Logos: An Agent Harness on a Cross-Process Bus

Logos: An Agent Harness on a Cross-Process Bus

• ID: 0c35ad3a
• 原文链接: https://arxiv.org/abs/2608.28553
• PDF: https://arxiv.org/pdf/2608.28553v2
• 作者: Hanzhang Jia, Liheng Zeng, Hao Cheng, Yi Gao, Bo Ma
• 发布日期: 2026-08-28
• 更新日期: 2026-08-31
• 主分类: cs.AI
• 分类: cs.AI, cs.MA
• 备注: Still just draft, version 0.0.7
• 归档分类: agents
• 标签: agent-harness、cross-process、fault-tolerance、plugin-architecture、distributed-systems
• 质量评分: 4/5
• 抓取时间: 2026-09-01T04:24:13Z

中文导读

现代 agent 系统在运行时以插件方式组装能力，但时空可组合性演算的参考载体是共享单一上下文的单进程：所有组件落在同一物理故障域，一次故障挂起全部组件，进程死亡打断其承载的所有会话。作者指出建模与演算都没有把 agent 绑定在单进程上：语言模型的无状态性使跨步骤状态都在模型之外，可靠性不变量只定义在状态空间上。基于四条引理构造出 Logos：一个类 ROS 的跨进程 agent harness，插件即进程，唯一共享状态是追加式 transcript。在工具调用周期四个边界注入 kill 的 80 个会话全部无重复副作用地恢复；同故障对照实验中，单进程参考配置一次故障打断所有同驻会话，而对等进程构造把故障限制在一个节点。

为什么值得关注

把 agent harness 拆成跨进程：每个插件是一个进程，唯一的共享状态是追加式 transcript，工具调用四边界注入 kill 也能无重复副作用恢复。

关键信息

• 论文标题：Logos: An Agent Harness on a Cross-Process Bus
• 作者：Hanzhang Jia, Liheng Zeng, Hao Cheng, Yi Gao, Bo Ma
• arXiv：https://arxiv.org/abs/2608.28553
• PDF：https://arxiv.org/pdf/2608.28553v2
• 发布时间：2026-08-28
• 更新日期：2026-08-31
• arXiv 分类：cs.AI, cs.MA
• 备注：Still just draft, version 0.0.7
• 关联标签：agent-harness、cross-process、fault-tolerance、plugin-architecture、distributed-systems

English Abstract

Modern agent systems assemble capabilities at runtime, and this dynamic composition has recently received a complete formal treatment in the spatiotemporal-composability calculus, in which a capability is a component carrying a tracked inverse, and agents are assembled as plugins. This plugin form is carried by a single process sharing one context, a carrier that places all components in one physical failure domain, a fault suspends every component at once, and process death interrupts every session the process hosts. This paper shows that neither the modeling nor the calculus binds an agent to one process, the statelessness of the language model keeps all cross-step state outside the model, and the soundness invariant is defined on the state space alone. These observations condense into four lemmas whose premises are the hypotheses of the calculus and the statelessness of language-model inference. On these lemmas this paper constructs Logos, a ROS-like cross process agent harness in which a plugin is a process and the only shared state is an append-only transcript. Eighty sessions resume with no repeated effect after kills placed at the four boundaries of the tool-call cycle, and a same-fault comparison with a single process reference configuration shows one fault interrupting every co-resident session while under the peer-process construction one fault ends at one node.

English Summary

Modern agent systems assemble capabilities at runtime as plugins, but the reference carrier of the spatiotemporal-composability calculus is a single process sharing one context: all components sit in one physical failure domain, a fault suspends every component at once, and process death interrupts every hosted session. The authors observe that neither the modeling nor the calculus binds an agent to one process: LLM statelessness keeps cross-step state outside the model, and the soundness invariant is defined on the state space alone. From four lemmas they build Logos, a ROS-like cross-process agent harness where each plugin is a process and the only shared state is an append-only transcript. Eighty sessions resume with no repeated effect after kills placed at the four boundaries of the tool-call cycle; in a same-fault comparison, a single-process reference configuration interrupts every co-resident session, while the peer-process construction confines one fault to one node.

Obsidian Notes

• 内容由 opencli arxiv paper 拉取 arXiv 元数据与摘要生成。
• 中文导读与价值判断均锚定在条目已有摘要、论文摘要、作者、日期与分类信息上；未补充论文摘要之外的实验细节。
• 抓取时间戳：2026-09-01T04:24:13Z（UTC）。