diff --git a/tests/smoke/rename-wikilink-update.spec.ts b/tests/smoke/rename-wikilink-update.spec.ts
new file mode 100644
index 00000000..5179aff4
--- /dev/null
+++ b/tests/smoke/rename-wikilink-update.spec.ts
@@ -0,0 +1,44 @@
+import { test, expect } from '@playwright/test'
+
+test.describe('Renaming a note updates wikilinks across the vault', () => {
+  test.beforeEach(async ({ page }) => {
+    await page.setViewportSize({ width: 1600, height: 900 })
+    await page.goto('/')
+    await page.waitForLoadState('networkidle')
+  })
+
+  test('tab rename triggers rename flow and shows toast', async ({ page }) => {
+    // 1. Click the first note in the list to open it
+    const noteListContainer = page.locator('[data-testid="note-list-container"]')
+    await noteListContainer.waitFor({ timeout: 5000 })
+    const firstNote = noteListContainer.locator('.cursor-pointer').first()
+    await firstNote.click()
+    await page.waitForTimeout(500)
+
+    // 2. Capture the original tab title
+    const tabTitle = page.locator('.group span.truncate').first()
+    await expect(tabTitle).toBeVisible({ timeout: 5000 })
+    const originalTitle = await tabTitle.textContent()
+    expect(originalTitle).toBeTruthy()
+
+    // 3. Double-click the tab to enter rename mode
+    await tabTitle.dblclick()
+    await page.waitForTimeout(300)
+
+    // 4. Type a new name and press Enter
+    const editInput = page.locator('.group input')
+    await expect(editInput).toBeVisible({ timeout: 3000 })
+    const newTitle = `${originalTitle} Renamed`
+    await editInput.fill(newTitle)
+    await editInput.press('Enter')
+    await page.waitForTimeout(1000)
+
+    // 5. Verify the tab title updated (rename mock handler returns a new path)
+    const newTabTitle = page.locator('.group span.truncate').first()
+    await expect(newTabTitle).toHaveText(newTitle, { timeout: 5000 })
+
+    // 6. Verify the toast message appeared (confirms rename flow ran, not just in-memory update)
+    const toast = page.getByText('Renamed', { exact: true })
+    await expect(toast).toBeVisible({ timeout: 5000 })
+  })
+})