ByteDance Seed's HarnessDev tests whether LLMs can build and evolve their own agent harnesses
ByteDance-Seed · hf · 2026-09-03
ByteDance Seed released HarnessDev, a benchmark that evaluates agents by their ability to build and iteratively improve their own execution infrastructure rather than final outputs, finding self-built harnesses vary widely in capability and transfer poorly across models.
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