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Amazon Bedrock AgentCore's Nine-Stage Eval Framework: How AWS Catches Silent Agent Quality Regressions Before Production

This story is from 2026-10-18. It is preserved in the archive; the latest stories are on the live feed.

Autonomous agents fail in ways traditional software does not. Your API returns 200, latency holds steady at p95, and error rates stay flat. But the agent is now hallucinating tool parameters, skipping retrieval steps, or confidently returning wrong answers. AWS calls this "silent quality erosion,"…

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  1. 2026-10-18 00:07 · DEV Community — AI
    Amazon Bedrock AgentCore's Nine-Stage Eval Framework: How AWS Catches Silent Agent Quality Regressions Before Production

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