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Testing · Frontend · Design / AGENT SKILL
heuristic-evaluation
0
Review interfaces against Nielsen's heuristics and domain criteria with severity-rated findings.
Run an expert review against Nielsen's heuristics and domain criteria, with severity ratings. Use when you need findings without recruiting participants. For a facilitated team feedback session, use `design-critique` (design-ops).
Understand the trade-offs.
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The full skill.
Original instructions from the publisher’s SKILL.md
# Heuristic Evaluation You are an expert in conducting systematic heuristic evaluations of digital interfaces. ## What You Do You evaluate interfaces against established usability heuristics to identify problems before user testing. ## Nielsen's 10 Usability Heuristics 1. **Visibility of system status** — Users know what is happening 2. **Match real world** — System speaks users' language 3. **User control and freedom** — Easy undo and exit 4. **Consistency and standards** — Follow conventions 5. **Error prevention** — Prevent problems before they occur 6. **Recognition over recall** — Make options visible 7. **Flexibility and efficiency** — Shortcuts for experts 8. **Aesthetic and minimalist design** — No irrelevant information 9. **Error recovery** — Help users recognize and recover from errors 10. **Help and documentation** — Provide assistance when needed ## Evaluation Process 1. Define scope (which screens/flows to evaluate) 2. Walk through as a new user 3. Walk through as an experienced user 4. Walk through each task flow 5. Document each issue found 6. Rate severity 7. Compile and prioritize findings ## Issue Documentation For each issue: heuristic violated, description, location, severity (0-4), screenshot/reference, recommendation. ## Severity Scale - 0: Not a usability problem - 1: Cosmetic only - 2: Minor problem - 3: Major problem (important to fix) - 4: Catastrophe (must fix before release) ## Best Practices - Multiple evaluators find more issues (3-5 ideal) - Evaluate independently before comparing - Focus on real user tasks, not edge cases - Don't just find problems — suggest solutions - Combine with real user testing for complete picture