UX/UI Principles — Agent Skills Five SKILL.md files that inject UX expertise into AI agents. Works with Cursor, Windsurf, kx, Claude Code, and any framework that reads SKILL.md. Each skill runs on LLM inference alone. Add a UXUI API KEY to unlock enriched output: principle codes, 2,098+ academic citations, severity from the taxonomy, and remediation recipes. Get an API key: uxuiprinciples.com/pricing Skills Skill Description API Required uxui evaluator Evaluate interfaces against 168 research backed UX/UI principles Optional interface auditor Detect UX antipatterns using the smell taxonomy Optional ai interface reviewer Audit AI/LLM interfaces against the Part V taxonomy (44 principles) Optional flow checker Run preflight/postflight checklists against UX flows Required (pro) vibe coding advisor Inject UX context into AI coding sessions before generating components Optional Installation Copy the SKILL.md file for the skill you want into your project root (or wherever your agent framework reads skills from). [安装/使用命令见下方] With API Key (enriched output) Set UXUI API KEY in your environment: [安装/使用命令见下方] Or in your agent config: [安装/使用命令见下方] What the API Key Unlocks Without a key, each skill evaluates using LLM inference and returns generic findings. With a key (pro tier), the toolbox calls return: Principle codes ( F.1.1.02 , S.1.3.01 , etc.) from the full 168 principle taxonomy aiSummary fields with concise, citation backed descriptions businessImpact data from 2,098+ peer reviewed sources vibeCodingPrompts for component level implementation guidance UX smell remediation recipes with step by step fixes Plans: uxuiprinciples.com/pricing — API Access from $19/yr Framework Structure The skills reference the uxuiprinciples 6 part taxonomy: Part Domain Part 1 Cognitive Foundations Part 2 Visual Design Part 3 Interaction Design Part 4 Information Architecture Part 5 AI and Specialized Domains Part 6 Human Centered Design License Skills are free to use and distribute. API acc