The Future of MCP — David Soria Parra, Anthropic

· ai-agents · Source ↗

Summary based on the YouTube transcript and episode description.

David Soria Parra (Anthropic) argues 2026 is the year of agent connectivity, with MCP hitting 110M monthly downloads and a new stateless transport spec shipping in June.

  • MCP reached 110M monthly downloads — faster than React reached the same volume, with OpenAI, Google ADK, and LangChain all pulling it as a dependency.
  • Parra frames a three-layer 2026 connectivity stack: Skills (domain knowledge files), MCP (rich semantics, auth, enterprise), and CLI/computer use (local sandbox tasks).
  • Progressive discovery — deferring tool loading until the model needs it — dramatically cut tool-context usage in Claude Code; all agent harness builders should adopt this pattern.
  • Programmatic tool calling (give the model a REPL/V8 isolate instead of sequential tool calls) reduces latency, token use, and lets MCP structured output enable typed composition.
  • Google proposed a stateless HTTP transport for MCP to fix scaling on hyperscalers; spec and SDK support target June 2026.
  • Skills over MCP is coming: server authors will ship inline usage knowledge alongside tools, bypassing plugin registries and enabling continuous skill updates.
  • Cross-app access (SSO-style: log in once via Okta/Google, use all MCP servers without re-auth) and well-known URL server discovery are both targeting the June spec release.
  • Parra explicitly called out REST-to-MCP conversion tools as an antipattern; server authors should design tool interfaces for agent workflows, not mirror HTTP APIs.

2026-04-19 · Watch on YouTube

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