Inline-style links and reference-style links both produce the same effect.   But [reference-style][m] links make your text easier to read.   [m]:

Desert Island List

  • Emergency towel
  • Ukulele
  • Straw hat
  • Bug repellent
  • Toothpick umbrellas

  • item 1
  • item 2
  • item 3

    Joe said,

    Sally said,

    Billy said Markdown is what the cool kids are using.”

On the other side of the fence, you can also invoke any third-party app using their x-callback-url schemes. For example, you can send the current text to Drafts, run an action, and return to Workflow.

You can specify workflow%3A%2F%2F as the x-success and x-cancel parameters of the Open X-Callback URL action. Unfortunately, there isn't any encoding helper in Workflow at the moment - forcing you manually encode the URL and making it impossible to encode the runtime value using Workflow alone.