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Defend a high-stakes generation pipeline against jailbreaks and hallucination at the same time.

Two failure modes, one architecture. Why no single guardrail holds, the defense-in-depth layers that assume the model will be broken, and the design rule that limits the blast radius when prompt filters inevitably fail.

Updated Sep 2026 · Grounded in real Forward Deployed Engineer interview loops and written to a senior-engineer editorial bar.

Two failure modes, one architecture. Why no single guardrail holds, the defense-in-depth layers that assume the model will be broken, and the design rule that limits the blast radius when prompt filters inevitably fail.

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