Author

Yifang Zhang

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Preprint Jul 2026

DarwinX: Evolving Agent Harnesses Through Natural Selection

DarwinX is introduced, which treats self-evolution as selection over a population of harnesses with the model frozen: a preserve-and-extend contract admits only variants that extend coverage without regressing, an archive keeps alternative lineages for recombination, and failure-, teacher-, and self-derived evidence sh...

Yifang Zhang, Yutong Dai, Juntao Tan et al. · 2 citations · ⚡1