chore: add eslint-plugin-eslint-plugin

Author: JasonWeinzierl

eslint.config.mjs

@@ -6,6 +6,11 @@ import importX from 'eslint-plugin-import-x';
 import n from 'eslint-plugin-n';
 import tseslint from 'typescript-eslint';
 import vitest from '@vitest/eslint-plugin';
+import eslintPlugin from 'eslint-plugin-eslint-plugin';
+
+/** @type {import('@typescript-eslint/utils').TSESLint.FlatConfig.Config} */
+// @ts-expect-error -- eslint-plugin does not provide types.
+const eslintPluginConfig = eslintPlugin.configs['flat/recommended'];
 
 export default tseslint.config(gitignore(), {
   files: [
@@ -29,6 +34,7 @@ export default tseslint.config(gitignore(), {
     n.configs['flat/recommended-module'],
     importX.flatConfigs.recommended,
     importX.flatConfigs.typescript,
+    eslintPluginConfig,
   ],
   languageOptions: {
     parserOptions: {
@@ -59,6 +65,14 @@ export default tseslint.config(gitignore(), {
 
     'n/no-missing-import': 'off',
 
+    'eslint-plugin/require-meta-docs-description': [
+      'error',
+      {
+        pattern: '^(Enforce|Require|Disallow)',
+      },
+    ],
+    'eslint-plugin/prefer-placeholders': 'error',
+
     '@typescript-eslint/no-unnecessary-condition': 'off',
     '@typescript-eslint/restrict-template-expressions': [
       'error',

package.json

@@ -79,6 +79,7 @@
     "eslint-config-flat-gitignore": "^0.3.0",
     "eslint-doc-generator": "^1.7.1",
     "eslint-import-resolver-typescript": "^3.6.3",
+    "eslint-plugin-eslint-plugin": "^6.3.1",
     "eslint-plugin-import-x": "^4.4.0",
     "eslint-plugin-n": "^17.12.0",
     "markdownlint-cli2": "^0.14.0",

yarn.lock

@@ -2350,6 +2350,18 @@ __metadata:
   languageName: node
   linkType: hard
 
+"eslint-plugin-eslint-plugin@npm:^6.3.1":
+  version: 6.3.1
+  resolution: "eslint-plugin-eslint-plugin@npm:6.3.1"
+  dependencies:
+    "@eslint-community/eslint-utils": "npm:^4.4.0"
+    estraverse: "npm:^5.3.0"
+  peerDependencies:
+    eslint: ">=8.23.0"
+  checksum: 10c0/675d76a9302254e95e4ff28658038780f1b2d2ebbb88743fff0781f8105fd2a5f0c3b0d6c4e01f7588bf307be6eed346bad2654079d16aa73d49f50b1794c92d
+  languageName: node
+  linkType: hard
+
 "eslint-plugin-import-x@npm:^4.4.0":
   version: 4.4.0
   resolution: "eslint-plugin-import-x@npm:4.4.0"
@@ -2409,6 +2421,7 @@ __metadata:
     eslint-config-flat-gitignore: "npm:^0.3.0"
     eslint-doc-generator: "npm:^1.7.1"
     eslint-import-resolver-typescript: "npm:^3.6.3"
+    eslint-plugin-eslint-plugin: "npm:^6.3.1"
     eslint-plugin-import-x: "npm:^4.4.0"
     eslint-plugin-n: "npm:^17.12.0"
     markdownlint-cli2: "npm:^0.14.0"