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How Do You Know Your AI Agent Is Wrong? Evaluation for Java Backends

This story is from 2026-10-27. It is preserved in the archive; the latest stories are on the live feed.

A user reports that your agent gave them wrong information. You check the logs — the tool calls look correct, the model returned a response, no exceptions were thrown. Everything ran, but the answer was bad. This is the hardest problem in AI backend development. The agent doesn't crash when it's wr…

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  1. 2026-10-27 14:30 · DEV Community — AI
    How Do You Know Your AI Agent Is Wrong? Evaluation for Java Backends

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