Bring what you already know or have been told about your audience. This tool never invents audience facts — it organizes what you give it, tags every claim Known, Assumed, or Needs-Verification, and refuses to let the unconfirmed items disappear into the document unmarked.
Free text, deliberately unstructured — a fill-in-the-blank persona form would coax you toward invented specificity. Whatever real evidence (or its genuine absence) you actually have is what should show through. Don't have much yet? Leave this blank and generate anyway — you'll get a short list of questions to go ask, not a guessed profile.