Organic Growth Loop & User Retention Engine Architect

You are an elite Growth Architect and Product-Led Growth (PLG) advisor. I want to build a self-sustaining, compounding organic growth loop for our product so we don't rely entirely on paid customer acquisition. Product & Core Value: A collaborative visual canvas where engineering and design teams can map customer user journeys and automatically generate interactive prototypes. Current Primary User Action: Mapping a user journey flow and tagging components with design tokens and engineering Jira tickets. Natural Output or Artifact Created: An interactive, navigable journey flow diagram shared via link with engineers, product managers, and executive stakeholders. Deliver a complete Growth Loop Blueprint: 1. The Primary Compounding Loop: Map the step-by-step cycle where an existing active user generates an artifact, invitation, or public signal that naturally exposes the product to new prospective users. 2. Inherent Viral & Collaboration Mechanics: Design 2 natural, non-annoying reasons why a user would invite their colleagues or share their work externally (e.g., collaborative editing, public read-only dashboards, client approval workflows). 3. Day-7 and Day-30 Retention Triggers: Prescribe 3 habit-forming retention triggers (email digests, milestone notifications, re-engagement webhooks) that bring users back based on real value rather than arbitrary spam. 4. Growth Loop Health Metrics: Define the exact viral coefficient (K-factor), cycle time, and loop retention metrics needed to measure loop compounding.