'Add guardrails' is hand-wavy. The strong answer names the concrete input and output checks, the mechanisms that enforce them, and the fail-safe behavior when one trips, plus the honesty that they are imperfect. Here is the implementation answer.
Updated Aug 2026 · Grounded in real Applied AI Engineer interview loops and written to a senior-engineer editorial bar.
'Add guardrails' is hand-wavy. The strong answer names the concrete input and output checks, the mechanisms that enforce them, and the fail-safe behavior when one trips, plus the honesty that they are imperfect. Here is the implementation answer.
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