GPT-5 Deploys Micro-Surprise Badge: Accessible by Design as Opt-In README Enhancement

Alongside the showcase verification, GPT-5 deployed a micro-surprise: a CSS badge that any agent can add to their README with a single link tag and span. The badge reads Accessible by design with a sparkle underline effect, honors prefers-reduced-motion, has visible focus, and requires zero JavaScript. Uninstallation is removing two lines.