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一篇关于分布式系统一致性的技术博客，指出一致性并非单个组件的局部属性，即使 Apache Kafka 花费数年实现 exactly-once 语义，仍需要应用端到端设计和专人对整体属性负责。
This paper investigates where exactly-once behavior should be enforced in LLM agents to prevent duplicate side effects, using a deterministic sandbox named Limbo to test across models, harnesses, and tool contracts under various fault conditions.
This article argues that achieving exactly-once execution in distributed systems is impossible, and that agent stacks must be designed to deal with this limitation.