Securing Your LangChain Agent in 5 Minutes with ClawMoat

Your AI agent is powerful. Let's make sure it's not also a liability. You've built a LangChain agent. It can search the web, query databases, send emails, and execute code. It's brilliant. It's also a prompt injection attack waiting to happen. Every time your agent processes untrusted input — user messages, web search results, retrieved documents, API responses — an attacker can hijack its behavior. OWASP ranks prompt injection as the #1 LLM security risk for good reason. ClawMoat is an open-source npm package that adds a security layer to your AI agent in minutes. No PhD required. What You'll Build A LangChain agent with: ✅ Prompt injection detection on all inputs ✅ Data exfiltration prevention on outputs ✅ Tool call validation before execution ✅ Configurable security policies Prerequisites Node.js 18+ An existing LangChain.js project (or we'll create one) An OpenAI API key Step 1: Install ClawMoat npm install clawmoat @langchain/openai @langchain/core Step 2: Set Up Your Agent (Witho