Custom Actions can be added at golden path template level and used. The output of the custom Action cannot be auto redirected upon step completion, in case if the output of the custom action is link.  We are able to add and display the same as link for user to click but the capability to auto redirect/navigate elsewhere is missing.

  steps:
    - id: generate_url
      name: Generate URL
      action: abc:generateUrl
      input:
        name: ${{ parameters.name }}
        desc: ${{ parameters.description }}

      output:
        url: ${{ steps['generate_url'].output.url }}

  output:
    navigate: ${\

}