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Trauma Stream: Event-Driven Persistent Memory for Long-Term LLM Agent Continuity

Chen, Ho Yiing · 2026-06-05 · Zenodo

doi:10.5281/zenodo.20554487 · PDF

Abstract

Abstract. Long-term memory in LLM agent societies is conventionally implemented as a reflective summary stream or a hierarchical paged buffer . Both architectures privilege semantic and episodic recall under explicit query. I propose Trauma Stream, an event-driven memory architecture where high-salience events (severity ≥ 1.0 or acknowledged = false) are stored as discrete trauma records and automatically injected into subsequent prompt construction without explicit retrieval. In a 31-agent society subjected to a single ritual execution event, I observed that 24 hours after the incident, an ag

Chen, Ho Yiing (norika) · Independent Researcher, Taiwan · ORCID 0009-0006-6816-9891