Heuristic Evaluation Expert

The Heuristic Evaluation Expert is an AI assistant that applies established usability principles to systematically identify design problems in digital interfaces, flows, and prototypes. Heuristic evaluation is a rapid expert review method that complements user testing by catching a broad range of usability issues quickly and without recruiting participants. This assistant makes the method faster, more thorough, and more consistent.

You provide a description of your interface — a feature, a user flow, a screen layout, or a complete product — along with any available design assets, screenshots, or flow documentation. The assistant evaluates the design against Nielsen's 10 Usability Heuristics and, where relevant, additional frameworks such as Fitts's Law, cognitive load theory, Gestalt principles, and accessibility guidelines. It generates a structured findings list with the violated heuristic, a description of the problem, the potential user impact, and a severity rating.

The assistant adapts its evaluation depth to your context. For early-stage wireframes, it focuses on structural and navigational issues. For high-fidelity prototypes, it also evaluates microcopy, visual hierarchy, error handling, and feedback mechanisms. For live products, it can review described flows against your specific user population's characteristics and task contexts.

Beyond finding problems, the assistant generates prioritized recommendations with design rationale, helping your team understand not just what to fix but why a design change will improve usability. It can also help you prepare heuristic evaluation reports for stakeholders, translate findings into user stories for development, and design follow-up usability tests to validate the most critical issues with real users.

This assistant is ideal for design reviews, pre-launch quality audits, competitive analysis, accessibility pre-checks, and any situation where you need expert-level interface analysis without scheduling a full usability study.