Add harness infrastructure for web-shell package

.github/workflows/ci.yml

@@ -365,6 +365,56 @@ jobs:
           name: 'coverage-reports-22.x-ubuntu-latest'
           path: 'packages/*/coverage'
 
+  web_shell_e2e_smoke:
+    name: 'web-shell E2E Smoke (ubuntu-latest, Node 22.x)'
+    needs: 'classify_pr'
+    if: "${{ !cancelled() && github.event_name == 'pull_request' && needs.classify_pr.outputs.skip_ci != 'true' }}"
+    runs-on: 'ubuntu-latest'
+    timeout-minutes: 20
+    permissions:
+      contents: 'read'
+    steps:
+      - name: 'Checkout'
+        uses: 'actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd' # v6.0.2
+        with:
+          ref: "${{ format('refs/pull/{0}/head', github.event.pull_request.number) }}"
+          fetch-depth: 1
+
+      - name: 'Set up Node.js 22.x'
+        uses: 'actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e' # v6.4.0
+        with:
+          node-version: '22.x'
+          cache: 'npm'
+          cache-dependency-path: 'package-lock.json'
+          registry-url: 'https://registry.npmjs.org/'
+
+      - name: 'Configure npm for rate limiting'
+        run: |-
+          npm config set fetch-retry-mintimeout 20000
+          npm config set fetch-retry-maxtimeout 120000
+          npm config set fetch-retries 5
+          npm config set fetch-timeout 300000
+
+      - name: 'Install dependencies'
+        run: |-
+          npm ci --prefer-offline --no-audit --progress=false
+
+      - name: 'Install Playwright Chromium'
+        run: 'npx playwright install --with-deps chromium'
+
+      - name: 'Run web-shell browser smoke'
+        run: 'npm run test:e2e:smoke --workspace=packages/web-shell'
+
+      - name: 'Upload web-shell Playwright artifacts'
+        if: '${{ always() }}'
+        uses: 'actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a' # v7.0.1
+        with:
+          name: 'web-shell-e2e-smoke'
+          path: |-
+            packages/web-shell/client/e2e/test-results
+            packages/web-shell/client/e2e/playwright-report
+          if-no-files-found: 'ignore'
+
   # macOS/Windows: slowest/costliest runners, rare platform regressions — run
   # only in the merge queue. Skipped on PR (ubuntu is the fast PR signal) and on
   # push (the queue already tested the merged tree, so a post-merge re-run is

.github/workflows/e2e.yml

@@ -144,3 +144,47 @@ jobs:
           OPENAI_BASE_URL: '${{ secrets.OPENAI_BASE_URL }}'
           OPENAI_MODEL: '${{ secrets.OPENAI_MODEL }}'
         run: 'npm run test:e2e'
+
+  web-shell-browser-regression:
+    name: 'web-shell Browser Regression'
+    runs-on: 'ubuntu-latest'
+    if: |-
+      ${{ github.event_name == 'schedule' || github.event_name == 'workflow_dispatch' }}
+    steps:
+      - name: 'Checkout'
+        uses: 'actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd' # v6.0.2
+
+      - name: 'Set up Node.js'
+        uses: 'actions/setup-node@48b55a011bda9f5d6aeb4c2d9c7362e8dae4041e' # v6.4.0
+        with:
+          node-version-file: '.nvmrc'
+          cache: 'npm'
+          cache-dependency-path: 'package-lock.json'
+          registry-url: 'https://registry.npmjs.org/'
+
+      - name: 'Configure npm for rate limiting'
+        run: |-
+          npm config set fetch-retry-mintimeout 20000
+          npm config set fetch-retry-maxtimeout 120000
+          npm config set fetch-retries 5
+          npm config set fetch-timeout 300000
+
+      - name: 'Install dependencies'
+        run: |-
+          npm ci --prefer-offline --no-audit --progress=false
+
+      - name: 'Install Playwright Chromium'
+        run: 'npx playwright install --with-deps chromium'
+
+      - name: 'Run web-shell browser regression'
+        run: 'npm run test:e2e --workspace=packages/web-shell'
+
+      - name: 'Upload web-shell Playwright artifacts'
+        if: '${{ always() }}'
+        uses: 'actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a' # v7.0.1
+        with:
+          name: 'web-shell-browser-regression'
+          path: |-
+            packages/web-shell/client/e2e/test-results
+            packages/web-shell/client/e2e/playwright-report
+          if-no-files-found: 'ignore'

.gitignore

@@ -76,6 +76,8 @@ bundle
 # Test report files
 junit.xml
 packages/*/coverage/
+packages/web-shell/client/e2e/playwright-report/
+packages/web-shell/client/e2e/test-results/
 
 # PR body draft
 pr_body.md

eslint.config.js

@@ -170,6 +170,82 @@ export default tseslint.config(
       'default-case': 'error',
     },
   },
+  {
+    files: [
+      'packages/web-shell/client/**/*.{ts,tsx}',
+      'packages/web-shell/*.config.ts',
+    ],
+    plugins: {
+      import: importPlugin,
+    },
+    settings: {
+      'import/resolver': {
+        node: true,
+      },
+    },
+    languageOptions: {
+      globals: {
+        ...globals.browser,
+        ...globals.es2021,
+        ...globals.node,
+      },
+    },
+    rules: {
+      'react/prop-types': 'off',
+      '@typescript-eslint/consistent-type-imports': [
+        'error',
+        { disallowTypeAnnotations: false },
+      ],
+      '@typescript-eslint/no-explicit-any': 'error',
+      '@typescript-eslint/no-unused-vars': [
+        'error',
+        {
+          argsIgnorePattern: '^_',
+          varsIgnorePattern: '^_',
+          caughtErrorsIgnorePattern: '^_',
+        },
+      ],
+      'no-console': ['error', { allow: ['warn', 'error'] }],
+      'no-debugger': 'error',
+      'object-shorthand': 'error',
+      'prefer-const': ['error', { destructuring: 'all' }],
+    },
+  },
+  {
+    files: [
+      'packages/web-shell/client/**/*.test.{ts,tsx}',
+      'packages/web-shell/client/test/**/*.{ts,tsx}',
+    ],
+    plugins: {
+      vitest,
+    },
+    languageOptions: {
+      globals: {
+        ...globals.browser,
+        ...globals.es2021,
+        ...globals.vitest,
+      },
+    },
+    rules: {
+      ...vitest.configs.recommended.rules,
+      'vitest/expect-expect': 'off',
+      'vitest/no-commented-out-tests': 'off',
+      'no-console': 'off',
+    },
+  },
+  {
+    files: ['packages/web-shell/client/e2e/**/*.{ts,tsx}'],
+    languageOptions: {
+      globals: {
+        ...globals.browser,
+        ...globals.es2021,
+        ...globals.node,
+      },
+    },
+    rules: {
+      'no-console': 'off',
+    },
+  },
   {
     // Enforce kebab-case filenames
     files: ['packages/core/src/**/*.ts', 'packages/cli/src/**/*.ts'],

packages/web-shell/client/App.tsx

@@ -595,12 +595,6 @@ function isAlreadyDispatched(error: unknown): error is AlreadyDispatchedError {
   );
 }
 
-function logSessionNoticesHook(notices: readonly DaemonSessionNotice[]): void {
-  if (notices.length > 0) {
-    console.info('[web-shell] useSessionNotices()', { notices });
-  }
-}
-
 function shouldToastNotice(notice: DaemonSessionNotice): boolean {
   return (
     notice.category === 'validation' ||
@@ -1704,11 +1698,9 @@ export function App({
     (error: unknown, fallback: string) => {
       if (isAbortError(error)) return;
       if (isDaemonTurnError(error)) {
-        console.debug('[web-shell] turn error rendered in transcript', error);
         return;
       }
       if (isAlreadyDispatched(error)) {
-        console.debug('[web-shell] error already handled by notice', error);
         return;
       }
       const message = formatError(error, fallback);
@@ -1800,13 +1792,10 @@ export function App({
   );
 
   useEffect(() => {
-    logSessionNoticesHook(notices);
     for (const notice of notices) {
       if (shouldToastNotice(notice)) {
         pushToast(toastToneFromNotice(notice), notice.message);
-      } else if (notice.category === 'lifecycle') {
-        console.debug('[web-shell] daemon notice', notice);
-      } else {
+      } else if (notice.category !== 'lifecycle') {
         console.warn('[web-shell] daemon notice', notice);
       }
       dismissNotice(notice.id);

packages/web-shell/client/components/ChatEditor.tsx

@@ -704,7 +704,12 @@ function SlashCommandPanel({
   } as CSSProperties;
 
   return createPortal(
-    <div ref={panelRef} className={styles.slashPortalLayer} style={themeVars}>
+    <div
+      ref={panelRef}
+      className={styles.slashPortalLayer}
+      style={themeVars}
+      data-web-shell-slash-menu
+    >
       <div
         className={styles.slashPanel}
         style={positionedPanelStyle}
@@ -1299,10 +1304,11 @@ export const ChatEditor = memo(
     const showCancelButton = isRunning && !core.hasContent;
 
     return (
-      <div className={styles.editorShell} data-composer>
+      <div className={styles.editorShell} data-composer data-web-shell-composer>
         <div
           ref={containerRef}
           className={styles.container}
+          data-web-shell-composer-surface
           data-dac-glow
           onClick={() => {
             setModeDropdownOpen(false);
@@ -1457,7 +1463,7 @@ export const ChatEditor = memo(
                   !
                 </span>
               )}
-              <div ref={core.containerRef} />
+              <div ref={core.containerRef} data-web-shell-composer-editor />
             </div>
             <div className={styles.toolbar}>
               <div className={styles.toolbarLeading}>
@@ -1486,6 +1492,7 @@ export const ChatEditor = memo(
                       <button
                         ref={modeBtnRef}
                         className={styles.toolBtn}
+                        data-web-shell-mode-button
                         onClick={(e) => {
                           e.stopPropagation();
                           core.closeSlashMenu();
@@ -1521,6 +1528,7 @@ export const ChatEditor = memo(
                       <button
                         ref={modelBtnRef}
                         className={styles.toolBtn}
+                        data-web-shell-model-button
                         onClick={(e) => {
                           e.stopPropagation();
                           core.closeSlashMenu();
@@ -1646,6 +1654,7 @@ export const ChatEditor = memo(
                         ? !onCancel
                         : core.disabled || !core.hasContent
                   }
+                  data-web-shell-composer-submit
                   onClick={(e) => {
                     e.stopPropagation();
                     if (isPreparing) {

packages/web-shell/client/components/MessageList.dom.test.tsx

@@ -135,6 +135,7 @@ const userShellMsg = (
   id,
   role: 'user_shell',
   command: 'npm test',
+  output: '',
 });
 const toolMsg = (id: string): ToolGroupMessage => ({
   id,

packages/web-shell/client/components/MessageList.test.ts

@@ -115,7 +115,9 @@ function makeBackgroundAgentToolGroup(id: string): Message {
   };
 }
 
-function makeMultiToolGroup(id: string): Message {
+function makeMultiToolGroup(
+  id: string,
+): Extract<Message, { role: 'tool_group' }> {
   return {
     id,
     role: 'tool_group',
@@ -126,15 +128,19 @@ function makeMultiToolGroup(id: string): Message {
   };
 }
 
-function makeUserMessage(id: string): Message {
+function makeUserMessage(id: string): Extract<Message, { role: 'user' }> {
   return { id, role: 'user', content: 'hello' };
 }
 
-function makeUserShellMessage(id: string): Message {
-  return { id, role: 'user_shell', command: 'npm test' };
+function makeUserShellMessage(
+  id: string,
+): Extract<Message, { role: 'user_shell' }> {
+  return { id, role: 'user_shell', command: 'npm test', output: '' };
 }
 
-function makeAssistantMessage(id: string): Message {
+function makeAssistantMessage(
+  id: string,
+): Extract<Message, { role: 'assistant' }> {
   return { id, role: 'assistant', content: 'response' };
 }
 
@@ -310,7 +316,9 @@ describe('groupParallelAgents', () => {
 });
 
 describe('getTurnTimelineNode', () => {
-  const item = (message: Message): DisplayItem => ({
+  const item = (
+    message: Message,
+  ): Extract<DisplayItem, { type: 'message' }> => ({
     type: 'message',
     key: message.id,
     message,