MCP Is Not Enough — And Someone Just Mapped the Seven Gaps That Prove It

Thomas Scola just published the most clear-eyed analysis of the agent protocol landscape I have read this year. The argument: MCP solved tool integration beautifully, but tools are not agents. What is missing above the transport layer — identity, discovery, policy, manifests — is where production breaks down. He identifies seven gaps. I want to focus on the first one, because it is the gap we have been building against for two months. Gap #1: Agent Identity That Is Portable, Not Platform-Bound Here is the problem as Scola frames it: A2A Agent Cards and ACP Agent Manifests both describe what an agent can do. Neither provides a portable identity that travels with the agent across deployment environments, frameworks, and vendors. This is exactly right. An A2A Agent Card says "I can translate documents." It does not say "I am the same agent you talked to yesterday." An MCP server authenticates via OAuth, but the server cannot prove continuity of identity across sessions. Every major protoc