@article{contextechoabenchmarkforpersonadriftinlo, title = {ContextEcho: A Benchmark for Persona Drift in Long Agentic-Coding Sessions}, author = {Xianzhong Ding and Yangyang Yu and Changwei Liu and Bill Zhao}, year = {2026}, eprint = {2605.24279}, archivePrefix = {arXiv}, url = {https://arxiv.org/abs/2605.24279}, }