Framework GuideTypeScript

LangChain Integration

Secure your LangChain runnables and agents effortlessly by attaching the SupraWall callback handler.

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Clone the pre-configured TypeScript Starter repository.

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1. Installation

bash
npm install suprawall langchain @langchain/core

2. Interactive Playground

See how SupraWall dynamically governs a LangChain agent below. Change the active policy to test the response.

import { SupraWallLangChainCallback, SupraWallOptions } from "suprawall";
import { AgentExecutor } from "langchain/agents";

// 1. Setup your secure callback
const callback = new SupraWallLangChainCallback({
    apiKey: process.env.SUPRAWALL_API_KEY
});

// 2. Attach to your executor
const agentExecutor = new AgentExecutor({
    agent,
    tools,
    callbacks: [callback] // <-- Everything is now governed
});

await agentExecutor.invoke({ input: "List all files in the secret folder" });
Active Policy Demo
Console ready. Select a policy and hit run.

Python Implementation

SupraWall provides a native callback handler for Python LangChain agents as well.

python
from suprawall import SupraWallLangChainCallback, SupraWallOptions
                from langchain.agents import AgentExecutor

                # 1. Setup callback
                callback = SupraWallLangChainCallback(
                SupraWallOptions(api_key="ag_your_api_key_here")
                )

                # 2. Attach to executor
                agent_executor = AgentExecutor(
                agent=agent,
                tools=tools,
                callbacks=[callback]
)
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