diff --git a/packages/apidom-parser-adapter-api-design-systems-json/.eslintignore b/packages/apidom-parser-adapter-api-design-systems-json/.eslintignore
index 856320e627..23853b909a 100644
--- a/packages/apidom-parser-adapter-api-design-systems-json/.eslintignore
+++ b/packages/apidom-parser-adapter-api-design-systems-json/.eslintignore
@@ -1,8 +1,8 @@
+/**/*.js
+/**/*.mjs
+/**/*.cjs
 /dist
-/es
-/cjs
 /types
 /config
 /.nyc_output
 /node_modules
-/**/*.js
diff --git a/packages/apidom-parser-adapter-api-design-systems-json/.gitignore b/packages/apidom-parser-adapter-api-design-systems-json/.gitignore
index 10a7f0b54d..7615bb1609 100644
--- a/packages/apidom-parser-adapter-api-design-systems-json/.gitignore
+++ b/packages/apidom-parser-adapter-api-design-systems-json/.gitignore
@@ -1,6 +1,7 @@
+/src/**/*.mjs
+/src/**/*.cjs
+/test/**/*.mjs
 /dist
-/es
-/cjs
 /types
 /NOTICE
 /swagger-api-apidom-parser-adapter-api-design-systems-json-*.tgz
diff --git a/packages/apidom-parser-adapter-api-design-systems-json/.mocharc.json b/packages/apidom-parser-adapter-api-design-systems-json/.mocharc.json
index e923c24114..f4f6530232 100644
--- a/packages/apidom-parser-adapter-api-design-systems-json/.mocharc.json
+++ b/packages/apidom-parser-adapter-api-design-systems-json/.mocharc.json
@@ -1,5 +1,5 @@
 {
   "recursive": true,
-  "spec": "test/**/*.ts",
-  "file": ["test/mocha-bootstrap.cjs"]
+  "spec": "test/**/*.mjs",
+  "file": ["test/mocha-bootstrap.mjs"]
 }
diff --git a/packages/apidom-parser-adapter-api-design-systems-json/cjs/adapter.cjs b/packages/apidom-parser-adapter-api-design-systems-json/cjs/adapter.cjs
new file mode 100644
index 0000000000..a33b4ab560
--- /dev/null
+++ b/packages/apidom-parser-adapter-api-design-systems-json/cjs/adapter.cjs
@@ -0,0 +1,32 @@
+"use strict";
+
+var _interopRequireDefault = require("@babel/runtime-corejs3/helpers/interopRequireDefault").default;
+var _interopRequireWildcard = require("@babel/runtime-corejs3/helpers/interopRequireWildcard").default;
+exports.__esModule = true;
+exports.parse = exports.namespace = exports.mediaTypes = exports.detectionRegExp = exports.detect = void 0;
+var _ramda = require("ramda");
+var _ramdaAdjunct = require("ramda-adjunct");
+var _apidomCore = require("@swagger-api/apidom-core");
+var _apidomParserAdapterJson = require("@swagger-api/apidom-parser-adapter-json");
+var _apidomNsApiDesignSystems = _interopRequireWildcard(require("@swagger-api/apidom-ns-api-design-systems"));
+var _mediaTypes = _interopRequireDefault(require("./media-types.cjs"));
+exports.mediaTypes = _mediaTypes.default;
+const detectionRegExp = exports.detectionRegExp = /"version"\s*:\s*"(?<version_json>2021-05-07)"/;
+const detect = async source => detectionRegExp.test(source) && (await (0, _apidomParserAdapterJson.detect)(source));
+exports.detect = detect;
+const parse = async (source, options = {}) => {
+  const refractorOpts = (0, _ramda.propOr)({}, 'refractorOpts', options);
+  const parserOpts = (0, _ramda.omit)(['refractorOpts'], options);
+  const parseResultElement = await (0, _apidomParserAdapterJson.parse)(source, parserOpts);
+  const {
+    result
+  } = parseResultElement;
+  if ((0, _ramdaAdjunct.isNotUndefined)(result)) {
+    const mainElement = _apidomNsApiDesignSystems.MainElement.refract(result, refractorOpts);
+    mainElement.classes.push('result');
+    parseResultElement.replaceResult(mainElement);
+  }
+  return parseResultElement;
+};
+exports.parse = parse;
+const namespace = exports.namespace = (0, _apidomCore.createNamespace)(_apidomNsApiDesignSystems.default);
\ No newline at end of file
diff --git a/packages/apidom-parser-adapter-api-design-systems-json/cjs/media-types.cjs b/packages/apidom-parser-adapter-api-design-systems-json/cjs/media-types.cjs
new file mode 100644
index 0000000000..c6a4dfe50c
--- /dev/null
+++ b/packages/apidom-parser-adapter-api-design-systems-json/cjs/media-types.cjs
@@ -0,0 +1,7 @@
+"use strict";
+
+exports.__esModule = true;
+exports.default = void 0;
+var _apidomNsApiDesignSystems = require("@swagger-api/apidom-ns-api-design-systems");
+const jsonMediaTypes = new _apidomNsApiDesignSystems.ApiDesignSystemsMediaTypes(..._apidomNsApiDesignSystems.mediaTypes.filterByFormat('generic'), ..._apidomNsApiDesignSystems.mediaTypes.filterByFormat('json'));
+var _default = exports.default = jsonMediaTypes;
\ No newline at end of file
diff --git a/packages/apidom-parser-adapter-api-design-systems-json/es/adapter.mjs b/packages/apidom-parser-adapter-api-design-systems-json/es/adapter.mjs
new file mode 100644
index 0000000000..33912bf955
--- /dev/null
+++ b/packages/apidom-parser-adapter-api-design-systems-json/es/adapter.mjs
@@ -0,0 +1,23 @@
+import { propOr, omit } from 'ramda';
+import { isNotUndefined } from 'ramda-adjunct';
+import { createNamespace } from '@swagger-api/apidom-core';
+import { parse as parseJSON, detect as detectJSON } from '@swagger-api/apidom-parser-adapter-json';
+import apiDesignSystemsNamespace, { MainElement } from '@swagger-api/apidom-ns-api-design-systems';
+export { default as mediaTypes } from "./media-types.mjs";
+export const detectionRegExp = /"version"\s*:\s*"(?<version_json>2021-05-07)"/;
+export const detect = async source => detectionRegExp.test(source) && (await detectJSON(source));
+export const parse = async (source, options = {}) => {
+  const refractorOpts = propOr({}, 'refractorOpts', options);
+  const parserOpts = omit(['refractorOpts'], options);
+  const parseResultElement = await parseJSON(source, parserOpts);
+  const {
+    result
+  } = parseResultElement;
+  if (isNotUndefined(result)) {
+    const mainElement = MainElement.refract(result, refractorOpts);
+    mainElement.classes.push('result');
+    parseResultElement.replaceResult(mainElement);
+  }
+  return parseResultElement;
+};
+export const namespace = createNamespace(apiDesignSystemsNamespace);
\ No newline at end of file
diff --git a/packages/apidom-parser-adapter-api-design-systems-json/es/media-types.mjs b/packages/apidom-parser-adapter-api-design-systems-json/es/media-types.mjs
new file mode 100644
index 0000000000..630fd0e4b4
--- /dev/null
+++ b/packages/apidom-parser-adapter-api-design-systems-json/es/media-types.mjs
@@ -0,0 +1,3 @@
+import { mediaTypes, ApiDesignSystemsMediaTypes } from '@swagger-api/apidom-ns-api-design-systems';
+const jsonMediaTypes = new ApiDesignSystemsMediaTypes(...mediaTypes.filterByFormat('generic'), ...mediaTypes.filterByFormat('json'));
+export default jsonMediaTypes;
\ No newline at end of file
diff --git a/packages/apidom-parser-adapter-api-design-systems-json/package.json b/packages/apidom-parser-adapter-api-design-systems-json/package.json
index 7d63bd0c54..c4c26e4878 100644
--- a/packages/apidom-parser-adapter-api-design-systems-json/package.json
+++ b/packages/apidom-parser-adapter-api-design-systems-json/package.json
@@ -9,24 +9,24 @@
   "type": "module",
   "sideEffects": false,
   "unpkg": "./dist/apidom-parser-adapter-api-design-systems-json.browser.min.js",
-  "main": "./cjs/adapter.cjs",
+  "main": "./src/adapter.cjs",
   "exports": {
     "types": "./types/dist.d.ts",
-    "import": "./es/adapter.mjs",
-    "require": "./cjs/adapter.cjs"
+    "import": "./src/adapter.mjs",
+    "require": "./src/adapter.cjs"
   },
   "types": "./types/dist.d.ts",
   "scripts": {
     "build": "npm run clean && run-p --max-parallel ${CPU_CORES:-2} typescript:declaration build:es build:cjs build:umd:browser",
-    "build:es": "cross-env BABEL_ENV=es babel src --out-dir es --extensions '.ts' --out-file-extension '.mjs' --root-mode 'upward'",
-    "build:cjs": "cross-env BABEL_ENV=cjs babel src --out-dir cjs --extensions '.ts' --out-file-extension '.cjs' --root-mode 'upward'",
+    "build:es": "cross-env BABEL_ENV=es babel src --out-dir src --extensions '.ts' --out-file-extension '.mjs' --root-mode 'upward'",
+    "build:cjs": "cross-env BABEL_ENV=cjs babel src --out-dir src --extensions '.ts' --out-file-extension '.cjs' --root-mode 'upward'",
     "build:umd:browser": "cross-env BABEL_ENV=browser webpack --config config/webpack/browser.config.js --progress",
     "lint": "eslint ./",
     "lint:fix": "eslint ./ --fix",
-    "clean": "rimraf ./es ./cjs ./dist ./types",
+    "clean": "rimraf --glob 'src/**/*.mjs' 'src/**/*.cjs' 'test/**/*.mjs' ./dist ./types",
     "typescript:check-types": "tsc --noEmit",
     "typescript:declaration": "tsc -p declaration.tsconfig.json && rollup -c config/rollup/types.dist.js",
-    "test": "cross-env NODE_ENV=test BABEL_ENV=cjs mocha",
+    "test": "npm run build:es && cross-env BABEL_ENV=es babel test --out-dir test --extensions '.ts' --out-file-extension '.mjs' --root-mode 'upward' && cross-env NODE_ENV=test mocha",
     "prepack": "copyfiles -u 3 ../../LICENSES/* LICENSES && copyfiles -u 2 ../../NOTICE .",
     "postpack": "rimraf NOTICE LICENSES"
   },
diff --git a/packages/apidom-parser-adapter-api-design-systems-json/test/.eslintrc b/packages/apidom-parser-adapter-api-design-systems-json/test/.eslintrc
index 85759a803c..c47eea4f48 100644
--- a/packages/apidom-parser-adapter-api-design-systems-json/test/.eslintrc
+++ b/packages/apidom-parser-adapter-api-design-systems-json/test/.eslintrc
@@ -24,15 +24,32 @@
     "mocha/no-top-level-hooks": 2,
     "mocha/no-identical-title": 2,
     "mocha/no-nested-tests": 2,
-    "mocha/no-exclusive-tests": 2
-  },
-  "overrides": [{
-    "files": ["mocha-bootstrap.cjs"],
-    "parserOptions": {
-      "sourceType": "script"
-    },
-    "rules": {
-      "@typescript-eslint/no-var-requires": 0
-    }
-  }]
+    "mocha/no-exclusive-tests": 2,
+    "no-underscore-dangle": 0,
+    "import/no-relative-packages": 0,
+    "@typescript-eslint/naming-convention": [
+      "error",
+      {
+        "selector": "variable",
+        "format": ["camelCase", "PascalCase", "UPPER_CASE"],
+        "leadingUnderscore": "forbid"
+      },
+      {
+        "selector": "variable",
+        "format": null,
+        "filter": {
+          "regex": "^__dirname$",
+          "match": true
+        }
+      },
+      {
+        "selector": "variable",
+        "format": null,
+        "filter": {
+          "regex": "^__filename$",
+          "match": true
+        }
+      }
+    ]
+  }
 }
diff --git a/packages/apidom-parser-adapter-api-design-systems-json/test/__snapshots__/adapter.ts.snap b/packages/apidom-parser-adapter-api-design-systems-json/test/__snapshots__/adapter.mjs.snap
similarity index 100%
rename from packages/apidom-parser-adapter-api-design-systems-json/test/__snapshots__/adapter.ts.snap
rename to packages/apidom-parser-adapter-api-design-systems-json/test/__snapshots__/adapter.mjs.snap
diff --git a/packages/apidom-parser-adapter-api-design-systems-json/test/adapter.ts b/packages/apidom-parser-adapter-api-design-systems-json/test/adapter.ts
index db3e7522da..303c1c64cf 100644
--- a/packages/apidom-parser-adapter-api-design-systems-json/test/adapter.ts
+++ b/packages/apidom-parser-adapter-api-design-systems-json/test/adapter.ts
@@ -1,11 +1,13 @@
 import fs from 'node:fs';
 import path from 'node:path';
+import { fileURLToPath } from 'node:url';
 import { assert, expect } from 'chai';
 import { isParseResultElement, sexprs } from '@swagger-api/apidom-core';
 import { isMainElement } from '@swagger-api/apidom-ns-api-design-systems';
 
 import * as adapter from '../src/adapter';
 
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
 const jsonSpec = fs
   .readFileSync(path.join(__dirname, 'fixtures', 'api-design-systems.json'))
   .toString();
diff --git a/packages/apidom-parser-adapter-api-design-systems-json/test/mocha-bootstrap.cjs b/packages/apidom-parser-adapter-api-design-systems-json/test/mocha-bootstrap.cjs
deleted file mode 100644
index bc8ce3c8fc..0000000000
--- a/packages/apidom-parser-adapter-api-design-systems-json/test/mocha-bootstrap.cjs
+++ /dev/null
@@ -1,15 +0,0 @@
-/* eslint-disable */
-require('@babel/register')({ extensions: ['.js', '.ts'], rootMode: 'upward' });
-
-/**
- * Configure snapshot testing.
- */
-const chai = require('chai');
-const { jestSnapshotPlugin, addSerializer } = require('mocha-chai-jest-snapshot');
-
-const jestApiDOMSerializer = require('../../../scripts/jest-serializer-apidom.cjs');
-const jestStringSerializer = require('../../../scripts/jest-serializer-string.cjs');
-
-chai.use(jestSnapshotPlugin());
-addSerializer(jestApiDOMSerializer);
-addSerializer(jestStringSerializer);
diff --git a/packages/apidom-parser-adapter-api-design-systems-json/test/mocha-bootstrap.ts b/packages/apidom-parser-adapter-api-design-systems-json/test/mocha-bootstrap.ts
new file mode 100644
index 0000000000..4f8d8adf2e
--- /dev/null
+++ b/packages/apidom-parser-adapter-api-design-systems-json/test/mocha-bootstrap.ts
@@ -0,0 +1,11 @@
+import * as chai from 'chai';
+import { jestSnapshotPlugin, addSerializer } from 'mocha-chai-jest-snapshot';
+
+// @ts-ignore
+import * as jestApiDOMSerializer from '../../../scripts/jest-serializer-apidom';
+// @ts-ignore
+import * as jestStringSerializer from '../../../scripts/jest-serializer-string';
+
+chai.use(jestSnapshotPlugin());
+addSerializer(jestApiDOMSerializer);
+addSerializer(jestStringSerializer);