MCP Expert Overview Definitive resource for building and managing Model Context Protocol ecosystems. Covers the full lifecycle from server development and transport configuration to security, elicitation, and async task execution. Designs agent-first tool interfaces that minimize token usage and maximize LLM accuracy. When to use: Building MCP servers, designing tool interfaces, configuring transports (Stdio/Streamable HTTP), implementing OAuth 2.1, troubleshooting connectivity, using elicitation for server-initiated user interaction. When NOT to use: Application-level business logic, non-MCP…