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System Design for AI in Production / 16

Design an AI code review system that comments on pull requests.

AI code review lives or dies on precision: a few noisy comments and the team mutes the bot forever. The signal is grounding in the diff plus repo context, ruthless false-positive control, and earning developer trust one accepted comment at a time.

Updated Aug 2026 · Grounded in real Applied AI Engineer interview loops and written to a senior-engineer editorial bar.

AI code review lives or dies on precision: a few noisy comments and the team mutes the bot forever. The signal is grounding in the diff plus repo context, ruthless false-positive control, and earning developer trust one accepted comment at a time.

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