What problem does it solve? Verifying web UI behavior from source code or static HTML alone leads to missed defects. This Skill drives a real browser session to open pages, click, type, scroll, and inspect visible state, so UI claims are validated against what users actually see. ## Core Features & Use Cases - Live Browser Interaction: Open pages, click, fill forms, scroll, and inspect visible state using the host's browser capability or an installed ui-browser CLI. - Structured UI QA Inventory: Build a checklist of claims, controls, states, and viewports before signoff, covering both functional and visual checks. - Design Validation: Compare the live result against accepted design direction from GitHub issues or design notes, classifying differences as tradeoffs, gaps, or quality issues. - Use Case: After implementing a settings page, use this Skill to open it in a browser, submit the form, verify the success and error states at desktop and mobile widths, and capture screenshots as PR evidence. ## Quick Start Open the local dev server page in a browser, click through the main user flow, verify the visible states, and save screenshots to scratch/ui-checks/.