LangChain's Harrison Chase ships a skill for building agent evals iteratively

hwchase17 · x · 2026-08-25

LangChain founder Harrison Chase shares his thinking on the easiest way to create agent evals and announces a new skill to support this iterative process. The accompanying article, "How we Build Agent Environments & Tasks," is a practical guide to creating synthetic agent environments and tasks, resulting in a two-step pipeline that builds from traces, code, and/or human input first, then iterates.

Related event: LangChain Open-Sources Eval-Engineering Skill for Agent Evaluation(3 posts)→

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