ux-check

From README

UX Check A screen works when a first-time user knows what they can do, does it, and always knows what just happened. This skill checks that, mechanically where possible, and makes the agent play the user instead of waiting to be told something is broken. Scope This skill owns behavior and coverage: whether controls look like what they do, whether every state exists, whether flows have an exit and an end, whether destructive actions are guarded. Neighbors own the rest. Once a state exists, its words belong to ux-writing and its visual finish to ui-polish. Motion timing lives in motion. This skill decides what exists and how it behaves, never how it reads or looks. Three contested lines, settled here: whether a confirmation should exist at all is this skill (undo beats a dialog); the wording of a dialog that must exist is ux-writing. Semantics, keyboard, alt text and focus order are this skill; the visible focus ring and contrast ratios are ui-polish.