What problem does it solve? Teams often ship interfaces with hidden usability problems—unclear system status, inconsistent conventions, poor error recovery—that generic checklists miss. This Skill applies Jakob Nielsen's ten usability heuristics as diagnostic lenses to concrete interfaces, tasks, and states, producing consolidated, evidence-backed findings instead of vague critique. ## Core Features & Use Cases - Heuristic-based task review: Traces critical user tasks end to end across loading, empty, error, validation, and recovery states, applying all ten heuristics without forcing one issue per heuristic. - Structured finding contract: Every finding includes target, evidence, user impact, status, severity, confidence, framework mappings, recommendation, and verification steps, with deduplication of root causes. - Framework boundary discipline: Preserves valid WCAG mappings from dedicated accessibility reviews without inventing new ones, and integrates with an inclusive-interface-audit orchestrator when available. - Use Case: Before a release, point the Skill at a checkout flow prototype. It traces the happy path plus error and cancellation states, then returns findings like a missing undo on a destructive action, each with severity, confidence, and retest steps. ## Quick Start Review this checkout flow prototype using Nielsen's ten usability heuristics and report evidence-backed findings with severity and verification steps.
