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hardNewOpenAIAnthropicCognition

An agent's patch passed CI. After rebasing, it still shows green but breaks the feature. What evidence did you lose?

Diagnose a release that reused valid results for the wrong artifact. Trace candidate, evaluator and environment identities, preserve incomplete outcomes, and repair the acceptance path without blaming the model for an integration defect.

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

Diagnose a release that reused valid results for the wrong artifact. Trace candidate, evaluator and environment identities, preserve incomplete outcomes, and repair the acceptance path without blaming the model for an integration defect.

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FEDITOR'S NOTE

An authored design exercise, not a reported company interview. Look for evidence binding and integration identity before proposals to change the prompt. A trusted old result can still be irrelevant to the artifact being released.

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