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What is Guardrails?
Also called: Safety rules
Guardrails are safety rules around an AI. They prevent unwanted answers or actions.
Example
A support bot may not promise discounts and passes such questions to a person.
For pros
Guardrails work on several layers: in the model, in the system prompt, as input and output filters and as tool permissions. No single layer is safe on its own.
Sources: DOI 10.6028/NIST.AI.600-1 , Wikipedia · Checked on 19 October 2026
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