MCP dropped its session handshake for a stateless core, hardened OAuth, and made tool lists cacheable, with SDK adoption near half a billion downloads

The 2026-07-28 MCP spec makes tool catalogs cheap to scale — and tool selection your new bottleneck. Why agent reliability is now a training-data problem, and what to do about it…

The Model Context Protocol (MCP) published its 2026-07-28 specification, the largest revision since launch: MCP is now stateless, with a governed extensions system and hardened…