Choose a voice archetype or train Signal on your own writing so posts sound like you.
Open SignalFrom the dashboard, go to your voice. This is the personality every post inherits.
Start from one of the built-in archetypes, or paste a few things you have written and let Signal learn the pattern.
Generate a sample post and read it out loud. If it does not sound like you, adjust and try again.
Save the voice. Every bucket and post uses it until you change it.