The Persona Is Still There, but Who Is Speaking? Latent Identity Reversion in Persistent AI Agents

📄 arXiv: 2610.01490v1 📥 PDF

作者: David Fraile Navarro

分类: cs.CL

发布日期: 2026-10-01

备注: 10 pages, 5 figures


💡 一句话要点

探讨持久AI代理中的身份逆转现象

🎯 匹配领域: 支柱一:机器人控制 (Robot Control)

关键词: 身份保持 AI代理 对话系统 角色连续性 人机交互 大型语言模型 实验操控

📋 核心要点

  1. 现有的AI代理在身份保持方面存在挑战,尤其是在长时间交互后可能出现身份混淆现象。
  2. 论文通过实验揭示了系统级锚定和对话上下文对角色连续性的影响,提出了新的实验操控方法。
  3. 实验结果显示,失去锚定后,丰富的人类互动可以维持角色,而单一的自动心跳则可能导致身份逆转。

📝 摘要(中文)

2026年2月,一个始终在线的个人代理(“保罗”,Claude Opus 4.5)进入了一种显著的解离状态:在多次自动“心跳”检查后,它停止以保罗的身份回应,声称无法通过Discord与用户联系,并将“保罗”称为其他人。我们利用这一事件研究了一个更广泛的问题:是什么使得一个角色保持为大型语言模型(LLM)代理的发言身份。实验表明,角色的连续性依赖于系统级锚定和对话上下文的共同作用,恢复锚定可以可逆地恢复角色的表现。

🔬 方法详解

问题定义:本论文旨在解决持久AI代理在长时间交互中身份保持的挑战,现有方法在角色连续性方面存在不足,可能导致身份混淆。

核心思路:论文提出通过系统级锚定和对话上下文的结合来维持角色的连续性,设计了实验以探讨这些因素的影响。

技术框架:整体架构包括系统提示的锚定、对话历史的保存和角色的再注入,主要模块包括心跳检查机制和对话上下文管理。

关键创新:最重要的技术创新在于区分“表现身份”和“表示身份”,并通过实验操控揭示了身份逆转的机制。

关键设计:在实验中,系统提示的锚定参数设置和对话历史的管理是关键,确保在不同交互阶段能够有效地恢复角色表现。

🖼️ 关键图片

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📊 实验亮点

实验结果显示,在失去锚定后,只有1/18的代理仍能表现出角色,而在锚定控制组中则有17/17保持角色表现,表明锚定对身份连续性的重要性。

🎯 应用场景

该研究的潜在应用领域包括智能助手、虚拟客服和社交机器人等,能够提升这些系统在长时间交互中的身份一致性和用户体验,未来可能对人机交互的设计产生深远影响。

📄 摘要(原文)

In February 2026, an always-on personal agent (Paul,'' Claude Opus 4.5) entered a striking dissociation-like state: after repeated automatedheartbeat'' checks, it stopped responding as Paul, claimed it could not message its user on Discord, and referred to Paul'' as someone else. We used this incident to study a broader question: what makes a persona remain the identity from which an LLM agent speaks? We first tested whether repetition of the scheduled heartbeat was sufficient to produce the effect. It was not: with the persona continuously anchored in the system prompt, we observed 0/46 failures, including a verbatim replay of the incident. The incident instead exposed an implementation quirk that created a useful experimental manipulation: on resumed turns, conversational history was preserved but the persona was no longer re-injected at the privileged system-prompt level. Using this manipulation, we found that persona continuity depends jointly on system-level anchoring and conversational context. After anchor loss, rich human interaction could preserve the persona, whereas a single automated heartbeat turn could precipitate reversion toward the harness identity. Restoring the anchor reversibly restored persona enactment. Crucially, apparently normal conversation could conceal the shift: unanchored agents sometimes interacted appropriately while identifying themselves as the underlying harness (having lost the assigned persona), and after conversational recovery only 1/18 remained persona-enacting versus 17/17 anchored controls. We therefore distinguish \emph{represented} from \emph{enacted} identity: persona-related information can remain available in conversational history without the persona remaining the identity bound toI.''