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AIHOT · Published November 10, 2026 at 03:00

LangChain explains how evaluation-driven development improves AI agents

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LangChain introduces evaluation-driven development (EDD) in its blog, adapting test-driven development (TDD) to measure agent performance with consistent metrics and guide iteration through three steps: defining what constitutes a good result, writing evaluations before building, and comparing experiments after modifications.

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