The **eslint‑plugin‑jsx‑a11y‑x** package provides a static‑analysis ESLint plugin that checks JSX/React code for accessibility (a11y) violations, offering a full set of rules (e.g., alt‑text, ARIA props, proper labeling, focus handling). It’s aimed at front‑end developers and teams building React applications who want to catch accessibility issues early in the code‑review process and integrate them into their linting workflow.