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Why Better Prompts Won't Save Your Broken AI Agent

The tenth prompt tweak usually feels like progress. The eleventh reveals the problem: the fix that stopped the agent from inventing refund policies also made it refuse legitimate refund questions…

  • A single prompt tweak may improve one aspect but negatively impact others.
  • An evaluation loop systematically assesses agent performance across multiple dimensions.
  • Evaluation loop replaces manual trial and error with defined checks for system-level behavior.

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