diff --git a/package-lock.json b/package-lock.json
index 96995462e0..9dd916e25c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -19810,7 +19810,7 @@
       "version": "0.6.1",
       "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
       "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==",
-      "devOptional": true,
+      "dev": true,
       "engines": {
         "node": ">=0.10.0"
       }
diff --git a/tests/suites/tenant/diagnostics/Diagnostics.ts b/tests/suites/tenant/diagnostics/Diagnostics.ts
index 9571d57056..8099d2fb98 100644
--- a/tests/suites/tenant/diagnostics/Diagnostics.ts
+++ b/tests/suites/tenant/diagnostics/Diagnostics.ts
@@ -13,6 +13,7 @@ const OWNER_CARD_VISIBILITY_TIMEOUT = VISIBILITY_TIMEOUT * 2;
 
 export enum DiagnosticsTab {
     Info = 'overview',
+    Database = 'database',
     Schema = 'schema',
     TopShards = 'topShards',
     Queries = 'topQueries',
@@ -23,7 +24,11 @@ export enum DiagnosticsTab {
     HotKeys = 'hotKeys',
     Describe = 'describe',
     Storage = 'storage',
+    Network = 'network',
+    Configs = 'configs',
+    Monitoring = 'monitoring',
     Operations = 'operations',
+    Backups = 'backups',
     Access = 'access',
 }
 
diff --git a/tests/suites/tenant/diagnostics/tabs/databasePageDescribeAbsence.test.ts b/tests/suites/tenant/diagnostics/tabs/databasePageDescribeAbsence.test.ts
new file mode 100644
index 0000000000..ae08a25102
--- /dev/null
+++ b/tests/suites/tenant/diagnostics/tabs/databasePageDescribeAbsence.test.ts
@@ -0,0 +1,77 @@
+import {expect, test} from '@playwright/test';
+
+import {database} from '../../../../utils/constants';
+import {TenantPage} from '../../TenantPage';
+import {VISIBILITY_TIMEOUT} from '../../constants';
+
+test.describe('Database page in v2 navigation - no /describe calls', () => {
+    test.beforeEach(async ({page}) => {
+        await page.addInitScript(() => {
+            localStorage.setItem('enableTenantNavigationV2', JSON.stringify(true));
+            // Dismiss the "Navigation is here now" alert popover so it doesn't block interactions
+            localStorage.setItem('isV2NavigationAlertSeen', JSON.stringify(true));
+        });
+    });
+
+    test('/describe is not called when navigating through Database page tabs', async ({page}) => {
+        const describeCalls: string[] = [];
+
+        page.on('request', (request) => {
+            if (request.url().includes('/viewer/json/describe')) {
+                describeCalls.push(request.url());
+            }
+        });
+
+        const tenantPage = new TenantPage(page);
+        await tenantPage.goto({
+            schema: database,
+            database,
+            databasePage: 'database',
+        });
+
+        await tenantPage.isDiagnosticsVisible();
+
+        // Find all tab links rendered on the Database page
+        const tabsContainer = page.locator('.ydb-database-diagnostics-tabs__tabs');
+        await tabsContainer.waitFor({state: 'visible', timeout: VISIBILITY_TIMEOUT});
+
+        const tabLinks = tabsContainer.locator('a[data-tab]');
+        const tabCount = await tabLinks.count();
+
+        // Ensure at least one tab is visible so the test is not vacuously true
+        expect(tabCount).toBeGreaterThan(0);
+
+        // Collect all tab hrefs before navigating.
+        // Assert every tab link has an href so no tab is silently skipped.
+        const tabHrefs: string[] = [];
+        for (let i = 0; i < tabCount; i++) {
+            const href = await tabLinks.nth(i).getAttribute('href');
+            expect(
+                href,
+                `Tab ${i} (a[data-tab]) has no href — it would be silently skipped`,
+            ).toBeTruthy();
+            if (href) {
+                tabHrefs.push(href);
+            }
+        }
+
+        // Navigate to each tab URL directly instead of clicking.
+        // Clicking tabs + waiting for networkidle is unreliable in a live backend
+        // (the app polls continuously, so networkidle never settles), which causes
+        // the test to consume its full timeout on every tab and eventually stall CI.
+        // Direct goto() waits for the page load event which is sufficient to capture
+        // any /describe requests triggered during component mount.
+        for (const href of tabHrefs) {
+            await page.goto(href);
+            await tenantPage.isDiagnosticsVisible();
+        }
+
+        // Give deferred effects on the last tab a moment to fire before asserting.
+        await page.waitForTimeout(500);
+
+        expect(
+            describeCalls,
+            `/describe should not be called on the Database page, but was called ${describeCalls.length} time(s): ${describeCalls.join(', ')}`,
+        ).toHaveLength(0);
+    });
+});