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Harrison Chase recommends starting agents with a harness, then adding layers

1 article1 sourcesince Oct 20Last article 58m ago ·

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Harrison Chase, LangChain's chief of agent development, says agent builders should start with a harness such as deepagents, then add context through skills and tools, according to a post on X dated October 20, 2026.

He says middleware can modify the harness if needed, and a LangGraph workflow should be built only if still necessary. He made the statement in reply to a post arguing that complex multi-step workflows built from if-else logic or LangGraph should be avoided in favor of a harness.

Written by AI from the articles below · updated Oct 20, 6:29 AM ET

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Latest developmentOct 20, 6:22 AM ET
Harrison Chase recommends starting agents with a harness, then adding layers

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Oct 20
  1. Harrison ChaseX
    Harrison Chase recommends starting agents with a harness, then adding layers

    AIHarrison Chase says agent builders should start with a harness such as deepagents, then add context through skills and tools. He says to modify the harness with middleware if needed, and build a LangGraph workflow only if still necessary. He is replying to a post arguing that complex multi-step workflows built from if-else logic or LangGraph should be avoided in favor of a harness.

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