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mcp/harbor
LangChain

nervous system for LangChain

io.github.levelsofself/nervous-system

Governance for LLM agents: 7 enforced rules + read-only reference tools. Safe in any MCP client.

client:LangChain transport:stdio runtime:npm

Install nervous system in LangChain

pip install langchain-mcp-adapters 

from langchain_mcp_adapters.client import MultiServerMCPClient

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

tools = await client.get_tools()

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

nervous system in other clients

nervous system MCP server