Mar 5
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Check out the detailed blog with code: https://krishcnaik.substack.com/p/guardrails-with-langchain-a-complete?r=6ah1nv&utm_campaign=post&utm_medium=web&triedRedirect=true In this crash course, we will cover everything you need to know about implementing guardrails in LangChain agents -- from simple keyword filters to production-grade layered middleware stacks. By the end, you will have built a fully guarded healthcare chatbot with PII detection, content filtering, human-in-the-loop approval, and output safety validation. Here is what we will cover: What are Guardrails and why do they matter? Two approaches: Deterministic vs Model-based Built-in: PII Detection Middleware Built-in: Human-in-the-Loop Middleware Custom: Before-Agent Guardrail (input filtering) Custom: After-Agent Guardrail (output safety) Layered / Combined Guardrails Real-World Use Case: Healthcare Chatbot Visit krishnaik.in for Live courses