Update to Drupal 8.0.2. For more information, see https://www.drupal.org/drupal-8.0.2-release-notes

core/modules/action/migration_templates/d6_action.yml

@@ -0,0 +1,39 @@
+id: d6_action
+label: Actions
+migration_tags:
+  - Drupal 6
+source:
+  plugin: action
+process:
+  id:
+    -
+      plugin: machine_name
+      source: aid
+  label: description
+  type: type
+  plugin:
+    -
+      plugin: static_map
+      source: callback
+      map:
+        system_goto_action: action_goto_action
+        system_send_email_action: action_send_email_action
+        system_message_action: action_message_action
+        user_block_ip_action: 0
+        imagecache_flush_action: 0
+        imagecache_generate_all_action: 0
+        imagecache_generate_action: 0
+      bypass: true
+    -
+      plugin: skip_on_empty
+      method: row
+  configuration:
+    -
+      plugin: default_value
+      source: parameters
+      default_value: "a:0:{}"
+    -
+      plugin: callback
+      callable: unserialize
+destination:
+  plugin: entity:action

core/modules/action/migration_templates/d7_action.yml

@@ -0,0 +1,36 @@
+id: d7_action
+label: Actions
+migration_tags:
+  - Drupal 7
+source:
+  plugin: action
+process:
+  id:
+    -
+      plugin: machine_name
+      source: aid
+  label: label
+  type: type
+  plugin:
+    -
+      plugin: static_map
+      source: callback
+      map:
+        system_goto_action: action_goto_action
+        system_send_email_action: action_send_email_action
+        system_message_action: action_message_action
+        system_block_ip_action: 0
+      bypass: true
+    -
+      plugin: skip_on_empty
+      method: row
+  configuration:
+    -
+      plugin: default_value
+      source: parameters
+      default_value: "a:0:{}"
+    -
+      plugin: callback
+      callable: unserialize
+destination:
+  plugin: entity:action