Es X Eslint Support Update is an agent skill from eslint-community/eslint-plugin-es-x. Update eslint-plugin-es-x ESLint peer support in its own dedicated PR. Use during major release preparation or support policy changes to check the latest stable ESLint version and drop support for older ESLint major/minor lines by raising the minimum peer dependency without changing the Node.js engine range, updating peerDependencies, public documentation requirements, ESLint CI matrix entries, lockfile root metadata, release notes, and verification.
Its SKILL.md is about 800 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Development, covering Linting and formatting. It works with ESLint, Node.js, npm and JavaScript. The repository describes itself as: ESLint plugin about ECMAScript syntactic features. The licence is MIT.