]: Tool `generate-SERP-query` Result: error: Timed out while waiting for response to ClientRequest. Waited 60.0 seconds.

Are you willing to submit a PR? / 你愿意提交 PR 吗？

• Yes!

Code of Conduct

• I have read and agree to abide by the project's Code of Conduct。

[dosubot]

这确实是一个已知的 Bug。问题的根本原因是 SubAgent 执行时没有传递 tool_call_timeout 参数，导致始终使用硬编码的 60 秒默认值。

具体问题位置：在 astrbot/core/astr_agent_tool_exec.py 的 _execute_handoff() 方法中，调用 ctx.tool_loop_agent() 时正确传递了 max_agent_step 和 streaming_response，但遗漏了 tool_call_timeout。

这与之前修复的 PR #5608（SubAgent 未继承 max_agent_step）和 PR #5348（SubAgent 未继承 streaming_response）属于同一类问题。

注意：您配置的 MCP 服务器 timeout: 3600 是连接超时，而非工具调用超时。工具调用超时由 provider_settings.tool_call_timeout 控制，但目前该配置对 SubAgent 不生效。

已有用户在 Issue #6671 中报告了相同的问题。

To reply, just mention @dosu.

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