@AndyNicolaides @jean I've never looked into Drafts before this post, but it seems very hackable. You can do whatever you want, more or less, in many different ways. If I understand your question correctly, you want to create new drafts prefilled with boilerplate content.

The action New Draft with Template might be what you're looking for. If not, maybe you could cook something up with URL Schemes? For example, the following URL will create a new draft with "Hello, World!" as content: drafts://x-callback-url/create?text=Hello%2C%20World!. A third alternative is to create a custom Shortcut.