https://e343c64b.dataagentx.pages.dev/en/tags/system-architecture/Recent content in System Architecture on DataAgentXHugoen-USMon, 07 Sep 2026 00:00:00 +0000https://e343c64b.dataagentx.pages.dev/en/tech/20260907-architecture/Mon, 07 Sep 2026 00:00:00 +0000https://e343c64b.dataagentx.pages.dev/en/tech/20260907-architecture/<p>“Why did new-customer conversion fall this month?” sounds like a SQL question. It is not.</p> <p>Before touching a warehouse, a useful Data Agent has to establish what <em>new customer</em> means, which conversion window applies, whether the metric changed recently, which data the requester is allowed to see, and what evidence would make an explanation credible. A query can run perfectly and still answer the wrong question.</p> <p>Production Data Agents therefore need more than a language model and a database connector. They need a chain of responsibilities that turns ambiguous intent into a result another person can inspect. The seven-layer model below is a way to design that chain—and, when it breaks, to locate the failure.</p>