diff --git a/frontend/e2e/activity.spec.js b/frontend/e2e/activity.spec.js
index a1b1b01..8db7dbb 100644
--- a/frontend/e2e/activity.spec.js
+++ b/frontend/e2e/activity.spec.js
@@ -27,6 +27,38 @@ test.describe('Activity workflow', () => {
     await expect(activity.locator('[data-activity-action="clear"]')).toBeDisabled();
   });
 
+  test('clearing activity requires destructive confirmation for the current case', async ({ page }) => {
+    await page.evaluate(async () => {
+      await window.go.api.App.WritePluginSettings('verstak.activity', {
+        'events:workspace:Project': [{
+          activityId: 'activity-to-clear',
+          occurredAt: '2026-06-30T08:00:00.000Z',
+          type: 'note.saved',
+          title: 'Keep until confirmed',
+          workspaceRootPath: 'Project',
+        }],
+      });
+    });
+
+    await page.getByRole('tab', { name: 'Activity' }).click();
+    const activity = page.locator('.activity-root');
+    await expect(activity.locator('.activity-count')).toHaveText('1 event');
+
+    await activity.locator('[data-activity-action="clear"]').click();
+    const confirmation = activity.locator('[data-activity-clear-confirmation]');
+    await expect(confirmation).toBeVisible();
+    await expect(confirmation).toContainText(/Project|Дело/);
+    await expect(activity.locator('.activity-count')).toHaveText('1 event');
+
+    await confirmation.locator('[data-activity-clear-cancel]').click();
+    await expect(confirmation).toHaveCount(0);
+    await expect(activity.locator('.activity-count')).toHaveText('1 event');
+
+    await activity.locator('[data-activity-action="clear"]').click();
+    await activity.locator('[data-activity-clear-confirm]').click();
+    await expect(activity.locator('.activity-count')).toHaveText('0 events');
+  });
+
   test('workspace activity keeps raw events and renders factual work session candidates', async ({ page }) => {
     await page.evaluate(async () => {
       await window.go.api.App.WritePluginSettings('verstak.activity', {
@@ -75,7 +107,7 @@ test.describe('Activity workflow', () => {
     const candidate = candidateSection.locator('[data-work-session-candidate]');
     await expect(candidate).toHaveCount(1);
     await expect(candidate).toContainText('Workspace: Project');
-    await expect(candidate).toContainText('Estimated duration: 20 min');
+    await expect(candidate).toContainText('Estimated duration: 10 min');
     await expect(candidate).toContainText('Activities: 2');
     await expect(candidate).not.toContainText('Project work on');
     await expect(candidate.locator('[data-work-session-action="review"]')).toBeVisible();
@@ -111,10 +143,10 @@ test.describe('Activity workflow', () => {
     const journal = page.locator('.journal-root');
     await expect(journal).toBeVisible({ timeout: 10000 });
     await expect(journal.locator('[data-journal-candidate]')).toContainText('Workspace: Project');
-    await expect(journal.locator('[data-journal-candidate]')).toContainText('Estimated duration: 20 min');
+    await expect(journal.locator('[data-journal-candidate]')).toContainText('Estimated duration: 10 min');
     await expect(journal.locator('[data-journal-input="title"]')).toHaveValue('');
     await expect(journal.locator('[data-journal-input="summary"]')).toHaveValue('');
-    await expect(journal.locator('[data-journal-input="minutes"]')).toHaveValue('20');
+    await expect(journal.locator('[data-journal-input="minutes"]')).toHaveValue('10');
 
     const activityInputs = journal.locator('[data-journal-candidate-activity]');
     await expect(activityInputs).toHaveCount(2);
@@ -126,7 +158,7 @@ test.describe('Activity workflow', () => {
     await journal.locator('[data-journal-action="save-entry"]').click();
 
     await expect(journal).toContainText('Review research capture');
-    await expect(journal).toContainText('20 min');
+    await expect(journal).toContainText('10 min');
     const stored = await page.evaluate(async () => {
       const result = await window.go.api.App.ReadPluginSettings('verstak.journal');
       return Array.isArray(result) ? result[0]['worklog:workspace:Project'] : result['worklog:workspace:Project'];
diff --git a/frontend/src/lib/test/wails-mock.js b/frontend/src/lib/test/wails-mock.js
index c130f2f..4c35022 100644
--- a/frontend/src/lib/test/wails-mock.js
+++ b/frontend/src/lib/test/wails-mock.js
@@ -6,6 +6,7 @@
  */
 import defaultEditorSource from '../../../../../verstak-official-plugins/plugins/default-editor/frontend/src/index.js?raw';
 import secretsSource from '../../../../../verstak-official-plugins/plugins/secrets/frontend/src/index.js?raw';
+import activitySource from '../../../../../verstak-official-plugins/plugins/activity/frontend/src/index.js?raw';
 
 (function () {
   if (window.__wailsMockReady) return;
@@ -3536,8 +3537,8 @@ import secretsSource from '../../../../../verstak-official-plugins/plugins/secre
       if (pluginId === 'verstak.notes' && assetPath === 'frontend/dist/index.js') {
         return Promise.resolve(simplePluginBundle('verstak.notes', 'NotesView', 'notes-root', 'Notes'));
       }
-      if (pluginId === 'verstak.activity' && assetPath === 'frontend/dist/index.js') {
-        return Promise.resolve(activityBundle());
+      if (pluginId === 'verstak.activity') {
+        return Promise.resolve(activitySource);
       }
       if (pluginId === 'verstak.journal' && assetPath === 'frontend/dist/index.js') {
         return Promise.resolve(journalBundle());