add auto-stop flag to fly mcp launch (#4379)

Author: rubys

internal/command/mcp/launch.go

@@ -31,7 +31,7 @@ type MCPServer struct {
 
 func NewLaunch() *cobra.Command {
 	const (
-		short = "[experimental] Launch an MCP stdio program"
+		short = "[experimental] Launch an MCP stdio server"
 		long  = short + "\n"
 		usage = "launch command"
 	)
@@ -70,6 +70,11 @@ func NewLaunch() *cobra.Command {
 			Name:        "config",
 			Description: "Path to the MCP client configuration file (can be specified multiple times)",
 		},
+		flag.String{
+			Name:        "auto-stop",
+			Description: "Automatically suspend the app after a period of inactivity. Valid values are 'off', 'stop', and 'suspend",
+			Default:     "stop",
+		},
 	)
 
 	for client, name := range McpClients {
@@ -159,6 +164,10 @@ func runLaunch(ctx context.Context) error {
 		args = append(args, "--flycast")
 	}
 
+	if autoStop := flag.GetString(ctx, "auto-stop"); autoStop != "" {
+		args = append(args, "--auto-stop", autoStop)
+	}
+
 	// Run fly launch, but don't deploy
 	cmd := exec.Command(flyctl, args...)
 	cmd.Env = os.Environ()