Open standards contributions from hyperscalers follow a reliable pattern: the contributor shapes the standard toward its own infrastructure strengths, then offers the best-optimized implementation. Google's gRPC addition to MCP is structurally identical to that pattern. gRPC is a Google-originated protocol, and Google Cloud is the most natural deployment target for agents built on Google-managed MCP servers. The production-ready agent guidance published in March framed managed MCP servers as the enterprise-grade path — the April gRPC announcement supplies the performance argument that makes that framing stick. Enterprises evaluating agent infrastructure now…