diff --git a/app/src/components/intelligence/VaultPanel.test.tsx b/app/src/components/intelligence/VaultPanel.test.tsx
index e4c72f5fb..e44fc4c97 100644
--- a/app/src/components/intelligence/VaultPanel.test.tsx
+++ b/app/src/components/intelligence/VaultPanel.test.tsx
@@ -14,6 +14,9 @@ const mockSync = vi.fn();
 const mockSyncStatus = vi.fn();
 const mockRemove = vi.fn();
 
+const mockOpenUrl = vi.fn();
+const mockRevealPath = vi.fn();
+
 vi.mock('../../utils/tauriCommands/vault', () => ({
   openhumanVaultList: (...args: unknown[]) => mockList(...args),
   openhumanVaultCreate: (...args: unknown[]) => mockCreate(...args),
@@ -22,6 +25,11 @@ vi.mock('../../utils/tauriCommands/vault', () => ({
   openhumanVaultRemove: (...args: unknown[]) => mockRemove(...args),
 }));
 
+vi.mock('../../utils/openUrl', () => ({
+  openUrl: (...args: unknown[]) => mockOpenUrl(...args),
+  revealPath: (...args: unknown[]) => mockRevealPath(...args),
+}));
+
 function vault(overrides: Record<string, unknown> = {}) {
   return {
     id: 'v-1',
@@ -67,6 +75,8 @@ describe('<VaultPanel />', () => {
     mockSync.mockReset();
     mockSyncStatus.mockReset();
     mockRemove.mockReset();
+    mockOpenUrl.mockReset();
+    mockRevealPath.mockReset();
   });
 
   afterEach(() => {
@@ -403,4 +413,57 @@ describe('<VaultPanel />', () => {
     );
     confirmSpy.mockRestore();
   });
+
+  it('open vault fires obsidian deep link and shows success toast', async () => {
+    mockList.mockResolvedValueOnce({ result: [vault()], logs: [] });
+    mockOpenUrl.mockResolvedValueOnce(undefined);
+    const onToast = vi.fn();
+    render(<VaultPanel onToast={onToast} />);
+    await waitFor(() => screen.getByTestId('vault-list'));
+
+    fireEvent.click(screen.getByTestId('vault-open'));
+    await waitFor(() =>
+      expect(mockOpenUrl).toHaveBeenCalledWith(
+        'obsidian://open?path=' + encodeURIComponent('/Users/me/notes')
+      )
+    );
+    expect(onToast).toHaveBeenCalledWith(
+      expect.objectContaining({ type: 'info', title: 'Opened in Obsidian' })
+    );
+  });
+
+  it('open vault falls back to revealPath when obsidian deep link fails', async () => {
+    mockList.mockResolvedValueOnce({ result: [vault()], logs: [] });
+    mockOpenUrl.mockRejectedValueOnce(new Error('scheme not handled'));
+    mockRevealPath.mockResolvedValueOnce(undefined);
+    const onToast = vi.fn();
+    render(<VaultPanel onToast={onToast} />);
+    await waitFor(() => screen.getByTestId('vault-list'));
+
+    fireEvent.click(screen.getByTestId('vault-open'));
+    await waitFor(() => expect(mockOpenUrl).toHaveBeenCalled());
+    await waitFor(() => expect(mockRevealPath).toHaveBeenCalledWith('/Users/me/notes'));
+    expect(onToast).toHaveBeenCalledWith(
+      expect.objectContaining({
+        type: 'info',
+        title: 'Obsidian not found — opened in file manager',
+      })
+    );
+  });
+
+  it('open vault shows error toast when both obsidian and reveal fail', async () => {
+    mockList.mockResolvedValueOnce({ result: [vault()], logs: [] });
+    mockOpenUrl.mockRejectedValueOnce(new Error('scheme not handled'));
+    mockRevealPath.mockRejectedValueOnce(new Error('permission denied'));
+    const onToast = vi.fn();
+    render(<VaultPanel onToast={onToast} />);
+    await waitFor(() => screen.getByTestId('vault-list'));
+
+    fireEvent.click(screen.getByTestId('vault-open'));
+    await waitFor(() => expect(mockOpenUrl).toHaveBeenCalled());
+    await waitFor(() => expect(mockRevealPath).toHaveBeenCalled());
+    expect(onToast).toHaveBeenCalledWith(
+      expect.objectContaining({ type: 'error', title: "Couldn't open vault" })
+    );
+  });
 });
diff --git a/app/src/components/intelligence/VaultPanel.tsx b/app/src/components/intelligence/VaultPanel.tsx
index dfe9ece7d..9311a732e 100644
--- a/app/src/components/intelligence/VaultPanel.tsx
+++ b/app/src/components/intelligence/VaultPanel.tsx
@@ -7,6 +7,7 @@ import { useCallback, useEffect, useRef, useState } from 'react';
 
 import { useT } from '../../lib/i18n/I18nContext';
 import type { ToastNotification } from '../../types/intelligence';
+import { openUrl, revealPath } from '../../utils/openUrl';
 import {
   type CoreVault,
   type CoreVaultSyncState,
@@ -240,6 +241,26 @@ export function VaultPanel({ onToast }: VaultPanelProps) {
     [onToast, reload, t]
   );
 
+  const handleOpenVault = useCallback(
+    async (rootPath: string) => {
+      try {
+        await openUrl(`obsidian://open?path=${encodeURIComponent(rootPath)}`);
+        onToast?.({ type: 'info', title: t('vault.openSuccess'), message: rootPath });
+        return;
+      } catch (err) {
+        console.error('[ui-flow][vault-panel] obsidian deep link failed', err);
+      }
+      try {
+        await revealPath(rootPath);
+        onToast?.({ type: 'info', title: t('vault.openFallback'), message: rootPath });
+      } catch (err) {
+        console.error('[ui-flow][vault-panel] reveal vault failed', err);
+        onToast?.({ type: 'error', title: t('vault.openError'), message: String(err) });
+      }
+    },
+    [onToast, t]
+  );
+
   return (
     <div
       className="rounded-lg border border-stone-200 dark:border-neutral-800 bg-white dark:bg-neutral-900 p-4 shadow-sm"
@@ -360,6 +381,16 @@ export function VaultPanel({ onToast }: VaultPanelProps) {
                   </div>
                 </div>
                 <div className="flex items-center gap-2">
+                  <button
+                    type="button"
+                    onClick={() => void handleOpenVault(v.root_path)}
+                    disabled={state === 'sync' || state === 'remove'}
+                    className="rounded-md border border-stone-300 bg-white dark:bg-neutral-900 px-3 py-1.5 text-xs
+                               font-semibold text-stone-700 dark:text-neutral-200 shadow-sm transition-colors
+                               hover:bg-stone-50 dark:hover:bg-neutral-800 disabled:cursor-not-allowed disabled:opacity-50"
+                    data-testid="vault-open">
+                    {t('vault.openButton')}
+                  </button>
                   <button
                     type="button"
                     onClick={() => void handleSync(v)}
diff --git a/app/src/lib/i18n/ar.ts b/app/src/lib/i18n/ar.ts
index e0a5f1cde..6afeeda6f 100644
--- a/app/src/lib/i18n/ar.ts
+++ b/app/src/lib/i18n/ar.ts
@@ -3988,6 +3988,10 @@ const messages: TranslationMap = {
   'vault.relative.min': 'قبل {count}m',
   'vault.relative.hr': 'قبل {count} قبل',
   'vault.relative.day': 'قبل {count}d',
+  'vault.openButton': 'فتح',
+  'vault.openSuccess': 'تم الفتح في Obsidian',
+  'vault.openFallback': 'لم يتم العثور على Obsidian — تم الفتح في مدير الملفات',
+  'vault.openError': 'تعذر فتح المخزن',
   'whatsapp.title': 'WhatsApp',
   'subconscious.interval.fiveMinutes': '5 دقائق',
   'subconscious.interval.tenMinutes': '10 دقائق',
diff --git a/app/src/lib/i18n/bn.ts b/app/src/lib/i18n/bn.ts
index 3d423f991..081da0614 100644
--- a/app/src/lib/i18n/bn.ts
+++ b/app/src/lib/i18n/bn.ts
@@ -4053,6 +4053,10 @@ const messages: TranslationMap = {
   'vault.relative.min': '{count}মি আগে',
   'vault.relative.hr': '{count}সেকেন্ড আগে',
   'vault.relative.day': '{count}দিন আগে',
+  'vault.openButton': 'Open',
+  'vault.openSuccess': 'Opened in Obsidian',
+  'vault.openFallback': 'Obsidian not found — opened in file manager',
+  'vault.openError': "Couldn't open vault",
   'whatsapp.title': 'WhatsApp',
   'subconscious.interval.fiveMinutes': '5 মিনিট',
   'subconscious.interval.tenMinutes': '10 মিনিট',
diff --git a/app/src/lib/i18n/de.ts b/app/src/lib/i18n/de.ts
index 7a465990d..56f0aad66 100644
--- a/app/src/lib/i18n/de.ts
+++ b/app/src/lib/i18n/de.ts
@@ -4164,6 +4164,10 @@ const messages: TranslationMap = {
   'vault.relative.min': 'vor {count}m',
   'vault.relative.hr': 'vor {count}h',
   'vault.relative.day': 'vor {count}d',
+  'vault.openButton': 'Open',
+  'vault.openSuccess': 'Opened in Obsidian',
+  'vault.openFallback': 'Obsidian not found — opened in file manager',
+  'vault.openError': "Couldn't open vault",
   'whatsapp.title': 'WhatsApp',
   'subconscious.interval.fiveMinutes': '5 Min.',
   'subconscious.interval.tenMinutes': '10 Min.',
diff --git a/app/src/lib/i18n/en.ts b/app/src/lib/i18n/en.ts
index feaa87d48..e50010b1f 100644
--- a/app/src/lib/i18n/en.ts
+++ b/app/src/lib/i18n/en.ts
@@ -4269,6 +4269,10 @@ const en: TranslationMap = {
   'vault.relative.min': '{count}m ago',
   'vault.relative.hr': '{count}h ago',
   'vault.relative.day': '{count}d ago',
+  'vault.openButton': 'Open',
+  'vault.openSuccess': 'Opened in Obsidian',
+  'vault.openFallback': 'Obsidian not found — opened in file manager',
+  'vault.openError': "Couldn't open vault",
   'whatsapp.title': 'WhatsApp',
   'subconscious.interval.fiveMinutes': '5 min',
   'subconscious.interval.tenMinutes': '10 min',
diff --git a/app/src/lib/i18n/es.ts b/app/src/lib/i18n/es.ts
index fb19ad718..748f6c331 100644
--- a/app/src/lib/i18n/es.ts
+++ b/app/src/lib/i18n/es.ts
@@ -4129,6 +4129,10 @@ const messages: TranslationMap = {
   'vault.relative.min': 'Hace {count}m',
   'vault.relative.hr': 'Hace {count}h',
   'vault.relative.day': 'Hace {count}d',
+  'vault.openButton': 'Open',
+  'vault.openSuccess': 'Opened in Obsidian',
+  'vault.openFallback': 'Obsidian not found — opened in file manager',
+  'vault.openError': "Couldn't open vault",
   'whatsapp.title': 'WhatsApp',
   'subconscious.interval.fiveMinutes': '5 minutos',
   'subconscious.interval.tenMinutes': '10 minutos',
diff --git a/app/src/lib/i18n/fr.ts b/app/src/lib/i18n/fr.ts
index 251e0d46b..358139391 100644
--- a/app/src/lib/i18n/fr.ts
+++ b/app/src/lib/i18n/fr.ts
@@ -4146,6 +4146,10 @@ const messages: TranslationMap = {
   'vault.relative.min': 'il y a {count}m',
   'vault.relative.hr': 'il y a {count}h',
   'vault.relative.day': '{count}d',
+  'vault.openButton': 'Ouvrir',
+  'vault.openSuccess': 'Ouvert dans Obsidian',
+  'vault.openFallback': 'Obsidian introuvable — ouvert dans le gestionnaire de fichiers',
+  'vault.openError': 'Impossible d\u0027ouvrir le coffre',
   'whatsapp.title': 'WhatsApp',
   'subconscious.interval.fiveMinutes': '5 min',
   'subconscious.interval.tenMinutes': '10 min',
diff --git a/app/src/lib/i18n/hi.ts b/app/src/lib/i18n/hi.ts
index f1d36537a..1c9554faa 100644
--- a/app/src/lib/i18n/hi.ts
+++ b/app/src/lib/i18n/hi.ts
@@ -4062,6 +4062,10 @@ const messages: TranslationMap = {
   'vault.relative.min': '{count}m पहले',
   'vault.relative.hr': '{count}h पहले',
   'vault.relative.day': '{count}d पहले',
+  'vault.openButton': 'Open',
+  'vault.openSuccess': 'Opened in Obsidian',
+  'vault.openFallback': 'Obsidian not found — opened in file manager',
+  'vault.openError': "Couldn't open vault",
   'whatsapp.title': 'WhatsApp',
   'subconscious.interval.fiveMinutes': '5 मिनट',
   'subconscious.interval.tenMinutes': '10 मिनट',
diff --git a/app/src/lib/i18n/id.ts b/app/src/lib/i18n/id.ts
index ce733463e..ae981cbab 100644
--- a/app/src/lib/i18n/id.ts
+++ b/app/src/lib/i18n/id.ts
@@ -4072,6 +4072,10 @@ const messages: TranslationMap = {
   'vault.relative.min': '{count}m yang lalu',
   'vault.relative.hr': '{count}h yang lalu',
   'vault.relative.day': '{count}d yang lalu',
+  'vault.openButton': 'Buka',
+  'vault.openSuccess': 'Dibuka di Obsidian',
+  'vault.openFallback': 'Obsidian tidak ditemukan — dibuka di pengelola file',
+  'vault.openError': 'Tidak dapat membuka vault',
   'whatsapp.title': 'WhatsApp',
   'subconscious.interval.fiveMinutes': '5 menit',
   'subconscious.interval.tenMinutes': '10 menit',
diff --git a/app/src/lib/i18n/it.ts b/app/src/lib/i18n/it.ts
index b62939a64..cf3cfab83 100644
--- a/app/src/lib/i18n/it.ts
+++ b/app/src/lib/i18n/it.ts
@@ -4123,6 +4123,10 @@ const messages: TranslationMap = {
   'vault.relative.min': '{count}m fa',
   'vault.relative.hr': '{count}h fa',
   'vault.relative.day': '{count}d fa',
+  'vault.openButton': 'Open',
+  'vault.openSuccess': 'Opened in Obsidian',
+  'vault.openFallback': 'Obsidian not found — opened in file manager',
+  'vault.openError': "Couldn't open vault",
   'whatsapp.title': 'WhatsApp',
   'subconscious.interval.fiveMinutes': '5 minuti',
   'subconscious.interval.tenMinutes': '10 minuti',
diff --git a/app/src/lib/i18n/ko.ts b/app/src/lib/i18n/ko.ts
index d53474e87..625516175 100644
--- a/app/src/lib/i18n/ko.ts
+++ b/app/src/lib/i18n/ko.ts
@@ -4023,6 +4023,10 @@ const messages: TranslationMap = {
   'vault.relative.min': '{count}분 전',
   'vault.relative.hr': '{count}시간 전',
   'vault.relative.day': '{count}일 전',
+  'vault.openButton': '열기',
+  'vault.openSuccess': 'Obsidian에서 열림',
+  'vault.openFallback': 'Obsidian을 찾을 수 없음 — 파일 관리자에서 열림',
+  'vault.openError': '볼트를 열 수 없습니다',
   'whatsapp.title': 'WhatsApp',
   'subconscious.interval.fiveMinutes': '5분',
   'subconscious.interval.tenMinutes': '10분',
diff --git a/app/src/lib/i18n/pl.ts b/app/src/lib/i18n/pl.ts
index 3b307c9a4..a8a03b6cb 100644
--- a/app/src/lib/i18n/pl.ts
+++ b/app/src/lib/i18n/pl.ts
@@ -4125,6 +4125,10 @@ const messages: TranslationMap = {
   'vault.relative.min': '{count} min temu',
   'vault.relative.hr': '{count} godz. temu',
   'vault.relative.day': '{count} dni temu',
+  'vault.openButton': 'Open',
+  'vault.openSuccess': 'Opened in Obsidian',
+  'vault.openFallback': 'Obsidian not found — opened in file manager',
+  'vault.openError': "Couldn't open vault",
   'whatsapp.title': 'WhatsApp',
   'subconscious.interval.fiveMinutes': '5 min',
   'subconscious.interval.tenMinutes': '10 min',
diff --git a/app/src/lib/i18n/pt.ts b/app/src/lib/i18n/pt.ts
index 8f8c694c8..7d459fd35 100644
--- a/app/src/lib/i18n/pt.ts
+++ b/app/src/lib/i18n/pt.ts
@@ -4124,6 +4124,10 @@ const messages: TranslationMap = {
   'vault.relative.min': '{count}m atrás',
   'vault.relative.hr': '{count}h atrás',
   'vault.relative.day': '{count}d atrás',
+  'vault.openButton': 'Open',
+  'vault.openSuccess': 'Opened in Obsidian',
+  'vault.openFallback': 'Obsidian not found — opened in file manager',
+  'vault.openError': "Couldn't open vault",
   'whatsapp.title': 'WhatsApp',
   'subconscious.interval.fiveMinutes': '5 minutos',
   'subconscious.interval.tenMinutes': '10 minutos',
diff --git a/app/src/lib/i18n/ru.ts b/app/src/lib/i18n/ru.ts
index c980b0838..8d4eed196 100644
--- a/app/src/lib/i18n/ru.ts
+++ b/app/src/lib/i18n/ru.ts
@@ -4092,6 +4092,10 @@ const messages: TranslationMap = {
   'vault.relative.min': '{count}m назад',
   'vault.relative.hr': '{count}h назад',
   'vault.relative.day': '{count}d назад',
+  'vault.openButton': 'Открыть',
+  'vault.openSuccess': 'Открыто в Obsidian',
+  'vault.openFallback': 'Obsidian не найден — открыто в файловом менеджере',
+  'vault.openError': 'Не удалось открыть хранилище',
   'whatsapp.title': 'WhatsApp',
   'subconscious.interval.fiveMinutes': '5 минут',
   'subconscious.interval.tenMinutes': '10 минут',
diff --git a/app/src/lib/i18n/zh-CN.ts b/app/src/lib/i18n/zh-CN.ts
index dfc7e77a5..f2c86392b 100644
--- a/app/src/lib/i18n/zh-CN.ts
+++ b/app/src/lib/i18n/zh-CN.ts
@@ -3865,6 +3865,10 @@ const messages: TranslationMap = {
   'vault.relative.min': '{count}分钟前',
   'vault.relative.hr': '{count} 小时前',
   'vault.relative.day': '{count} 天前',
+  'vault.openButton': '打开',
+  'vault.openSuccess': '已在 Obsidian 中打开',
+  'vault.openFallback': '未找到 Obsidian — 已在文件管理器中打开',
+  'vault.openError': '无法打开保管库',
   'whatsapp.title': 'WhatsApp',
   'subconscious.interval.fiveMinutes': '5分钟',
   'subconscious.interval.tenMinutes': '10分钟',