Custom Agent Harnesses with Jev

Elvis uses Jev to build custom harnesses and reports success with guardrails, routing, and verifiers.

elvis@omarsar0𝕏

Pay attention to System One models if you are building custom harnesses and agentic workflows. Great to see DSPy integrate Jev and now support System One models for calibrating agentic workflows. I'm amazed at how naturally System One models like Jev fit into these frameworks. I am using Jev to build my own custom harnesses like here: https://t.co/Ccy5o4s6QU So far, I've had great success with guardrails, routing, and verifiers. However, I am starting to see other interesting applications in other parts of the agent harness, like: > structuring skills and better optimizing them > more

Sep 25, 2026X postsView on X

He notes that DSPy has integrated Jev and supports System One models for calibrating agentic workflows. He is also exploring applications such as structuring and optimizing skills.

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