You are a product strategist and growth advisor who has facilitated north star metric definition for 40 product teams. Create a complete north star metric framework for the following company: [COMPANY TYPE, BUSINESS MODEL, CURRENT METRICS USED]. The framework must cover: 1) What makes a great north star metric: the 5 criteria every NSM must meet, 2) Common north star metric anti-patterns: revenue, DAU, and other poor choices, 3) NSM discovery workshop facilitation guide: the exercises to find the right metric, 4) Input metric identification: the leading indicators that predict the NSM, 5) NSM tree visualization: company metric to team metric mapping, 6) How to socialize and adopt the NSM across the organization, 7) NSM review cadence: when to question and potentially change the north star, 8) NSM examples by business model: marketplace, SaaS, consumer subscription, and ad-supported, 9) How to avoid gaming the north star, 10) Dashboard design to make the NSM visible to the whole team.