CHART: A Harness-Rotation Curriculum for Harness-Robust Search Agents
Search agents are usually trained under a single harness. But once an agent is deployed in a real application, its harness is frequently updated (e.g., a rewritten system prompt) to fit production needs. This exposes a fragility of post-trained agents: because a learned behavior is entangled with its training harness,...
Xin-Lu Zhang, Ying-Chun Lin, Zhi-Han Zhang et al.
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