In 2026, data engineers working with multi-agent systems are hitting a familiar problem: Agents built on different platforms don’t operate from a shared understanding of the business. The result isn’t model failure — it’s hallucination driven by fragmented context.The problem is that agents built on different platforms, by different teams, do not share a common understanding of how the business actually operates. Each one carries its own interpretation of what a customer, an order or a region means. When those definitions diverge across a workforce of agents, decisions break down.A set of announcements from Microsoft this week directly targets that problem. The centerpiece is a significant expansion of Fabric IQ, the semantic intelligence layer the company debuted in November 2025. Fabric IQ’s business ontology is now accessible via MCP to any agent from any vendor, not just Microsoft’s. Alongside that, Microsoft is adding enterprise planning to Fabric IQ, unifying historical data, real-time signals and formal organizational goals in one queryable layer. The new Database Hub brings Azure SQL, Cosmos DB, PostgreSQL, MySQL and SQL Server under a single management plane inside Fabric. Fabric data agents reach general availability. The overall goal is a unified platform where all data and semantics are available and accessible by any agent to get the context that enterprises require.Amir Netz, CTO of Microsoft Fabric, reached for a film analogy to explain why the shared context layer matters. “It’s a little bit like the girl from 50 First Dates,” Netz told VentureBeat. “Every morning they wake up and they forget everything and you have to explain it again. This is the explanation that you give them every morning.”Why MCP access changes the equationMaking the ontology MCP-accessi …
