What problem does it solve? AI-generated and hand-built UIs often ship with accessibility defects that exclude real users: low-contrast text, removed focus outlines, mouse-only interactions, color-only status feedback, and forms hidden behind mobile keyboards. This Skill gives coding agents concrete rules and a deterministic contrast checker to catch these issues before delivery. ## Core Features & Use Cases - WCAG Contrast Verification: Compute contrast ratios via a bundled Python script, the WCAG 2.x formula, or a precomputed reference table, with PASS/FAIL verdicts for normal (4.5:1) and large (3.0:1) text. - Keyboard and Focus Rules: Enforce reachable tab order, visible focus indicators at 3:1 contrast, Escape-closable dialogs, and a ban on outline: none without replacement. - State and Mobile Checks: Require perceivable empty/loading/error states, non-color-only feedback, 200% text zoom without clipping, and inputs that scroll above the on-screen keyboard. - Use Case: While building a settings page, run contrast-check.py "#FFFFFF" "#777777" to confirm a muted label fails normal-text contrast (4.48 < 4.5), then pick a darker shade before shipping. ## Quick Start Ask the agent to review your UI code against the antislop-human checklist and verify every text and background color pairing with the bundled contrast checker script.
