UX Expert

UX research and design critique, the reasoning BEFORE a wireframe and the judgment AFTER a build.

Why use it

• Design decisions defended by taste instead of evidence.
• "Analyze this design" answered with guessed hex codes and invented font sizes.
• A reviewer who recites all ten heuristics and prioritizes nothing.

What it does

• research, pick the method that fits the question × product stage, and mine the free evidence first.
• personas, 2-4 relevance-tested personas, each carrying its provenance (grounded, or clearly labelled proto).
• storyboard, one persona · one scenario · one path, with an emotion per panel.
• heuristics, Nielsen H1-H10 applied selectively: critique, or design guidance handed to the designer.
• review, the combined lens (usability · cognitive load/conversion · craft · a11y · AI-product) with a verdict and max 3 priority actions.
• analysis, design forensics: measured hexes, type scale, spacing ladder, contrast pairs, composition metrics, tokens.

Benefits

• Numbers, not opinions. Every hex, size and ratio is measured, anything inferred is labelled.
• Findings you can act on today: 3-5 issues, each with its cost, and max 3 priority actions.
• Know who you're designing for before the first wireframe, and whether the build served them after.
• No turf wars. It critiques and routes; it never touches your design system or your code.

Install

Download this skill and copy the ux-expert folder to .claude/skills/ux-expert/ in your project, or to ~/.claude/skills/ux-expert/ to use it in every project. Claude Code finds it on its own; you can also call it with /ux-expert.

Part of the Web Dev Design Pipeline bundle. To get the whole set as a Claude Code plugin: /plugin marketplace add endorphin-ai/hasbrains-agent-kit, then /plugin install web-dev@hasbrains-agent-kit.

Source: endorphin-ai/hasbrains-agent-kit. License: MIT.