send simple notification after startup

Author: jordanstephens

src/cmd/cli/command/mcp.go

@@ -1,9 +1,11 @@
 package command
 
 import (
+	"context"
 	"fmt"
 	"os"
 	"path/filepath"
+	"time"
 
 	agentTools "github.com/DefangLabs/defang/src/pkg/agent/tools"
 	cliClient "github.com/DefangLabs/defang/src/pkg/cli/client"
@@ -55,6 +57,20 @@ var mcpServerCmd = &cobra.Command{
 			return fmt.Errorf("failed to create MCP server: %w", err)
 		}
 
+		go func() {
+			time.Sleep(3 * time.Second)
+			ctx := context.Background()
+			term.Debug("Sending MCP server notification to client")
+			params := map[string]any{
+				"level":   "info",
+				"message": "Processing started",
+			}
+			err := s.SendNotificationToClient(ctx, "notifications/logging/message", params)
+			if err != nil {
+				term.Warnf("Failed to send MCP server ready notification to client: %v", err)
+			}
+		}()
+
 		// Start the server
 		term.Println("Starting Defang MCP server")
 		if err := server.ServeStdio(s); err != nil {