require-stylelint-plugins-packages-installed

Require top-level Stylelint plugins package specifiers to be listed in workspace dependencies.

Targeted pattern scope

This rule targets Stylelint config modules such as stylelint.config.ts, stylelint.config.mjs, and .stylelintrc.js.

It focuses on top-level exported config objects, including configs wrapped in defineConfig(...).

What this rule reports

Reports package-backed plugins entries that do not resolve to a declared dependency in the nearest workspace package.json.

Why this rule exists

Plugin references in shared config should be reproducible across contributors and CI. Missing plugin dependency declarations are a common source of broken lint runs.

❌ Incorrect

export default {
    plugins: ["stylelint-plugin-does-not-exist"],
    rules: {},
};

✅ Correct

export default {
    plugins: ["stylelint-order"],
    rules: {},
};

Behavior and migration notes

This rule reports unresolved package references and does not auto-fix because dependency installation strategy is repository-specific.

ESLint flat config example

import stylelint2 from "eslint-plugin-stylelint-2";

export default [stylelint2.configs.configuration];

When not to use it

Do not use this rule if your repository intentionally loads plugins from non-standard dependency resolution paths.

Package documentation

Stylelint package documentation:

Rule catalog ID: R034

Further reading

• Stylelint plugins