Your Principle Bank is a set of standing rules that Margo follows for every piece of content it writes. These are your voice rules. They override everything else.
What principles do
A principle is a rule in your own words that tells Margo how you sound. Examples:
"Never use emojis in captions" means no emojis, full stop.
"Always open with a number or a hard claim" means every piece starts with something concrete, not a soft question.
"Write at a 6th-grade reading level" means short sentences, common words, no jargon.
"No engagement-bait questions at the end" means no "What do you think?" or "Drop a comment telling me...".
Principles capture the difference between sounding like you and sounding like AI.
How to add a principle
Open the Principle Bank tab and type the rule in your own words. It should be short, specific, and something you actually care about enforcing.
If you have strong feelings about how you write (no corporate speak, always mention a client example, never use the word "journey"), add it as a principle. Margo will hold it.
When principles matter most
The more vague your principle, the less Margo can follow it. "Write better" is not a principle. "Never use passive voice" is.
Some principles are easier for AI to follow than others. Formatting rules ("always bold the first sentence") are straightforward. Tone rules ("warmer but not saccharine") require more interpretation, but Margo will try.
If a principle contradicts itself or conflicts with another one, the result might feel stuck. Keep related principles clear and distinct.
Lock it in
When you add a principle, you will see a message saying "Principle locked in". That means Margo knows about it and will use it immediately on all future writing.
You can add as many principles as you need. Most creators find 3 to 7 principles give good coverage without becoming overwhelming.