Rook is an AI chief of staff that lives in iMessage. No app, no dashboard. You just text it. It reads your email and calendar, sends a morning brief, preps you before meetings and tracks your packages. Text a screenshot of anything and it finds the best price and buys it on your yes. It finds and kills forgotten subscriptions. For founders: it texts you when Stripe or prod breaks, turns a texted bug into a GitHub PR and watches your launch mentions. First 10 people get Pro free for a week.