For the engine to write pages worth publishing, it needs two things from you: it has to sound like you, and it has to be accurate. Brand voice and the source of truth are where you give it both.
Brand voice
On the Brand voice page you teach the engine your tone. Paste real examples of how you write, landing-page copy, blog snippets, sales emails, into the corpus. The more long-form prose it has to learn from, the closer every generated page sounds to you. You can also ingest a blog or doc URL instead of pasting. New samples wait for a quick review before they feed the engine.
Source of truth
The source of truth is the facts the engine writes from: your product, your competitors, and your brand voice corpus. The publish-readiness checklist shows whether each one is in place.
This is a hard gate. Until product truth, competitor truth, and the voice corpus are populated, the engine will not publish, so it can never invent claims about a product it does not understand. Optional items, like an off-limits list, sharpen the output further.
Keep these current, and every future page the engine writes stays on-message and on-brand, automatically.