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LangChain

agent guardrail for LangChain

io.github.rudimentall1/agent-guardrail

Deterministic policy firewall for AI agent tool calls - YAML rules, not a fuzzy risk score.

client:LangChain transport:stdio runtime:pypi

Install agent guardrail in LangChain

pip install langchain-mcp-adapters

from langchain_mcp_adapters.client import MultiServerMCPClient

client = MultiServerMCPClient({
        "agent-guardrail": {
            "transport": "stdio",
            "command": "uvx",
            "args": ["guardrail-mcp"],
        }
})

tools = await client.get_tools()

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

agent guardrail in other clients