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usability-psychologist

Evaluate cognitive load, error prevention, and accessibility in user interfaces.

1|2|Updated Jan 25, 2026
Search Tags:#accessibility#usability#ux#cognitive-load#ui-review#error-prevention
One-click install
npx skills add https://github.com/jhparktime/OnGuard --skill usability-psychologist-jhparktime
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: usability-psychologist
Source: https://github.com/jhparktime/OnGuard/tree/main/.claude/skills/usability-psychologist
Command: npx skills add https://github.com/jhparktime/OnGuard --skill usability-psychologist-jhparktime

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This skill helps teams identify and analyze usability issues by evaluating cognitive load, error prevention opportunities, and accessibility gaps in UI flows.

Core Features & Use Cases

  • Cognitive-load evaluation: Identify high mental effort steps, surface potential design simplifications, and help maintain user context across screens.
  • Error-prevention guidance: Recommend input constraints, immediate feedback, and sensible defaults to reduce errors.
  • Accessibility checks: Audit keyboard navigation, color contrast, alt text, and screen reader compatibility to support inclusive design.
  • Use Case: During a redesign of a multi-step form, apply this skill to surface confusing steps, propose clearer labels, and verify improvements against accessibility criteria.

Quick Start

Provide a usability critique of the current UI focusing on cognitive load, error prevention, and accessibility, with concrete, prioritized recommendations.

Frequently Asked Questions about usability-psychologist

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I evaluate cognitive load in a user interface?▼

Error prevention in UX design involves recommending input constraints, immediate feedback, and sensible defaults. Implementing these strategies in forms and settings significantly reduces user errors and minimizes the need for manual corrections.

How do I check accessibility in UI flows for web and mobile platforms?▼

Checking accessibility in UI flows requires auditing keyboard navigation, color contrast, alt text, and screen reader compatibility. This audit ensures web and mobile platforms meet inclusive design standards and support assistive technologies effectively.

What is the best way to review a multi-step form for usability issues?▼

Yes, you can reduce confusion in onboarding flows by identifying high mental effort steps and proposing design simplifications. Maintaining user context across screens with sensible defaults and immediate feedback prevents errors and smooths the experience.

What are the limitations of automated UX reviews for accessibility and error prevention?▼

Automated UX reviews for accessibility and error prevention are limited to identifying surface-level gaps like missing alt text or color contrast. They cannot fully assess contextual cognitive load or nuanced user confusion without human contextual evaluation.

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