laws-of-uxlisted

# Laws of UX — Web App Design Skill > **Source:** [lawsofux.com](https://lawsofux.com) by Jon Yablonski · 30 evidence-based psychology laws for UX design --- ## How This Skill Works ### Mode A: Quick Question (one law, yes/no fix) User asks: *"Is this button big enough?"* / *"Should I add another nav item?"* 1. Read **Quick Reference** table → find the relevant law(s) 2. Read **that law's detail section only** 3. Answer directly: principle + ✅/❌ verdict + one concrete suggestion 4. Skip everything else (routing, conflicts, scripts, checklist) ### Mode B: Full Review / Design Session User asks: *"Review my dashboard"* / *"Help me design a checkout flow"* 1. **Understand context** — what's being built? (Use Context Routing below) 2. **Select 3–7 relevant laws** from routing table + Quick Reference 3. **Give specific feedback** per law: principle → their code/UI → concrete fix → severity (🔴🟡🔵) 4. **Check conflicts** between selected laws → [When Laws Conflict](#when-laws-conflict) 5. **Output prioritized findings list** using [Review Workflow](#review-workflow) 6. **Stakeholder scripts** (optional) — if user needs to defend decisions → [Stakeholder Communication](#stakeholder-communication) --- ## Context Routing: What You're Building → Which Laws Matter ### Forms & Input (signup, checkout, settings, search) | Priority | Law | Why | |---|---|---| | 🔴 Critical | Postel's Law | Accept varied input, normalize internally | | 🔴 Critical | Hick's Law | Break long for