工作GITHUB MCP代码
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带MCP适配器-自动转换
tools=等待load_mcp_tools（会话）#✅ MCP → LangChain转换完成！
无适配器（手动方式）：
手动转换-您编写包装器
for t in mcp_tools:
# Build Pydantic schema
# Create wrapper function
# Create StructuredTool
# Add to tools list______________________________________________________________________
load_mcp_tools在内部做什么：
Calls session.list_tools() to get MCP tool definitions
Converts JSON schemas → Pydantic models
Creates async wrapper functions that call session.call_tool()
Wraps in StructuredTool objects
Returns list of LangChain tools ready to use