What problem does it solve? Products often fail to retain users because they lack a deliberate engagement loop — users try once and never return. This Skill diagnoses why a product doesn't stick and designs a complete retention loop that moves users from external prompts to internal emotional triggers. ## Core Features & Use Cases - Hook Model Loop Design: Maps the four phases — Trigger, Action, Variable Reward, Investment — and scores the loop 0-10 to find the weakest phase. - Habit Testing & Measurement: Applies the 5% rule, habit-path analysis, and aha-moment discovery to verify whether habits are actually forming. - Ethics Gate: Runs every design through the Manipulation Matrix and dark-pattern checks to ensure engagement serves users rather than exploiting them. - Use Case: A product manager notices users sign up but never return. Use this Skill to identify the internal emotional trigger via 5-Whys, simplify the core action, add variable rewards across Tribe/Hunt/Self, and sequence investment so it loads the next trigger. ## Quick Start Use the habit loops skill to diagnose why users aren't coming back to my product and design an ethical retention loop.
