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Yunpeng Song

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Preprint Jul 2026

Alignment Is Local: A Paired Diagnostic for GUI Agents under User-Side Persuasion

It is shown that a one-line guardrail achieves large single-shot ASR reductions, up to roughly 40 points, at near-zero over-refusal cost, which overstates deployed robustness by a systematic and predictable margin.

Haoxin An, Yunpeng Song, Zihao Bai et al. · 0 citations