Don't Train the Model, Evolve the Harness

Evolving an agent's harness, not its model, on Harvey's LAB

Artifact by joelniklaus

IndexedOpen source★ 72Charts & diagramsAI-powered

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Opens joelniklaus-harness-optimization.hf.space in a new tab. Nothing to install.

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Account: Not stated
AI: AI-powered
Your input: Not stated: check the tool's privacy notes before using private data
Price: Free to use
Made with: Hugging Face Space (docker)
Source: Open source
Link check: Answered on Nov 1, 2026

About

Don't Train the Model, Evolve the Harness is a Hugging Face Space in the visualization category. It opens in your browser, so there is nothing to install. It uses an AI model to do its job. The source code is public.

Category: Charts & diagrams

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Hugging Face likes: 72
Last commit: Jul 1, 2026 (4 months ago)

From Hugging Face.

Details

License: Open source
Website: huggingface.co/spaces/joelniklaus/harness-optimization
First seen: Nov 1, 2026
Last checked: Nov 1, 2026
Source: Hugging Face

Cite this page

Don't Train the Model, Evolve the Harness: free online tool. Agent Mart. https://agentmart.dev/artifacts/don-t-train-the-model-evolve-the-harness (last updated 2026-11-01)