Six Principles for Agent Systems That Don't Hallucinate

Short summary

Production agent systems fail due to hallucinations, non-reproducibility, and knowledge loss—problems solved at the architecture level, not the model. Six design principles—explicit contracts, multi-role agent separation, validation layers, and knowledge bases—improved an E2E testing system from 14% to 95% pass rate. These principles generalize across code review, refactoring, security audits, and content moderation.

• •Production agent failures stem from architectural problems, not model limitations
• •Six design principles improved pass rates from 14% to 95% in real E2E testing system
• •Patterns apply across security audits, refactoring, code review, and content moderation

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