diff --git a/meet-ce/backend/tests/unit/typings/document-fields-only/api-key-document.test.ts b/meet-ce/backend/tests/unit/typings/document-fields-only/api-key-document.test.ts
new file mode 100644
index 00000000..162fcd65
--- /dev/null
+++ b/meet-ce/backend/tests/unit/typings/document-fields-only/api-key-document.test.ts
@@ -0,0 +1,16 @@
+import { describe, expect, it } from '@jest/globals';
+import {
+	MEET_API_KEY_DOCUMENT_ONLY_FIELDS,
+	MeetApiKeyDocumentOnlyField
+} from '../../../../src/models/mongoose-schemas/api-key.schema.js';
+import { AssertReadonlyArrayCoversUnion } from '../type-assertions.utils.js';
+
+describe('MeetApiKeyDocument-only fields list', () => {
+	it('should include all document-only properties', () => {
+		const assertApiKeyDocumentOnlyFieldsCoverage: AssertReadonlyArrayCoversUnion<
+			MeetApiKeyDocumentOnlyField,
+			typeof MEET_API_KEY_DOCUMENT_ONLY_FIELDS
+		> = true;
+		expect(assertApiKeyDocumentOnlyFieldsCoverage).toBe(true);
+	});
+});
diff --git a/meet-ce/backend/tests/unit/typings/document-fields-only/global-config-document.test.ts b/meet-ce/backend/tests/unit/typings/document-fields-only/global-config-document.test.ts
new file mode 100644
index 00000000..a3f9d9a1
--- /dev/null
+++ b/meet-ce/backend/tests/unit/typings/document-fields-only/global-config-document.test.ts
@@ -0,0 +1,16 @@
+import { describe, expect, it } from '@jest/globals';
+import {
+	MEET_GLOBAL_CONFIG_DOCUMENT_ONLY_FIELDS,
+	MeetGlobalConfigDocumentOnlyField
+} from '../../../../src/models/mongoose-schemas/global-config.schema.js';
+import { AssertReadonlyArrayCoversUnion } from '../type-assertions.utils.js';
+
+describe('MeetGlobalConfigDocument-only fields list', () => {
+	it('should include all document-only properties', () => {
+		const assertGlobalConfigDocumentOnlyFieldsCoverage: AssertReadonlyArrayCoversUnion<
+			MeetGlobalConfigDocumentOnlyField,
+			typeof MEET_GLOBAL_CONFIG_DOCUMENT_ONLY_FIELDS
+		> = true;
+		expect(assertGlobalConfigDocumentOnlyFieldsCoverage).toBe(true);
+	});
+});
diff --git a/meet-ce/backend/tests/unit/typings/document-fields-only/recording-document.test.ts b/meet-ce/backend/tests/unit/typings/document-fields-only/recording-document.test.ts
new file mode 100644
index 00000000..4c8c43b4
--- /dev/null
+++ b/meet-ce/backend/tests/unit/typings/document-fields-only/recording-document.test.ts
@@ -0,0 +1,16 @@
+import { describe, expect, it } from '@jest/globals';
+import {
+	MEET_RECORDING_DOCUMENT_ONLY_FIELDS,
+	MeetRecordingDocumentOnlyField
+} from '../../../../src/models/mongoose-schemas/recording.schema.js';
+import { AssertReadonlyArrayCoversUnion } from '../type-assertions.utils.js';
+
+describe('MeetRecordingDocument-only fields list', () => {
+	it('should include all document-only properties', () => {
+		const assertRecordingDocumentOnlyFieldsCoverage: AssertReadonlyArrayCoversUnion<
+			MeetRecordingDocumentOnlyField,
+			typeof MEET_RECORDING_DOCUMENT_ONLY_FIELDS
+		> = true;
+		expect(assertRecordingDocumentOnlyFieldsCoverage).toBe(true);
+	});
+});
diff --git a/meet-ce/backend/tests/unit/typings/document-fields-only/room-document.test.ts b/meet-ce/backend/tests/unit/typings/document-fields-only/room-document.test.ts
new file mode 100644
index 00000000..42885662
--- /dev/null
+++ b/meet-ce/backend/tests/unit/typings/document-fields-only/room-document.test.ts
@@ -0,0 +1,16 @@
+import { describe, expect, it } from '@jest/globals';
+import {
+	MEET_ROOM_DOCUMENT_ONLY_FIELDS,
+	MeetRoomDocumentOnlyField
+} from '../../../../src/models/mongoose-schemas/room.schema.js';
+import { AssertReadonlyArrayCoversUnion } from '../type-assertions.utils.js';
+
+describe('MeetRoomDocument-only fields list', () => {
+	it('should include all document-only properties', () => {
+		const assertRoomDocumentOnlyFieldsCoverage: AssertReadonlyArrayCoversUnion<
+			MeetRoomDocumentOnlyField,
+			typeof MEET_ROOM_DOCUMENT_ONLY_FIELDS
+		> = true;
+		expect(assertRoomDocumentOnlyFieldsCoverage).toBe(true);
+	});
+});
diff --git a/meet-ce/backend/tests/unit/typings/document-fields-only/room-member-document.test.ts b/meet-ce/backend/tests/unit/typings/document-fields-only/room-member-document.test.ts
new file mode 100644
index 00000000..0d5fd059
--- /dev/null
+++ b/meet-ce/backend/tests/unit/typings/document-fields-only/room-member-document.test.ts
@@ -0,0 +1,16 @@
+import { describe, expect, it } from '@jest/globals';
+import {
+	MEET_ROOM_MEMBER_DOCUMENT_ONLY_FIELDS,
+	MeetRoomMemberDocumentOnlyField
+} from '../../../../src/models/mongoose-schemas/room-member.schema.js';
+import { AssertReadonlyArrayCoversUnion } from '../type-assertions.utils.js';
+
+describe('MeetRoomMemberDocument-only fields list', () => {
+	it('should include all document-only properties', () => {
+		const assertRoomMemberDocumentOnlyFieldsCoverage: AssertReadonlyArrayCoversUnion<
+			MeetRoomMemberDocumentOnlyField,
+			typeof MEET_ROOM_MEMBER_DOCUMENT_ONLY_FIELDS
+		> = true;
+		expect(assertRoomMemberDocumentOnlyFieldsCoverage).toBe(true);
+	});
+});
diff --git a/meet-ce/backend/tests/unit/typings/document-fields-only/user-document.test.ts b/meet-ce/backend/tests/unit/typings/document-fields-only/user-document.test.ts
new file mode 100644
index 00000000..18a72ccf
--- /dev/null
+++ b/meet-ce/backend/tests/unit/typings/document-fields-only/user-document.test.ts
@@ -0,0 +1,16 @@
+import { describe, expect, it } from '@jest/globals';
+import {
+	MEET_USER_DOCUMENT_ONLY_FIELDS,
+	MeetUserDocumentOnlyField
+} from '../../../../src/models/mongoose-schemas/user.schema.js';
+import { AssertReadonlyArrayCoversUnion } from '../type-assertions.utils.js';
+
+describe('MeetUserDocument-only fields list', () => {
+	it('should include all document-only properties', () => {
+		const assertUserDocumentOnlyFieldsCoverage: AssertReadonlyArrayCoversUnion<
+			MeetUserDocumentOnlyField,
+			typeof MEET_USER_DOCUMENT_ONLY_FIELDS
+		> = true;
+		expect(assertUserDocumentOnlyFieldsCoverage).toBe(true);
+	});
+});
diff --git a/meet-ce/backend/tests/unit/typings/type-assertions.utils.ts b/meet-ce/backend/tests/unit/typings/type-assertions.utils.ts
new file mode 100644
index 00000000..94b5b870
--- /dev/null
+++ b/meet-ce/backend/tests/unit/typings/type-assertions.utils.ts
@@ -0,0 +1,13 @@
+/**
+ * Returns the set of union members that are missing in the provided readonly array.
+ */
+export type MissingUnionMembers<TUnion, TArray extends readonly TUnion[]> = Exclude<TUnion, TArray[number]>;
+
+/**
+ * Compile-time assertion that a readonly array fully covers a union.
+ * If members are missing, TypeScript includes them in the error type.
+ */
+export type AssertReadonlyArrayCoversUnion<TUnion, TArray extends readonly TUnion[]> =
+	MissingUnionMembers<TUnion, TArray> extends never
+		? true
+		: ['Missing union members', MissingUnionMembers<TUnion, TArray>];