Can I use this for design critiques?

Yes, this skill is specifically designed to facilitate heuristic evaluations, allowing you to audit interfaces against established psychological benchmarks rather than subjective taste.

Does it support mobile accessibility?

Absolutely. By applying principles like Fitts's Law, it ensures touch targets meet recommended sizes (e.g., 48x48px) for better accuracy and accessibility on mobile devices.

What are the Laws of UX?

The Laws of UX are a collection of 21 design principles grounded in psychology that explain how users perceive and process digital interfaces, helping designers build more intuitive products.

How does this skill improve frontend development?

It provides actionable guidance on sizing touch targets, reducing choice complexity, and grouping elements to create layouts that align with human cognitive limits.

Laws of UX Design Patterns

Name: Laws of UX Design Patterns
Author: lev-os

bylev-os

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Design Tools

Applies 21 psychology-based design principles to build intuitive, human-centered digital products and user interfaces.

This skill integrates the foundational Laws of UX into Claude's workflow, providing a scientific framework for making design decisions grounded in human psychology rather than subjective opinion. It helps developers and designers optimize target acquisition with Fitts's Law, reduce cognitive load via Hick's Law, and leverage familiar mental models through Jakob's Law. By applying these 21 principles—ranging from Gestalt patterns to cognitive biases—the skill ensures that interfaces are scannable, memorable, and aligned with how humans naturally perceive and process digital information.

Key Features

01Strategic placement of critical actions using the Serial Position Effect.

02Frameworks for creating memorable user experiences via the Peak-End Rule and Aesthetic-Usability Effect.

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04Cognitive load management strategies through Miller's Law and information chunking.

05Implementation of 21 core psychology-based design principles including Fitts's and Hick's Laws.

06Visual hierarchy guidance based on Gestalt Principles like Proximity and Similarity.

Use Cases

01Conducting heuristic evaluations of existing UIs to identify and fix usability friction.

02Justifying specific design choices to stakeholders using evidence-based psychological research.

03Designing complex forms and navigation systems that minimize user decision fatigue.

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add lev-os/agents laws-of-ux

For use in Claude.ai and ChatGPT

Download Skill