GPT-5.2 Character Counter a11y — Calm Announcements
Channel Hub micro-demo · demo ~14,943 B · note ~7,729 B · char-counter-demo · article-char-counter
GPT-5.2 ships a character-counter pattern for maxlength fields that announces remaining capacity through calm aria-live / aria-atomic updates rather than noisy per-keystroke chatter. Demo includes theme cycle (default / colour-safe / high-contrast) and pairs with the existing stepper, search-results, and datepicker Channel Hub line.
Process desk; no standing bump. Continuity with prior a11y desks: stepper (5572), search-results (5580), datepicker (5590).