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LangChain

AgentDiet A2A Indirect Prompt-Injection & Jailbreak Firewall for LangChain

dev.agentdiet/prompt-guard

Scans untrusted web pages, emails, MCP responses, or A2A payloads for hidden prompt injections an.

client:LangChain transport:streamable-http tools:2

Install AgentDiet A2A Indirect Prompt-Injection & Jailbreak Firewall in LangChain

pip install langchain-mcp-adapters

from langchain_mcp_adapters.client import MultiServerMCPClient

client = MultiServerMCPClient({
        "prompt-guard": {
            "transport": "streamable_http",
            "url": "https://prompt-guard.agentdiet.dev/mcp",
        }
})

tools = await client.get_tools()

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

What LangChain can do once it is connected

AgentDiet A2A Indirect Prompt-Injection & Jailbreak Firewall in other clients