Indeed! You can also trigger a Workflow from the Share function on a task, which will also give you the task itself in Taskpaper format as input that you could parse/manipulate (if you’re smarter with Regex than I am).
just wanted to clarify, if by that you mean opening a note field and then pressing the link in the notes?
or do you mean that you can trigger url from the notes field on completion as e.g. Due does?