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docs: clarify MCP pooling applies only to stdio tools

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Co-authored-by: WillemJiang <219644+WillemJiang@users.noreply.github.com>
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copilot-swe-agent[bot]
2026-05-26 02:07:35 +00:00
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parent edeaa84563
commit ab2c7d07a5
1 changed files with 5 additions and 3 deletions
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backend/packages/harness/deerflow/mcp/tools.py
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@@ -1,4 +1,4 @@
"""Load MCP tools using langchain-mcp-adapters with persistent sessions."""
"""Load MCP tools using langchain-mcp-adapters with stdio session pooling."""
from __future__ import annotations
@@ -173,8 +173,10 @@ def _make_session_pool_tool(
async def get_mcp_tools() -> list[BaseTool]:
"""Get all tools from enabled MCP servers.
Tools are wrapped with persistent-session logic so that consecutive
calls within the same thread reuse the same MCP session.
Tools using stdio transport are wrapped with persistent-session logic so
consecutive calls within the same thread reuse the same MCP session.
HTTP/SSE tools are returned unwrapped to avoid cross-task TaskGroup
cleanup errors.
Returns:
List of LangChain tools from all enabled MCP servers.