fixup working example

Author: nbarbettini

src/server/mcp.ts

@@ -178,7 +178,9 @@ export class McpServer {
                 }
             } catch (error) {
                 if (error instanceof McpError) {
-                    throw error; // Let the error bubble up to the caller
+                    if (error.code === ErrorCode.UrlElicitationRequired) {
+                        throw error; // Return the error to the caller without wrapping in CallToolResult
+                    }
                 }
                 return this.createToolError(error instanceof Error ? error.message : String(error));
             }

src/shared/protocol.ts

@@ -250,7 +250,7 @@ export abstract class Protocol<SendRequestT extends Request, SendNotificationT e
         const totalElapsed = Date.now() - info.startTime;
         if (info.maxTotalTimeout && totalElapsed >= info.maxTotalTimeout) {
             this._timeoutInfo.delete(messageId);
-            throw new McpError(ErrorCode.RequestTimeout, 'Maximum total timeout exceeded', {
+            throw McpError.fromError(ErrorCode.RequestTimeout, 'Maximum total timeout exceeded', {
                 maxTotalTimeout: info.maxTotalTimeout,
                 totalElapsed
             });
@@ -313,7 +313,7 @@ export abstract class Protocol<SendRequestT extends Request, SendNotificationT e
         this._transport = undefined;
         this.onclose?.();
 
-        const error = new McpError(ErrorCode.ConnectionClosed, 'Connection closed');
+        const error = McpError.fromError(ErrorCode.ConnectionClosed, 'Connection closed');
         for (const handler of responseHandlers.values()) {
             handler(error);
         }
@@ -567,7 +567,7 @@ export abstract class Protocol<SendRequestT extends Request, SendNotificationT e
             });
 
             const timeout = options?.timeout ?? DEFAULT_REQUEST_TIMEOUT_MSEC;
-            const timeoutHandler = () => cancel(new McpError(ErrorCode.RequestTimeout, 'Request timed out', { timeout }));
+            const timeoutHandler = () => cancel(McpError.fromError(ErrorCode.RequestTimeout, 'Request timed out', { timeout }));
 
             this._setupTimeout(messageId, timeout, options?.maxTotalTimeout, timeoutHandler, options?.resetTimeoutOnProgress ?? false);