What problem does it solve? Designers and product teams often struggle to identify why an interface underperforms or how to improve it systematically. This Skill evaluates a design file, URL, or screenshot against established UX psychology principles and produces concrete, principle-backed improvement proposals. ## Core Features & Use Cases - Principle-Based Analysis: Evaluates designs against 30+ UX psychology laws organized by category, including cognitive load, anchoring, social proof, loss aversion, and the peak-end rule. - Structured Improvement Proposals: Outputs a table mapping each applicable principle to the current problem, a specific improvement, and the expected effect. - Dark Pattern Guardrails: Flags risks of over-applying persuasive principles and keeps recommendations user-first. - Use Case: Submit a landing page screenshot and receive an analysis showing that the CTA suffers from banner blindness, the pricing section lacks anchoring, and the checkout flow could benefit from the goal-gradient effect. ## Quick Start Ask the AI to analyze your design file, URL, or screenshot using UX psychology principles and suggest improvements.