LLM Guardrails is a set of guidelines, policies or filters designed to prevent large language models (LLMs) from generating harmful, misleading or irrelevant content. The guardrails can also be used to safeguard LLM applications from malicious users attempting to misuse the system with techniques like input manipulation. They act as a safety net by setting boundaries for the model to process and generate content. There are some emerging frameworks in this space like NeMo Guardrails, Guardrails AI and Aporia Guardrails our teams have been finding useful. We recommend every LLM application have guardrails in place and that its rules and policies be continuously improved. Guardrails are crucial for building responsible and trustworthy LLM chat apps.