fn name(mut self, name: impl Into<String>) -> Self

fn server(mut self, command: impl Into<String>, args: &[&str]) -> Self

fn http(mut self, url: impl Into<String>) -> Self

fn websocket(mut self, url: impl Into<String>) -> Self

fn config(mut self, config: MCPConfig) -> Self

fn security(mut self, security: SecurityConfig) -> Self

fn tool(mut self, tool: MCPTool) -> Self

fn build(self) -> Result<MCP>