The 2026-07-28 Model Context Protocol Release Candidate: What the Stateless Spec Means for Data Platforms

This article examines the upcoming Model Context Protocol (MCP) release candidate and its implications for data platforms, particularly in analytics and agentic lakehouse architectures. It discusses how stateless MCP patterns enable scalable agent workloads, standardizing tool calls for metadata, semantic definitions, query engines, and catalogs. The article emphasizes that MCP is an interface layer, not a data platform replacement, and highlights Dremio's fit for governed data contexts. It covers identity propagation, auditability, tool design, production readiness, and risks, providing a checklist for data teams preparing for stateless MCP adoption.