diff --git a/commands/action.go b/commands/action.go
index 615f56b0d..23fb715a8 100644
--- a/commands/action.go
+++ b/commands/action.go
@@ -139,6 +139,13 @@ var actionUpdateCmd = &cobra.Command{
 			return actionParseError(cmd, args, err)
 		}
 
+		if os.Getenv("WSK_CLI_PROMPT_ON_CHANGE") == "true" {
+			if Flags.action.confirm != "yes" && Flags.action.confirm != "y" {
+				fmt.Fprintf(color.Output, wski18n.T("Please update action using --confirm yes if you really want to update it"))
+				return nil
+			}
+		}
+
 		if _, _, err = Client.Actions.Insert(action, true); err != nil {
 			return actionInsertError(action, err)
 		}
@@ -335,6 +342,13 @@ var actionDeleteCmd = &cobra.Command{
 
 		Client.Namespace = qualifiedName.GetNamespace()
 
+		if os.Getenv("WSK_CLI_PROMPT_ON_CHANGE") == "true" {
+			if Flags.action.confirm != "yes" && Flags.action.confirm != "y" {
+				fmt.Fprintf(color.Output, wski18n.T("Please delete action using --confirm yes if you really want to update it"))
+				return nil
+			}
+		}
+
 		if _, err = Client.Actions.Delete(qualifiedName.GetEntityName()); err != nil {
 			return actionDeleteError(qualifiedName.GetEntityName(), err)
 		}
@@ -1269,6 +1283,8 @@ func init() {
 	actionCreateCmd.Flags().StringVar(&Flags.action.web, WEB_FLAG, "", wski18n.T("treat ACTION as a web action, a raw HTTP web action, or as a standard action; yes | true = web action, raw = raw HTTP web action, no | false = standard action"))
 	actionCreateCmd.Flags().StringVar(&Flags.action.websecure, WEB_SECURE_FLAG, "", wski18n.T("secure the web action. where `SECRET` is true, false, or any string. Only valid when the ACTION is a web action"))
 
+	actionDeleteCmd.Flags().StringVar(&Flags.action.confirm, "confirm", "no", wski18n.T("you confirm do this operation?yes or y | default:no (environment variable WSK_CLI_PROMPT_ON_CHANGE=true works)"))
+
 	actionUpdateCmd.Flags().BoolVar(&Flags.action.native, "native", false, wski18n.T("treat ACTION as native action (zip file provides a compatible executable to run)"))
 	actionUpdateCmd.Flags().StringVar(&Flags.action.docker, "docker", "", wski18n.T("use provided docker image (a path on DockerHub) to run the action"))
 	actionUpdateCmd.Flags().BoolVar(&Flags.action.copy, "copy", false, wski18n.T("treat ACTION as the name of an existing action"))
@@ -1284,6 +1300,7 @@ func init() {
 	actionUpdateCmd.Flags().StringVarP(&Flags.common.paramFile, "param-file", "P", "", wski18n.T("`FILE` containing parameter values in JSON format"))
 	actionUpdateCmd.Flags().StringVar(&Flags.action.web, WEB_FLAG, "", wski18n.T("treat ACTION as a web action, a raw HTTP web action, or as a standard action; yes | true = web action, raw = raw HTTP web action, no | false = standard action"))
 	actionUpdateCmd.Flags().StringVar(&Flags.action.websecure, WEB_SECURE_FLAG, "", wski18n.T("secure the web action. where `SECRET` is true, false, or any string. Only valid when the ACTION is a web action"))
+	actionUpdateCmd.Flags().StringVar(&Flags.action.confirm, "confirm", "no", wski18n.T("you confirm do this operation?yes or y | default:no"))
 
 	actionInvokeCmd.Flags().StringSliceVarP(&Flags.common.param, "param", "p", []string{}, wski18n.T("parameter values in `KEY VALUE` format"))
 	actionInvokeCmd.Flags().StringVarP(&Flags.common.paramFile, "param-file", "P", "", wski18n.T("`FILE` containing parameter values in JSON format"))
diff --git a/commands/flags.go b/commands/flags.go
index 223ccfe08..4282ec443 100644
--- a/commands/flags.go
+++ b/commands/flags.go
@@ -145,6 +145,7 @@ type ActionFlags struct {
 	url       bool
 	save      bool
 	saveAs    string
+	confirm   string
 }
 
 func IsVerbose() bool {
diff --git a/wski18n/resources/en_US.all.json b/wski18n/resources/en_US.all.json
index 3e7024ec9..df909a802 100644
--- a/wski18n/resources/en_US.all.json
+++ b/wski18n/resources/en_US.all.json
@@ -1415,6 +1415,10 @@
     "id": "treat ACTION as a web action, a raw HTTP web action, or as a standard action; yes | true = web action, raw = raw HTTP web action, no | false = standard action",
     "translation": "treat ACTION as a web action, a raw HTTP web action, or as a standard action; yes | true = web action, raw = raw HTTP web action, no | false = standard action"
   },
+  {
+    "id": "you confirm do this operation?yes or y | default:no (environment variable WSK_CLI_PROMPT_ON_CHANGE=true works)",
+    "translation": "you confirm do this operation?yes or y | default:no (environment variable WSK_CLI_PROMPT_ON_CHANGE=true works)"
+  },
   {
     "id": "secure the web action. where `SECRET` is true, false, or any string. Only valid when the ACTION is a web action",
     "translation": "secure the web action. where `SECRET` is true, false, or any string. Only valid when the ACTION is a web action"