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Harness Tuner: Eval-Driven Loops Turn Agent Tuning from Guesswork into Measurement

Most agent tuning happens in a loop: tweak the prompt, run it manually, check the output, repeat. Harness Tuner replaces that manual cycle with an automated optimization loop that plans experiments, measures performance on a training set, validates on a held-out set, and never touches the test set…

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  1. 2026-11-14 00:08 · DEV Community — AI
    Harness Tuner: Eval-Driven Loops Turn Agent Tuning from Guesswork into Measurement

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