ResearchBenchmarksWatermark Detection on SWE-SmithFollow0.41Delta_q (No Attack)ACTHOOK0.3980.4790.560.641Feb 21, 2026Evaluation ResultsMethodMethodLinksDelta_q (No Attack)Delta_q (Attack)AUC (No Attack)AUC (Attack)ACTHOOKWatermark Type=StandaloneWatermark Type=Standalone2026.020.410.3688.386.7ACTHOOKWatermark Type=ContextualWatermark Type=Contextual2026.020.710.6194.291.1