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LangChain

MCP Hook Conformance for LangChain

io.studiomeyer/hook-conformance

Audits MCP servers for Claude Code mcp_tool hook readiness: idempotency, latency, side-effects.

client:LangChain transport:stdio runtime:npm

Install MCP Hook Conformance in LangChain

pip install langchain-mcp-adapters

from langchain_mcp_adapters.client import MultiServerMCPClient

client = MultiServerMCPClient({
        "hook-conformance": {
            "transport": "stdio",
            "command": "npx",
            "args": ["-y", "mcp-hook-conformance"],
        }
})

tools = await client.get_tools()

get_tools() returns the server's tools as LangChain tools, ready for an agent. LangChain docs

MCP Hook Conformance in other clients