diff --git a/packages/trace-viewer/src/ui/actionList.tsx b/packages/trace-viewer/src/ui/actionList.tsx
index e5866ba310..b205ec4205 100644
--- a/packages/trace-viewer/src/ui/actionList.tsx
+++ b/packages/trace-viewer/src/ui/actionList.tsx
@@ -25,13 +25,13 @@ import type { TreeState } from '@web/components/treeView';
 import { TreeView } from '@web/components/treeView';
 import type { ActionTraceEventInContext, ActionTreeItem } from './modelUtil';
 import type { Boundaries } from '../geometry';
+import { WorkbenchContext } from './workbenchContext';
 
 export interface ActionListProps {
   actions: ActionTraceEventInContext[],
   selectedAction: ActionTraceEventInContext | undefined,
   selectedTime: Boundaries | undefined,
   setSelectedTime: (time: Boundaries | undefined) => void,
-  sdkLanguage: Language | undefined;
   onSelected: (action: ActionTraceEventInContext) => void,
   onHighlighted: (action: ActionTraceEventInContext | undefined) => void,
   revealConsole: () => void,
@@ -45,12 +45,12 @@ export const ActionList: React.FC<ActionListProps> = ({
   selectedAction,
   selectedTime,
   setSelectedTime,
-  sdkLanguage,
   onSelected,
   onHighlighted,
   revealConsole,
   isLive,
 }) => {
+  const { sdkLanguage } = React.useContext(WorkbenchContext);
   const [treeState, setTreeState] = React.useState<TreeState>({ expandedItems: new Map() });
   const { rootItem, itemMap } = React.useMemo(() => modelUtil.buildActionTree(actions), [actions]);
 
diff --git a/packages/trace-viewer/src/ui/callTab.tsx b/packages/trace-viewer/src/ui/callTab.tsx
index b7cd7a8581..dc54670940 100644
--- a/packages/trace-viewer/src/ui/callTab.tsx
+++ b/packages/trace-viewer/src/ui/callTab.tsx
@@ -24,11 +24,12 @@ import { asLocator } from '@isomorphic/locatorGenerators';
 import type { Language } from '@isomorphic/locatorGenerators';
 import { PlaceholderPanel } from './placeholderPanel';
 import type { ActionTraceEventInContext } from './modelUtil';
+import { WorkbenchContext } from './workbenchContext';
 
 export const CallTab: React.FunctionComponent<{
   action: ActionTraceEventInContext | undefined,
-  sdkLanguage: Language | undefined,
-}> = ({ action, sdkLanguage }) => {
+}> = ({ action }) => {
+  const { sdkLanguage } = React.useContext(WorkbenchContext);
   if (!action)
     return <PlaceholderPanel text='No action selected' />;
   const params = { ...action.params };
diff --git a/packages/trace-viewer/src/ui/errorsTab.tsx b/packages/trace-viewer/src/ui/errorsTab.tsx
index 71b6059c29..1bb2c0e605 100644
--- a/packages/trace-viewer/src/ui/errorsTab.tsx
+++ b/packages/trace-viewer/src/ui/errorsTab.tsx
@@ -19,8 +19,8 @@ import * as React from 'react';
 import type * as modelUtil from './modelUtil';
 import { PlaceholderPanel } from './placeholderPanel';
 import { renderAction } from './actionList';
-import type { Language } from '@isomorphic/locatorGenerators';
 import type { StackFrame } from '@protocol/channels';
+import { WorkbenchContext } from './workbenchContext';
 
 type ErrorDescription = {
   action?: modelUtil.ActionTraceEventInContext;
@@ -44,9 +44,9 @@ export function useErrorsTabModel(model: modelUtil.MultiTraceModel | undefined):
 
 export const ErrorsTab: React.FunctionComponent<{
   errorsModel: ErrorsTabModel,
-  sdkLanguage: Language,
   revealInSource: (error: ErrorDescription) => void,
-}> = ({ errorsModel, sdkLanguage, revealInSource }) => {
+}> = ({ errorsModel, revealInSource }) => {
+  const { sdkLanguage } = React.useContext(WorkbenchContext);
   if (!errorsModel.errors.size)
     return <PlaceholderPanel text='No errors' />;
 
diff --git a/packages/trace-viewer/src/ui/inspectorTab.tsx b/packages/trace-viewer/src/ui/inspectorTab.tsx
index 7b3a90b709..8110c168c5 100644
--- a/packages/trace-viewer/src/ui/inspectorTab.tsx
+++ b/packages/trace-viewer/src/ui/inspectorTab.tsx
@@ -15,18 +15,18 @@
  */
 
 import { CodeMirrorWrapper } from '@web/components/codeMirrorWrapper';
-import type { Language } from '@web/components/codeMirrorWrapper';
 import { ToolbarButton } from '@web/components/toolbarButton';
 import { copy } from '@web/uiUtils';
 import * as React from 'react';
 import './sourceTab.css';
+import { WorkbenchContext } from './workbenchContext';
 
 export const InspectorTab: React.FunctionComponent<{
-  sdkLanguage: Language,
   setIsInspecting: (isInspecting: boolean) => void,
   highlightedLocator: string,
   setHighlightedLocator: (locator: string) => void,
-}> = ({ sdkLanguage, setIsInspecting, highlightedLocator, setHighlightedLocator }) => {
+}> = ({ setIsInspecting, highlightedLocator, setHighlightedLocator }) => {
+  const { sdkLanguage } = React.useContext(WorkbenchContext);
   return <div className='vbox' style={{ backgroundColor: 'var(--vscode-sideBar-background)' }}>
     <div style={{ margin: '10px 0px 10px 10px', color: 'var(--vscode-editorCodeLens-foreground)', flex: 'none' }}>Locator</div>
     <div style={{ margin: '0 10px 10px', flex: 'auto' }}>
diff --git a/packages/trace-viewer/src/ui/snapshotTab.tsx b/packages/trace-viewer/src/ui/snapshotTab.tsx
index 4bc2abc9eb..77484414a9 100644
--- a/packages/trace-viewer/src/ui/snapshotTab.tsx
+++ b/packages/trace-viewer/src/ui/snapshotTab.tsx
@@ -29,17 +29,18 @@ import type { Language } from '@isomorphic/locatorGenerators';
 import { locatorOrSelectorAsSelector } from '@isomorphic/locatorParser';
 import { TabbedPaneTab } from '@web/components/tabbedPane';
 import { BrowserFrame } from './browserFrame';
+import { WorkbenchContext } from './workbenchContext';
 
 export const SnapshotTab: React.FunctionComponent<{
   action: ActionTraceEvent | undefined,
-  sdkLanguage: Language,
   testIdAttributeName: string,
   isInspecting: boolean,
   setIsInspecting: (isInspecting: boolean) => void,
   highlightedLocator: string,
   setHighlightedLocator: (locator: string) => void,
   openPage?: (url: string, target?: string) => Window | any,
-}> = ({ action, sdkLanguage, testIdAttributeName, isInspecting, setIsInspecting, highlightedLocator, setHighlightedLocator, openPage }) => {
+}> = ({ action, testIdAttributeName, isInspecting, setIsInspecting, highlightedLocator, setHighlightedLocator, openPage }) => {
+  const { sdkLanguage } = React.useContext(WorkbenchContext);
   const [measure, ref] = useMeasure<HTMLDivElement>();
   const [snapshotTab, setSnapshotTab] = React.useState<'action'|'before'|'after'>('action');
 
@@ -166,7 +167,6 @@ export const SnapshotTab: React.FunctionComponent<{
   >
     <InspectModeController
       isInspecting={isInspecting}
-      sdkLanguage={sdkLanguage}
       testIdAttributeName={testIdAttributeName}
       highlightedLocator={highlightedLocator}
       setHighlightedLocator={setHighlightedLocator}
@@ -174,7 +174,6 @@ export const SnapshotTab: React.FunctionComponent<{
       iteration={loadingRef.current.iteration} />
     <InspectModeController
       isInspecting={isInspecting}
-      sdkLanguage={sdkLanguage}
       testIdAttributeName={testIdAttributeName}
       highlightedLocator={highlightedLocator}
       setHighlightedLocator={setHighlightedLocator}
@@ -229,12 +228,12 @@ function renderTitle(snapshotTitle: string): string {
 export const InspectModeController: React.FunctionComponent<{
   iframe: HTMLIFrameElement | null,
   isInspecting: boolean,
-  sdkLanguage: Language,
   testIdAttributeName: string,
   highlightedLocator: string,
   setHighlightedLocator: (locator: string) => void,
   iteration: number,
-}> = ({ iframe, isInspecting, sdkLanguage, testIdAttributeName, highlightedLocator, setHighlightedLocator, iteration }) => {
+}> = ({ iframe, isInspecting, testIdAttributeName, highlightedLocator, setHighlightedLocator, iteration }) => {
+  const { sdkLanguage } = React.useContext(WorkbenchContext);
   React.useEffect(() => {
     const recorders: { recorder: Recorder, frameSelector: string }[] = [];
     const isUnderTest = new URLSearchParams(window.location.search).get('isUnderTest') === 'true';
diff --git a/packages/trace-viewer/src/ui/timeline.tsx b/packages/trace-viewer/src/ui/timeline.tsx
index 67f4e3b071..e3d59e4cd7 100644
--- a/packages/trace-viewer/src/ui/timeline.tsx
+++ b/packages/trace-viewer/src/ui/timeline.tsx
@@ -22,8 +22,8 @@ import { FilmStrip } from './filmStrip';
 import type { FilmStripPreviewPoint } from './filmStrip';
 import type { ActionTraceEventInContext, MultiTraceModel } from './modelUtil';
 import './timeline.css';
-import type { Language } from '@isomorphic/locatorGenerators';
 import type { Entry } from '@trace/har';
+import { WorkbenchContext } from './workbenchContext';
 
 type TimelineBar = {
   action?: ActionTraceEventInContext;
@@ -44,8 +44,8 @@ export const Timeline: React.FunctionComponent<{
   onSelected: (action: ActionTraceEventInContext) => void,
   selectedTime: Boundaries | undefined,
   setSelectedTime: (time: Boundaries | undefined) => void,
-  sdkLanguage: Language,
-}> = ({ model, boundaries, onSelected, highlightedAction, highlightedEntry, selectedTime, setSelectedTime, sdkLanguage }) => {
+}> = ({ model, boundaries, onSelected, highlightedAction, highlightedEntry, selectedTime, setSelectedTime }) => {
+  const { sdkLanguage } = React.useContext(WorkbenchContext);
   const [measure, ref] = useMeasure<HTMLDivElement>();
   const [dragWindow, setDragWindow] = React.useState<{ startX: number, endX: number, pivot?: number, type: 'resize' | 'move' } | undefined>();
   const [previewPoint, setPreviewPoint] = React.useState<FilmStripPreviewPoint | undefined>();
diff --git a/packages/trace-viewer/src/ui/workbench.tsx b/packages/trace-viewer/src/ui/workbench.tsx
index afc003c674..e46ca5eda0 100644
--- a/packages/trace-viewer/src/ui/workbench.tsx
+++ b/packages/trace-viewer/src/ui/workbench.tsx
@@ -120,13 +120,10 @@ export const Workbench: React.FunctionComponent<{
     return model?.actions.map(a => a.attachments || []).flat() || [];
   }, [model]);
 
-  const sdkLanguage = model?.sdkLanguage || 'javascript';
-
   const inspectorTab: TabbedPaneTabModel = {
     id: 'inspector',
     title: 'Locator',
     render: () => <InspectorTab
-      sdkLanguage={sdkLanguage}
       setIsInspecting={setIsInspecting}
       highlightedLocator={highlightedLocator}
       setHighlightedLocator={setHighlightedLocator} />,
@@ -134,7 +131,7 @@ export const Workbench: React.FunctionComponent<{
   const callTab: TabbedPaneTabModel = {
     id: 'call',
     title: 'Call',
-    render: () => <CallTab action={activeAction} sdkLanguage={sdkLanguage} />
+    render: () => <CallTab action={activeAction} />
   };
   const logTab: TabbedPaneTabModel = {
     id: 'log',
@@ -145,7 +142,7 @@ export const Workbench: React.FunctionComponent<{
     id: 'errors',
     title: 'Errors',
     errorCount: errorsModel.errors.size,
-    render: () => <ErrorsTab errorsModel={errorsModel} sdkLanguage={sdkLanguage} revealInSource={error => {
+    render: () => <ErrorsTab errorsModel={errorsModel} revealInSource={error => {
       if (error.action)
         setSelectedAction(error.action);
       else
@@ -222,7 +219,6 @@ export const Workbench: React.FunctionComponent<{
       highlightedAction={highlightedAction}
       highlightedEntry={highlightedEntry}
       onSelected={onActionSelected}
-      sdkLanguage={sdkLanguage}
       selectedTime={selectedTime}
       setSelectedTime={setSelectedTime}
     />
@@ -230,7 +226,6 @@ export const Workbench: React.FunctionComponent<{
       <SplitView sidebarSize={250} orientation='horizontal' sidebarIsFirst={true} settingName='actionListSidebar'>
         <SnapshotTab
           action={activeAction}
-          sdkLanguage={sdkLanguage}
           testIdAttributeName={model?.testIdAttributeName || 'data-testid'}
           isInspecting={isInspecting}
           setIsInspecting={setIsInspecting}
@@ -250,7 +245,6 @@ export const Workbench: React.FunctionComponent<{
                   <div className='workbench-run-duration'>{time ? msToString(time) : ''}</div>
                 </div>}
                 <ActionList
-                  sdkLanguage={sdkLanguage}
                   actions={model?.actions || []}
                   selectedAction={model ? selectedAction : undefined}
                   selectedTime={selectedTime}
diff --git a/packages/trace-viewer/src/ui/workbenchContext.tsx b/packages/trace-viewer/src/ui/workbenchContext.tsx
new file mode 100644
index 0000000000..6e55cdad80
--- /dev/null
+++ b/packages/trace-viewer/src/ui/workbenchContext.tsx
@@ -0,0 +1,23 @@
+/**
+ * Copyright (c) Microsoft Corporation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import type { Language } from '@isomorphic/locatorGenerators';
+import { createContext } from 'react';
+
+type Context = {
+  sdkLanguage: Language,
+};
+
+export const WorkbenchContext = createContext<Context>(null as any);
diff --git a/packages/trace-viewer/src/ui/workbenchLoader.tsx b/packages/trace-viewer/src/ui/workbenchLoader.tsx
index 0260df0d7a..2c04da9539 100644
--- a/packages/trace-viewer/src/ui/workbenchLoader.tsx
+++ b/packages/trace-viewer/src/ui/workbenchLoader.tsx
@@ -22,6 +22,7 @@ import './workbenchLoader.css';
 import { toggleTheme } from '@web/theme';
 import { Workbench } from './workbench';
 import { TestServerConnection } from '@testIsomorphic/testServerConnection';
+import { WorkbenchContext } from './workbenchContext';
 
 export const WorkbenchLoader: React.FunctionComponent<{
 }> = () => {
@@ -165,7 +166,9 @@ export const WorkbenchLoader: React.FunctionComponent<{
     <div className='progress'>
       <div className='inner-progress' style={{ width: progress.total ? (100 * progress.done / progress.total) + '%' : 0 }}></div>
     </div>
-    <Workbench model={model} inert={showFileUploadDropArea} />
+    <WorkbenchContext.Provider value={{ sdkLanguage: model?.sdkLanguage || 'javascript' }}>
+      <Workbench model={model} inert={showFileUploadDropArea} />
+    </WorkbenchContext.Provider>
     {fileForLocalModeError && <div className='drop-target'>
       <div>Trace Viewer uses Service Workers to show traces. To view trace:</div>
       <div style={{ paddingTop: 20 }}>