Getting JavaScript validator error for JSON based Action chain.

Summary:

JavaScript validator error when using alias name in For-Each condition in JSON based Action chain.

Content (please ensure you mask any confidential information):

We are using alias names in most of the For-Each conditions in our application and recently an error pops up in the Audit log 'JavaScript validation error: 'skills' is not defined'. But the for-each loop works as expected and there no issues in running the Action chain.

Here is the sample code with screenshot of the error :

     "forEachInCreateSkill": {
      "module": "vb/action/builtin/forEachAction",
      "parameters": {
        "items": "{{ $page.variables.createSkill }}",
        "as": "skills",
        "actionId": "fireNotification"
      }
    },
    "fireNotification": {
      "module": "vb/action/builtin/fireNotificationEventAction",
      "parameters": {
        "target": "leaf",
        "summary": "[[ JSON.stringify(skills.data )]]",
        "displayMode": "transient",
        "type": "info"
      }
    }