Policy checks, jailbreak defense, PII scrub, and hallucination gates — layered safety.
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Guardrails for LLM apps: how do you implement input/output safety in 2025?
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01
Understand the problem
guardrailssafety
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Attempt it yourself
Sketch your approach before reading the solution — that's what interviews test.
Nudge consolestandby
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Guardrails are middleware before and after the LLM: input (prompt injection, PII, policy) + output (toxicity, grounding, schema). Use deterministic + classifier layers with fail-closed defaults.
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