diff --git a/plugins/files/PLAN_FILES_IMPROVEMENTS.md b/plugins/files/PLAN_FILES_IMPROVEMENTS.md
index a1169d8..8913082 100644
--- a/plugins/files/PLAN_FILES_IMPROVEMENTS.md
+++ b/plugins/files/PLAN_FILES_IMPROVEMENTS.md
@@ -9,7 +9,7 @@
 | # | Feature | Приоритет | Зависит от |
 |---|---------|-----------|------------|
 | 1 | Контекстное меню (правый клик) | 🔥 High | — |
-| 2 | Open External / Show in Explorer fallback | ✅ Done | — |
+| 2 | Open External / Show in Explorer | ✅ Done | `files.openExternal` |
 | 3 | Кастомный ConfirmModal | 🔥 High | — |
 | 4 | Duplicate | 🔥 High | — |
 | 5 | Cut/Copy/Paste | 🔥 High | — |
@@ -38,16 +38,15 @@
 
 ---
 
-### Feature 2: Open External / Show in Explorer fallback
+### Feature 2: Open External / Show in Explorer
 
-**Описание:** Пункты меню для будущего открытия файла во внешнем приложении и
-показа папки в системном файловом менеджере.
+**Описание:** Пункты меню для открытия файла во внешнем приложении и показа
+файла/папки в системном файловом менеджере.
 
-**Текущий v2 статус:** core/runtime API для внешнего открытия пока нет, поэтому
-пункты меню показывают fallback modal с vault-relative path и кнопкой `Copy Path`.
-Никаких v1 Wails мостов или прямых backend calls.
-
-Полное внешнее открытие остается deferred до отдельного публичного v2 API.
+**Текущий v2 статус:** плагин использует публичные методы
+`api.files.openExternal(relativePath)` и `api.files.showInFolder(relativePath)`,
+guarded by `files.openExternal`. Fallback modal с vault-relative path и кнопкой
+`Copy Path` показывается только если API недоступен или вернул ошибку.
 
 **Файлы:** `plugins/files/frontend/src/index.js`
 
diff --git a/plugins/files/frontend/src/index.js b/plugins/files/frontend/src/index.js
index 3d3066b..7b06fc5 100644
--- a/plugins/files/frontend/src/index.js
+++ b/plugins/files/frontend/src/index.js
@@ -271,14 +271,14 @@
     return Promise.reject(new Error('clipboard unavailable'));
   }
 
-  function showExternalFallback(entry, mode) {
+  function showExternalFallback(entry, mode, reason) {
     if (!entry) return;
     var pathToShow = entry.relativePath;
     if (mode === 'explorer' && entry.type !== 'folder') {
       pathToShow = parentPath(entry.relativePath) || entry.relativePath;
     }
     var title = mode === 'explorer' ? 'Show in Explorer' : 'Open External';
-    var message = title + ' is not available in the current v2 runtime yet.\nVault-relative path:\n' + pathToShow;
+    var message = title + ' failed.\n' + (reason ? String(reason) + '\n' : '') + 'Vault-relative path:\n' + pathToShow;
     confirmModal(message, { confirmText: 'Copy Path', cancelText: 'Close' }).then(function (copy) {
       if (!copy) return;
       copyTextToClipboard(pathToShow).catch(function (err) {
@@ -796,6 +796,19 @@
         return el('div', { className: 'files-ctx-menu-sep' });
       }
 
+      function openExternalEntry(entry, mode) {
+        if (!entry) return;
+        var filesApi = api && api.files;
+        var action = mode === 'explorer' ? filesApi && filesApi.showInFolder : filesApi && filesApi.openExternal;
+        if (typeof action !== 'function') {
+          showExternalFallback(entry, mode, 'files external-open API is unavailable.');
+          return;
+        }
+        action(entry.relativePath).catch(function (err) {
+          showExternalFallback(entry, mode, err && err.message ? err.message : err);
+        });
+      }
+
       function showCtxMenu(x, y, entry) {
         ctxTarget = entry;
         ctxMenu.innerHTML = '';
@@ -808,8 +821,8 @@
           }
           var isFolder = entry.type === 'folder';
           ctxMenu.appendChild(ctxItem(isFolder ? 'Open Folder' : 'Open', '', function () { openEntry(entry); }, 'open', 'open'));
-          ctxMenu.appendChild(ctxItem('Open External', '', function () { showExternalFallback(entry, 'external'); }, 'open-external', 'external'));
-          ctxMenu.appendChild(ctxItem('Show in Explorer', '', function () { showExternalFallback(entry, 'explorer'); }, 'show-in-explorer', 'explorer'));
+          ctxMenu.appendChild(ctxItem('Open External', '', function () { openExternalEntry(entry, 'external'); }, 'open-external', 'external'));
+          ctxMenu.appendChild(ctxItem('Show in Explorer', '', function () { openExternalEntry(entry, 'explorer'); }, 'show-in-explorer', 'explorer'));
           ctxMenu.appendChild(ctxSep());
           ctxMenu.appendChild(ctxItem('Rename', '', function () { beginRename(entry); }, 'rename', 'rename'));
           if (entry.type !== 'folder') {
diff --git a/plugins/files/plugin.json b/plugins/files/plugin.json
index a62470e..387661c 100644
--- a/plugins/files/plugin.json
+++ b/plugins/files/plugin.json
@@ -18,6 +18,7 @@
     "files.read",
     "files.write",
     "files.delete",
+    "files.openExternal",
     "workbench.open",
     "ui.register"
   ],
diff --git a/scripts/smoke-files-plugin.js b/scripts/smoke-files-plugin.js
index e1a3eb9..122e1a5 100755
--- a/scripts/smoke-files-plugin.js
+++ b/scripts/smoke-files-plugin.js
@@ -196,7 +196,9 @@ function loadFilesComponent(document) {
 }
 
 function makeApi() {
+  const externalCalls = [];
   return {
+    externalCalls,
     files: {
       list: async () => [
         {
@@ -214,6 +216,8 @@ function makeApi() {
       createFolder: async () => undefined,
       move: async () => undefined,
       trash: async () => undefined,
+      openExternal: async (relativePath) => { externalCalls.push({ action: 'open', path: relativePath }); },
+      showInFolder: async (relativePath) => { externalCalls.push({ action: 'show', path: relativePath }); },
     },
     workbench: {
       openResource: async () => ({ status: 'opened' }),
@@ -229,7 +233,8 @@ async function flush() {
   const document = makeDocument();
   const { component, clipboard } = loadFilesComponent(document);
   const container = new FakeNode('div');
-  component.mount(container, {}, makeApi());
+  const api = makeApi();
+  component.mount(container, {}, api);
   await flush();
 
   const row = walk(container, (node) => node.getAttribute && node.getAttribute('data-file-path') === 'Docs/readme.md');
@@ -245,12 +250,21 @@ async function flush() {
   if (!showInExplorer) throw new Error('Show in Explorer menu item not found');
 
   openExternal.click();
-  const copyButton = walk(document.body, (node) => node.tagName === 'BUTTON' && node.textContent === 'Copy Path');
-  if (!copyButton) throw new Error('external fallback did not show Copy Path action');
-  copyButton.click();
   await flush();
-  if (clipboard.written[0] !== 'Docs/readme.md') {
-    throw new Error(`expected copied path Docs/readme.md, got ${clipboard.written[0] || '<none>'}`);
+  if (!api.externalCalls.some((call) => call.action === 'open' && call.path === 'Docs/readme.md')) {
+    throw new Error(`expected openExternal call for Docs/readme.md, got ${JSON.stringify(api.externalCalls)}`);
+  }
+  if (walk(document.body, (node) => node.tagName === 'BUTTON' && node.textContent === 'Copy Path')) {
+    throw new Error('external fallback should not show Copy Path after successful API call');
+  }
+
+  showInExplorer.click();
+  await flush();
+  if (!api.externalCalls.some((call) => call.action === 'show' && call.path === 'Docs/readme.md')) {
+    throw new Error(`expected showInFolder call for Docs/readme.md, got ${JSON.stringify(api.externalCalls)}`);
+  }
+  if (clipboard.written.length !== 0) {
+    throw new Error(`expected no copied path after successful external API calls, got ${clipboard.written.join(', ')}`);
   }
 
   console.log('files frontend smoke passed');