This skill should be used when the user asks about the Model Context Protocol — "what does the MCP spec say about X", "look up SEP-991", "how does Streamable HTTP work", "MCP Apps SDK lifecycle", "JSON-RPC method shape", "capability negotiation", "OAuth + RFC 8707", "session management", "completion/complete", "resource templates", "sampling", or any wording in the spec or extensions. Provides semantic search over the locally mirrored MCP specification (all versions), SEPs, Apps SDK / Auth / Tasks extensions, and Anthropic MCP blog posts. Use BEFORE WebFetch'ing modelcontextprotocol.io — the local mirror is fresher and rate-limit-free.
2026-05-31