diff --git a/x-pack/plugins/ml/public/application/services/forecast_service_provider.ts b/x-pack/plugins/ml/public/application/services/forecast_service_provider.ts
index f7cc7382e7cca1..c776a79a6f4751 100644
--- a/x-pack/plugins/ml/public/application/services/forecast_service_provider.ts
+++ b/x-pack/plugins/ml/public/application/services/forecast_service_provider.ts
@@ -19,6 +19,9 @@ export interface AggType {
   min: string;
 }
 
+// TODO Consolidate with legacy code in
+// `x-pack/plugins/ml/public/application/services/forecast_service.js` and
+// `x-pack/plugins/ml/public/application/services/forecast_service.d.ts`.
 export function forecastServiceProvider(mlApiServices: MlApiServices) {
   return {
     // Gets a basic summary of the most recently run forecasts for the specified
diff --git a/x-pack/plugins/ml/public/application/timeseriesexplorer/timeseriesexplorer_utils/time_series_search_service.ts b/x-pack/plugins/ml/public/application/timeseriesexplorer/timeseriesexplorer_utils/time_series_search_service.ts
index bd17989ce8eb8b..ef090083e0b90b 100644
--- a/x-pack/plugins/ml/public/application/timeseriesexplorer/timeseriesexplorer_utils/time_series_search_service.ts
+++ b/x-pack/plugins/ml/public/application/timeseriesexplorer/timeseriesexplorer_utils/time_series_search_service.ts
@@ -19,8 +19,8 @@ import {
   isModelPlotEnabled,
 } from '../../../../common/util/job_utils';
 
-// Note: This is a duplicated of `timeseries_search_service.ts` updated to move away from dependency cache.
-// The original file will be removed once all references are replaced with references to this file.
+// TODO Consolidate with legacy code in
+// `x-pack/plugins/ml/public/application/timeseriesexplorer/timeseries_search_service.ts`
 export function timeSeriesSearchServiceFactory(
   mlResultsService: MlResultsService,
   mlApiServices: MlApiServices
diff --git a/x-pack/plugins/ml/public/application/util/index_service.ts b/x-pack/plugins/ml/public/application/util/index_service.ts
index 85906a351cf73d..f4b6a1fc13d774 100644
--- a/x-pack/plugins/ml/public/application/util/index_service.ts
+++ b/x-pack/plugins/ml/public/application/util/index_service.ts
@@ -8,6 +8,7 @@
 import type { DataView, DataViewsContract } from '@kbn/data-views-plugin/public';
 import type { Job } from '../../../common/types/anomaly_detection_jobs';
 
+// TODO Consolidate with legacy code in `ml/public/application/util/index_utils.ts`.
 export function indexServiceFactory(dataViewsService: DataViewsContract) {
   return {
     /**
diff --git a/x-pack/plugins/ml/public/application/util/time_buckets_service.ts b/x-pack/plugins/ml/public/application/util/time_buckets_service.ts
index bccce147854bd7..480f279a603b10 100644
--- a/x-pack/plugins/ml/public/application/util/time_buckets_service.ts
+++ b/x-pack/plugins/ml/public/application/util/time_buckets_service.ts
@@ -12,6 +12,7 @@ import moment from 'moment';
 import { type TimeRangeBounds, type TimeBucketsInterval, TimeBuckets } from './time_buckets';
 import { useMlKibana } from '../contexts/kibana';
 
+// TODO Consolidate with legacy code in `ml/public/application/util/time_buckets.js`.
 export function timeBucketsServiceFactory(uiSettings: IUiSettingsClient) {
   function getTimeBuckets(): InstanceType<typeof TimeBuckets> {
     return new TimeBuckets({
diff --git a/x-pack/plugins/ml/public/application/util/time_series_explorer_service.ts b/x-pack/plugins/ml/public/application/util/time_series_explorer_service.ts
index 0f3872b42baa8e..4af8d98093cbdd 100644
--- a/x-pack/plugins/ml/public/application/util/time_series_explorer_service.ts
+++ b/x-pack/plugins/ml/public/application/util/time_series_explorer_service.ts
@@ -40,6 +40,8 @@ import { forecastServiceProvider } from '../services/forecast_service_provider';
 import { timeSeriesSearchServiceFactory } from '../timeseriesexplorer/timeseriesexplorer_utils/time_series_search_service';
 import { useMlKibana } from '../contexts/kibana';
 
+// TODO Consolidate with legacy code in
+// `ml/public/application/timeseriesexplorer/timeseriesexplorer_utils/timeseriesexplorer_utils.js`.
 export function timeSeriesExplorerServiceFactory(
   uiSettings: IUiSettingsClient,
   mlApiServices: MlApiServices,