The agentic era is forcing a reset in enterprise architecture. Agents taking action go far beyond just analyzing data living in lakehouses. Agents acting on behalf of humans, continuously, at machine scale bring new architectural requirements to the enterprise. The so-called “modern data stack” as most organizations know it, has become a sort of “new legacy.” No longer can organizations rely on stitched-together systems, fragmented governance, batch pipelines, and historical security boundari...