Edit: Turns out there’s a whole thread about the technique I describe below 
You can use any text substitution tool to accomplish this (macOS text substitution, Alfred snippets, TextExpander, etc). Here’s some instructions for macOS text substitution:
- Create a note that serves as your template note
- Select the text and “copy as markdown”
- Paste it into a text editor, and delete the blank lines (this is because Agenda exports markdown with empty lines between sections, but interprets them as their own sections when you paste it back in. So you have to delete the blank lines so you don’t end up with a bunch of empty space in your new note.)
- Open
System Preferences -> Keyboard -> Text - Insert a new replacement: e.g. Replace
'dailywith<paste the edited markdown here>
That’s the setup. To create a new note with the template:
- Create a note
- Type your shortcut in. OS X will present a popup replacement:
- Click it, and MacOS will fill in the note
- Double-click the note title to collapse it, and then again to expand it (Agenda seems to render a bit weird after this replacement, so collapse and expand will pick up the changes)
