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Harness Design Sensitivity in LLM-Driven Discovery

September 29, 2026

Evaluating 12 modular harnesses across 5 discovery tasks reveals that LLM-driven optimization success is highly sensitive to harness design. Common failures include mode collapse, where the diversity of iterative outputs drops dramatically during the optimization process.

HOW THIS AFFECTS YOU

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researcherYou must account for mode collapse when designing iterative optimization loops for scientific discovery.

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founderThe brittleness of LLM discovery processes means your product's reliability depends heavily on your specific harness architecture.

read original ↗huggingface.co

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