Beyond Context Windows: Persistent Discovery Context for Data-Centric Agents

Data-centric agents repeatedly perform a discovery step before planning or execution: identifying the data objects relevant to a task. Yet successful dis- covery outcomes are typically discarded rather than reused. We introduce persistent discovery context, a lightweight memory layer that stores prior intent-to-object mappings and reuses them to augment future retrieval. Across three structured data environments, persistent discovery context consistently improves retrieval quality over metadata-only search, remains effective with automatically generated memories, and exposes a repro- ducible interference failure mode. In lexically sparse domains, memory- only retrieval can even outperform metadata-based retrieval. These find- ings suggest that discovery outcomes constitute a useful form of reusable context for data-centric agents