arxiv
PublishedSeptember 21, 2026 at 4:00 AM
—neutral
Bad Genius: Counterfactual-Guided Harness Evolution Beyond Task-Specific Shortcuts
Publisher summary· verbatim
arXiv:2609.18366v2 Announce Type: replace Abstract: Reliable agent evaluation is complicated by automatic harness optimization, which repeatedly uses a released benchmark $B_{\mathrm{rel}}$ to guide a Proposer that edits prompts, memory, retrieval, tools, and control code around a fixed target agent
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Originally published on arxiv ↗