mongodb-js · Anemy · Dec 18, 2025 · Copilot · Dec 18, 2025 · Anemy
@@ -16,10 +16,11 @@
   "dependencies": {
     "@babel/core": "^7.24.3",
     "@babel/eslint-parser": "^7.14.3",
-    "@mongodb-js/eslint-config-devtools": "^0.9.9",
+    "@mongodb-js/eslint-config-devtools": "^0.11.2",
     "@mongodb-js/eslint-plugin-compass": "^1.2.18",
-    "@typescript-eslint/eslint-plugin": "^8.49.0",
-    "@typescript-eslint/parser": "^8.49.0",
+    "@mongodb-js/eslint-plugin-devtools": "^0.3.2",
+    "@typescript-eslint/eslint-plugin": "^8.50.0",
+    "@typescript-eslint/parser": "^8.50.0",
     "eslint": "^8.57.1",
     "eslint-config-prettier": "^8.3.0",
     "eslint-plugin-chai-friendly": "^1.1.0",

@@ -104,8 +104,8 @@
       "cheerio": "1.0.0-rc.10"
     },
     "@mongodb-js/eslint-config-devtools": {
-      "@typescript-eslint/eslint-plugin": "^8.49.0",
-      "@typescript-eslint/parser": "^8.49.0",
+      "@typescript-eslint/eslint-plugin": "^8.50.0",
+      "@typescript-eslint/parser": "^8.50.0",
       "eslint": "^8.57.1",
       "eslint-plugin-jsx-a11y": "^6.10.2",
       "eslint-plugin-react": "^7.37.5",

@@ -14,7 +14,7 @@ describe('side-panel module', function () {
     beforeEach(async function () {
       store = (await configureStore()).plugin.store;
 
-      const localStorageValues: Record<string, string> = {};
+      const localStorageValues: Record<string, string> = Object.create(null);
 
       fakeLocalStorage = sinon.stub(global, 'localStorage').value({
         getItem: sinon.fake((key: string) => {

@@ -237,7 +237,12 @@ describe('prompts', function () {
     ];
 
     for (const testCase of testCases) {
-      const summary: Record<string, string | boolean> = {
+      const summary: {
+        type: string;
+        isTimeSeries?: boolean;
+        isView?: boolean;
+        subTab?: string;
+      } = {
         type: testCase.context.activeWorkspace?.type || 'No active tab',
       };
       if (testCase.context.activeCollectionMetadata?.isTimeSeries) {

@@ -12,9 +12,11 @@ export type CollectionBadgeType =
   | 'fle'
   | 'clustered';
 
-const badges: Record<
-  CollectionBadgeType,
-  { label: React.ReactNode; variant?: BadgeVariant }
+const badges: Readonly<
+  Record<
+    CollectionBadgeType,
+    { label: React.ReactNode; variant?: BadgeVariant }
+  >
 > = {
   readonly: {
     label: 'READ-ONLY',

@@ -12,9 +12,8 @@ export const StepButtonLabelMap = {
 
 // Map of the current mock data generator step to the next step or 'finish' if the user is on the last step.
 // For the purposes of telemetry tracking the step progression in the modal.
-export const MOCK_DATA_GENERATOR_STEP_TO_NEXT_STEP_MAP: Record<
-  MockDataGeneratorStep,
-  MockDataGeneratorStep | 'finish'
+export const MOCK_DATA_GENERATOR_STEP_TO_NEXT_STEP_MAP: Readonly<
+  Record<MockDataGeneratorStep, MockDataGeneratorStep | 'finish'>
 > = {
   [MockDataGeneratorSteps.SCHEMA_CONFIRMATION]:
     MockDataGeneratorSteps.SCHEMA_EDITOR,
@@ -51,9 +50,8 @@ export const MongoDBFieldTypeValues: MongoDBFieldType[] = [
  * Not all Faker methods are included here.
  * More can be found in the Faker.js API: https://v9.fakerjs.dev/api/
  */
-export const MONGO_TYPE_TO_FAKER_METHODS: Record<
-  MongoDBFieldType,
-  Array<{ method: string; description?: string }>
+export const MONGO_TYPE_TO_FAKER_METHODS: Readonly<
+  Record<MongoDBFieldType, Array<{ method: string; description?: string }>>
 > = {
   String: [
     { method: 'lorem.word', description: 'Single word' },

@@ -203,7 +203,7 @@ function isPrimitiveSchemaType(type: SchemaType): type is PrimitiveSchemaType {
  * The result is used for the Mock Data Generator LLM call and script generation.
  */
 export function processSchema(schema: Schema): ProcessSchemaResult {
-  const fieldInfo: Record<string, FieldInfo> = {};
+  const fieldInfo: Record<string, FieldInfo> = Object.create(null);
   const arrayLengthMap: ArrayLengthMap = {};
 
   if (!schema.fields) {

@@ -30,7 +30,7 @@ const buttonSizeStyle: Record<ItemActionButtonSize, string | undefined> = {
     width: `${20}px !important`,
     height: `${20}px !important`,
   }),
-};
+} as const;
 
 export type SmallIconButtonProps = {
   glyph: React.ReactChild;

@@ -51,7 +51,7 @@ const VALUE_COLOR_BY_THEME_AND_TYPE: Record<
     String: variantColors.light[7],
     ObjectId: variantColors.light[5],
   },
-};
+} as const;
 
 const bsonValue = css({
   whiteSpace: 'nowrap',

@@ -73,7 +73,7 @@ const StatusMessages: Record<Status, string> = {
   ['DeleteStart']: 'Removing document…',
   ['DeleteError']: '',
   ['DeleteSuccess']: 'Document deleted.',
-};
+} as const;
 
 function useHadronDocumentStatus(
   doc: HadronDocument,

@@ -353,7 +353,8 @@ export const DrawerAnchor: React.FunctionComponent = ({ children }) => {
         if (!drawerEl) {
           return;
         }
-        const nodes: Record<string, HTMLButtonElement | undefined> = {};
+        const nodes: Record<string, HTMLButtonElement | undefined> =
+          Object.create(null);
         for (const item of toolbarData) {
           if (!item.guideCue) {
             continue;

@@ -210,8 +210,8 @@ describe('useContextMenu', function () {
         expect(screen.getByTestId('menu-item-Parent Item 2')).to.exist;
 
         // Should not show child items
-        expect(() => screen.getByTestId('menu-item-Child Item 1')).to.throw;
-        expect(() => screen.getByTestId('menu-item-Child Item 2')).to.throw;
+        expect(screen.queryByTestId('menu-item-Child Item 1')).to.not.exist;
+        expect(screen.queryByTestId('menu-item-Child Item 2')).to.not.exist;
       });
 
       it('shows both parent and child items when right clicking child area', function () {

@@ -118,7 +118,7 @@ const featureDescription: Record<
     title: 'Interactive Diagram Analysis',
     subtitle: 'Explore and annotate interactive diagrams',
   },
-};
+} as const;
 
 const FeaturesList: React.FunctionComponent<{ features: Feature[] }> = ({
   features,

@@ -25,7 +25,7 @@ export const getHighlightedFields = (
     return NO_HIGHLIGHTED_FIELDS;
   const { id } = selectedItems;
   const { relationship } = relationships?.find((rel) => rel.id === id) ?? {};
-  const selection: Record<string, string[][] | undefined> = {};
+  const selection: Record<string, string[][] | undefined> = Object.create(null);
   if (relationship?.[0].ns && relationship?.[0].fields) {
     selection[relationship[0].ns] = [relationship[0].fields];
   }

@@ -426,7 +426,7 @@ const colorMap: Record<string, string> = {
   color7: 'Pink',
   color8: 'Orange',
   color9: 'Yellow',
-};
+} as const;
 
 function colorValueToName(color: string): string {
   if (colorMap[color]) {

@@ -19,7 +19,7 @@ const indexTypeToIndexSelectOption: Record<IndexType, string> = {
   '-1': '-1 (desc)',
   '2dsphere': '2dsphere',
   text: 'text (full text search)',
-};
+} as const;
 
 export async function createIndex(
   browser: CompassBrowser,

@@ -821,7 +821,7 @@ export async function startBrowser(
         },
       },
     },
-  };
+  } as const;
 
   // webdriverio removed RemoteOptions. It is now
   // Capabilities.WebdriverIOConfig, but Capabilities is not exported

@@ -106,7 +106,7 @@ describe('Collection ai query (with mocked backend)', function () {
       expect(queryRequest.req.headers).to.have.property('x-client-request-id');
       expect(queryRequest.req.headers).to.have.property('entrypoint');
       expect(queryRequest.content.model).to.equal('mongodb-slim-latest');
-      expect(queryRequest.content.instructions).to.be.string;
+      expect(queryRequest.content.instructions).to.be.a('string');
       expect(queryRequest.content.metadata).to.have.property('userId');
       expect(queryRequest.content.metadata.store).to.have.equal('true');
       expect(queryRequest.content.metadata.sensitiveStorage).to.have.equal(

@@ -44,8 +44,8 @@ async function openMenuForQueryItem(
   await browser.$(Selectors.SavedItemMenu).waitForDisplayed();
 }
 
-const knownQueryNames: Record<string, true> = {};
-const knownQueryFilters: Record<string, true> = {};
+const knownQueryNames: Record<string, true> = Object.create(null);
+const knownQueryFilters: Record<string, true> = Object.create(null);
 
 async function saveQuery(
   browser: CompassBrowser,

@@ -609,7 +609,7 @@ export const languages: Record<EditorLanguage, () => LanguageSupport> = {
   'javascript-expression': () => {
     return new LanguageSupport(javascriptExpression);
   },
-};
+} as const;
 
 export const languageName = Facet.define<EditorLanguage>({});
 

@@ -541,7 +541,7 @@ export class AtlasAiService {
       const newSchema: Record<
         string,
         Omit<MockDataSchemaRawField, 'sampleValues'>
-      > = {};
+      > = Object.create(null);
       for (const [k, v] of Object.entries(schema)) {
         newSchema[k] = { type: v.type };
       }

@@ -118,7 +118,7 @@ const disabledButtonStyles: Record<Theme, string> = {
       },
     },
   }),
-};
+} as const;
 
 const CloudAIOptInBannerContent: React.FunctionComponent<{
   isProjectAIEnabled: boolean;

@@ -42,37 +42,33 @@ export function parseXmlToJsonResponse(
   );
 
   // Currently the prompt forces LLM to return xml-styled data
-  const result: Record<(typeof expectedTags)[number], string | null> = {
-    filter: null,
-    project: null,
-    sort: null,
-    skip: null,
-    limit: null,
-    aggregation: null,
-  };
+  const result: Record<(typeof expectedTags)[number], string | null> =
+    Object.create(null);
+
   for (const tag of expectedTags) {
+    result[tag] = null;
+
-    Object.create(null);
-
-  for (const tag of expectedTags) {
-    result[tag] = null;
+    Object.fromEntries(
+      expectedTags.map((tag) => [tag, null as string | null])
+    ) as Record<(typeof expectedTags)[number], string | null>;
+
+  for (const tag of expectedTags) {
-    Object.create(null);
-
-  for (const tag of expectedTags) {
-    result[tag] = null;
+    Object.fromEntries(
+      expectedTags.map((tag) => [tag, null as string | null])
+    ) as Record<(typeof expectedTags)[number], string | null>;
+
+  for (const tag of expectedTags) {
     const value = xmlDoc.querySelector(tag)?.textContent?.trim();
-    if (value) {
-      try {
-        const tagValue = parse(value);
-        if (
-          !tagValue ||
-          (typeof tagValue === 'object' && Object.keys(tagValue).length === 0)
-        ) {
-          result[tag] = null;
-        } else {
-          // No indentation
-          result[tag] = toJSString(tagValue, 0) ?? null;
-        }
-      } catch (e) {
-        logger.log.warn(
-          logger.mongoLogId(1_001_000_384),
-          'AtlasAiService',
-          `Failed to parse value for tag <${tag}>: ${value}`,
-          { error: e }
-        );
-        result[tag] = null;
+    if (!value) {
+      continue;
+    }
+
+    try {
+      const tagValue = parse(value);
+      if (
+        tagValue &&
+        !(typeof tagValue === 'object' && Object.keys(tagValue).length === 0)
+      ) {
+        // No indentation
+        result[tag] = toJSString(tagValue, 0) ?? null;
       }
+    } catch (e) {
+      logger.log.warn(
+        logger.mongoLogId(1_001_000_384),
+        'AtlasAiService',
+        `Failed to parse value for tag <${tag}>: ${value}`,
+        { error: e }
+      );
     }
   }
 

@@ -57,7 +57,9 @@ export const parsableFieldTypes = [
 ] as const;
 export type CSVParsableFieldType = (typeof parsableFieldTypes)[number];
 
-export const CSVFieldTypeLabels: Record<CSVParsableFieldType, string> = {
+export const CSVFieldTypeLabels: Readonly<
+  Record<CSVParsableFieldType, string>
+> = {
   int: 'Int32',
   long: 'Long',
   double: 'Double',

@@ -480,7 +480,7 @@ describe('placeValue', function () {
 });
 
 function parseHeader(header: string[]): Record<string, PathPart[]> {
-  const parsed: Record<string, PathPart[]> = {};
+  const parsed: Record<string, PathPart[]> = Object.create(null);
   for (const name of header) {
     parsed[name] = parseCSVHeaderName(name);
   }

@@ -72,7 +72,7 @@ export async function listCSVFields({
           // ie. the whole array counts as one field
           const flattened = headerFields.map(csvHeaderNameToFieldName);
 
-          const fieldMap: Record<string, true> = {};
+          const fieldMap: Record<string, true> = Object.create(null);
 
           // make sure that each array field is only included once
           for (const name of flattened) {

@@ -229,7 +229,7 @@ export const startImport = (): ImportThunkAction<Promise<void>> => {
 
     const ignoreBlanks = ignoreBlanks_ && fileType === FILE_TYPES.CSV;
     const fileSize = fileStats?.size || 0;
-    const fields: Record<string, CSVParsableFieldType> = {};
+    const fields: Record<string, CSVParsableFieldType> = Object.create(null);
     for (const [name, type] of transform) {
       if (exclude.includes(name)) {
         continue;
@@ -662,7 +662,7 @@ const loadCSVPreviewDocs = (): ImportThunkAction<Promise<void>> => {
     try {
       const result = await listCSVFields({ input, delimiter, newline });
 
-      const fieldMap: Record<string, number[]> = {};
+      const fieldMap: Record<string, number[]> = Object.create(null);
       const fields: FieldFromCSV[] = [];
 
       // group the array fields' cells together so that large arrays don't kill

@@ -1,7 +1,7 @@
 import debug from 'debug';
 const PREFIX = 'mongodb-compass-import-export';
 
-const _LOGGERS: Record<string, debug.Debugger> = {};
+const _LOGGERS: Record<string, debug.Debugger> = Object.create(null);
 
 export const createDebug = function (name: string) {
   if (!_LOGGERS[name]) {

@@ -257,8 +257,8 @@ describe('RegularIndexesTable Component', function () {
         expect(within(indexRow).getByTestId(indexCell)).to.exist;
       }
 
-      expect(() => within(indexRow).getByTestId('index-actions-hide-action')).to
-        .throw;
+      expect(within(indexRow).queryByTestId('index-actions-hide-action')).to.not
+        .exist;
       if (index.status === 'creating') {
         expect(() =>
           within(indexRow).getByTestId('index-actions-delete-action')
@@ -283,8 +283,8 @@ describe('RegularIndexesTable Component', function () {
         expect(within(indexRow).getByTestId(indexCell)).to.exist;
       }
 
-      expect(() => within(indexRow).getByTestId('index-actions-hide-action')).to
-        .throw;
+      expect(within(indexRow).queryByTestId('index-actions-hide-action')).to.not
+        .exist;
       expect(() =>
         within(indexRow).getByTestId('index-actions-delete-action')
       ).to.throw();

@@ -127,7 +127,7 @@ const statusBadgeVariants: Record<SearchIndexStatus, BadgeVariant> = {
   READY: BadgeVariant.Green,
   STALE: BadgeVariant.LightGray,
   DELETING: BadgeVariant.Red,
-};
+} as const;
 
 function IndexStatus({
   status,

@@ -369,7 +369,7 @@ export const createIndexFormSubmitted = (): IndexesThunkAction<
 
     const formIndexOptions = getState().createIndex.options;
 
-    let spec: Record<string, IndexDirection> = {};
+    let spec: Record<string, IndexDirection> = Object.create(null);
 
     try {
       // Gather from the index input fields
-Original file line number
+Diff line change
@@ Expand Up / @@ -821,7 +821,7 @@ export async function startBrowser( @@
             },
           },
         },
-      };
+      } as const;
       // webdriverio removed RemoteOptions. It is now
       // Capabilities.WebdriverIOConfig, but Capabilities is not exported
@@ Expand Down @@