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How To Build A Harness With Jev | A LangChain x TypeSafe Conversation

LangChain22 September 2026Watch on YouTube

What you'll learn

  • Sydney Runkle (LangChain), Allie Laabs (TypeSafe AI) and Hunter Lovell (LangChain) build an agent harness with Jev in a live conversation.
  • Jev is a new System One model from TypeSafe AI that is used in the broadcast.
  • You see how LangChain and TypeSafe AI work together on an agent harness around a model.
  • The session is a live conversation in which building the harness is covered step by step.

Frequently asked questions

Who are the speakers in this broadcast?
Sydney Runkle, Product Manager OSS at LangChain, Allie Laabs, Founding Developer Advocate at TypeSafe AI, and Hunter Lovell, Technical Lead at LangChain.
What is Jev?
Jev is a new System One model from TypeSafe AI.
What do the speakers build in the broadcast?
In a live conversation they build an agent harness with Jev.
Which organizations do the speakers come from?
The speakers come from LangChain and TypeSafe AI.

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Description from the channel

Hear from Sydney Runkle, Product Manager, OSS at LangChain, Allie Laabs, Founding Developer Advocate at TypeSafe AI, and Hunter Lovell, Technical Lead at LangChain, for a live conversation on building an agent harness with Jev, a new System One model from TypeSafe AI.