Context sensitive help Tags for External Applications

I’m new to Hugo and am interested in setting up tags in my Hugo content to be used by my external applications so users of these external applications can receive context sensitive help from the Hugo pages.

  1. How do I set context tags within Hugo content, Short Codes, Taxonomies, or ?
  2. Are there special codes needed to reference the Hugo context tags from the external applications?
  3. Are there other options?

Thanks in advance.