diff --git a/README.md b/README.md
index 5b57c7a..f69c18a 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@
 </p>
 
 <p align="center">
-  <img src="https://img.shields.io/badge/version-v0.12.5-E8734A?style=flat-square" alt="version">
+  <img src="https://img.shields.io/badge/version-v0.12.9-E8734A?style=flat-square" alt="version">
   <img src="https://img.shields.io/badge/electron-33+-47848F?style=flat-square&logo=electron" alt="electron">
   <img src="https://img.shields.io/badge/typescript-5.7+-3178C6?style=flat-square&logo=typescript" alt="typescript">
   <img src="https://img.shields.io/badge/license-MIT-green?style=flat-square" alt="license">
@@ -256,7 +256,7 @@ npm start
 ELECTRON_MIRROR=https://npmmirror.com/mirrors/electron/ npm run dist
 ```
 
-产出：`release/Metona Ollama Setup v0.12.5.exe`
+产出：`release/Metona Ollama Setup v0.12.9.exe`
 
 ## 🛠️ 常用命令
 
@@ -507,7 +507,7 @@ npm start
 ELECTRON_MIRROR=https://npmmirror.com/mirrors/electron/ npm run dist
 ```
 
-Output: `release/Metona Ollama Setup v0.12.5.exe`
+Output: `release/Metona Ollama Setup v0.12.9.exe`
 
 ## 🛠️ Common Commands
 
diff --git a/package-lock.json b/package-lock.json
index 68094e7..a263547 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "metona-ollama-desktop",
-  "version": "0.12.5",
+  "version": "0.12.9",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "metona-ollama-desktop",
-      "version": "0.12.5",
+      "version": "0.12.9",
       "license": "MIT",
       "dependencies": {
         "ffmpeg-static": "^5.2.0",
diff --git a/package.json b/package.json
index b7ece6d..d13d3fc 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "metona-ollama-desktop",
-  "version": "0.12.5",
+  "version": "0.12.9",
   "description": "Metona Ollama - TypeScript + Electron \u684c\u9762 AI \u804a\u5929\u5ba2\u6237\u7aef",
   "main": "dist/main/main.js",
   "author": "thzxx",
diff --git a/src/main/ipc.ts b/src/main/ipc.ts
index 68cb9cd..dfabb34 100644
--- a/src/main/ipc.ts
+++ b/src/main/ipc.ts
@@ -130,6 +130,14 @@ export async function setupIPC(): Promise<void> {
     return result.filePath;
   });
 
+  ipcMain.handle('dialog:openDirectory', async () => {
+    const result = await dialog.showOpenDialog(mainWindow!, {
+      properties: ['openDirectory']
+    });
+    if (result.canceled) return null;
+    return result.filePaths;
+  });
+
   ipcMain.handle('fs:readFile', async (_, filePath: string) => {
     try {
       const check = checkPathAllowed(path.resolve(filePath), 'read');
diff --git a/src/main/menu.ts b/src/main/menu.ts
index 39a6c8c..b707874 100644
--- a/src/main/menu.ts
+++ b/src/main/menu.ts
@@ -101,7 +101,7 @@ export function createMenu(): void {
             dialog.showMessageBox(mainWindow!, {
               type: 'info',
               title: '关于 Metona Ollama',
-              message: 'Metona Ollama Desktop v0.12.5',
+              message: 'Metona Ollama Desktop v0.12.9',
               detail: 'TypeScript + Electron Ollama AI 聊天客户端\n\nhttps://gitee.com/thzxx/metona-ollama',
               icon: getIconPath()
             });
diff --git a/src/main/preload.ts b/src/main/preload.ts
index 35bb05b..0211920 100644
--- a/src/main/preload.ts
+++ b/src/main/preload.ts
@@ -19,7 +19,8 @@ contextBridge.exposeInMainWorld('metonaDesktop', {
   },
   dialog: {
     openFile: (options?: unknown) => ipcRenderer.invoke('dialog:openFile', options),
-    saveFile: (options?: unknown) => ipcRenderer.invoke('dialog:saveFile', options)
+    saveFile: (options?: unknown) => ipcRenderer.invoke('dialog:saveFile', options),
+    openDirectory: () => ipcRenderer.invoke('dialog:openDirectory')
   },
   fs: {
     readFile: (filePath: string) => ipcRenderer.invoke('fs:readFile', filePath),
diff --git a/src/renderer/components/settings-modal.ts b/src/renderer/components/settings-modal.ts
index 007e18c..ea241e8 100644
--- a/src/renderer/components/settings-modal.ts
+++ b/src/renderer/components/settings-modal.ts
@@ -267,12 +267,11 @@ export function initSettingsModal(): void {
     btnBrowseWorkspace.addEventListener('click', async () => {
       const bridge = window.metonaDesktop;
       if (!bridge?.isDesktop) return;
-      const paths = await bridge.dialog.openFile({
-        filters: [{ name: '文件夹', extensions: ['*'] }]
-      });
-      // Electron openFile 对话框不能直接选文件夹，这里用 saveFile 代替
-      // 或者让用户手动输入路径
-      showToast('请在输入框中直接修改路径', 'info');
+      const paths = await bridge.dialog.openDirectory();
+      if (paths && paths.length > 0) {
+        inputWorkspaceDir.value = paths[0];
+        inputWorkspaceDir.dispatchEvent(new Event('blur'));
+      }
     });
     // 双击输入框解锁编辑
     inputWorkspaceDir.addEventListener('dblclick', () => {
diff --git a/src/renderer/index.html b/src/renderer/index.html
index 6002790..99e035f 100644
--- a/src/renderer/index.html
+++ b/src/renderer/index.html
@@ -28,7 +28,7 @@
         <div class="header-left">
             <span class="logo">🦙</span>
             <span class="app-title">Metona Ollama</span>
-            <span class="app-version">v0.12.5</span>
+            <span class="app-version">v0.12.9</span>
             <button class="icon-btn help-btn" id="btnHelp" title="使用帮助">
                 <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
                     <circle cx="12" cy="12" r="10"/><path d="M9.09 9a3 3 0 0 1 5.83 1c0 2-3 3-3 3"/>
diff --git a/src/renderer/services/agent-engine.ts b/src/renderer/services/agent-engine.ts
index b66a099..d0e6928 100644
--- a/src/renderer/services/agent-engine.ts
+++ b/src/renderer/services/agent-engine.ts
@@ -12,7 +12,6 @@ import {
   needsConfirmation,
   initPlanTracker,
   getPlanTracker,
-  savePlanTracker,
   formatPlanStatus,
   clearPlanTracker,
 } from './tool-registry.js';
@@ -679,50 +678,19 @@ function truncateByTokenBudget(text: string, maxTokens: number): string {
 function extractPlanSteps(content: string): string[] {
   const steps: string[] = [];
   const stepRegex = /(?:^|\n)\s*(?:\d+[\.\)、]\s*|[-*]\s+)(.+)/g;
+  // 过滤项：阶段标题、HTML 标记、纯格式描述
+  const filterPatterns = [/^\*\*.*阶段.*\*\*/, /\*\*第[一二三]|\*\*Phase/, /^```/, /^<\/?/, /^Stage/i];
+  // 动作动词：步骤必须包含至少一个表示"要做什么"的词
+  const ACTION_VERBS = /搜索|查找|检索|抓取|fetch|写入|write|创建|生成|运行|执行|打开|浏览|读取|下载|提交|推送|编译|压缩|解压|截图|提取|设计|构建|编码|HTML|CSS|组织|整理|归类|搜集|汇总/;
   let match;
   while ((match = stepRegex.exec(content)) !== null) {
     const step = match[1].trim();
-    if (step.length > 5 && step.length < 200) {
-      steps.push(step);
-    }
-  }
-  return steps.length > 0 ? steps.slice(0, 10) : ['执行任务计划（详见上方描述）'];
-}
-
-/** Plan Mode 自动追踪：工具执行成功后，匹配 Plan 步骤并自动标记完成 */
-function autoTrackPlanStep(toolName: string): void {
-  const tracker = getPlanTracker();
-  if (!tracker.active || tracker.steps.length === 0) return;
-
-  // 工具名 → 计划步骤关键词映射（用于自动匹配）
-  const TOOL_STEP_KEYWORDS: Record<string, string[]> = {
-    web_search: ['搜索', '查找', '检索', 'search', '查询'],
-    web_fetch: ['抓取', 'fetch', '获取', '浏览', '提取内容'],
-    read_file: ['读取', 'read', '查看', '检查'],
-    write_file: ['写入', 'write', '生成', '创建.*文件', '保存', '输出'],
-    edit_file: ['编辑', '修改', 'edit'],
-    list_directory: ['列出', 'list', '浏览.*目录', '查看.*结构'],
-    tree: ['目录树', 'tree', '结构'],
-    run_command: ['运行', '执行', 'run', '命令', '编译', '测试'],
-    git: ['git', '提交', '推送', '暂存', 'commit'],
-    browser_open: ['打开.*网页', '浏览器', 'browser'],
-  };
-
-  const keywords = TOOL_STEP_KEYWORDS[toolName] || [];
-  if (keywords.length === 0) return;
-
-  for (const step of tracker.steps) {
-    if (step.done) continue;
-    for (const kw of keywords) {
-      if (new RegExp(kw, 'i').test(step.label)) {
-        step.done = true;
-        tracker.done = tracker.steps.filter(s => s.done).length;
-        savePlanTracker(tracker);
-        logInfo(`Plan 自动追踪: ${toolName} → 步骤${step.index} "${step.label}" 已自动标记完成 (${tracker.done}/${tracker.total})`);
-        return; // 一个工具只标记一个步骤
-      }
-    }
+    if (step.length < 5 || step.length > 200) continue;
+    if (filterPatterns.some(p => p.test(step))) continue;
+    if (!ACTION_VERBS.test(step)) continue; // 纯描述无动词，跳过
+    steps.push(step);
   }
+  return steps.length > 0 ? steps.slice(0, 6) : ['执行任务计划（详见上方描述）'];
 }
 
 /**
@@ -1005,13 +973,17 @@ async function handleThinking(
       });
       logInfo('待办追踪: 注入未完成任务提醒', pending.join(', '));
     } else if (allMentioned.length > 0) {
-      // 全部待办已完成 → 注入正面确认信号，防止模型"遗忘"已完成的写入操作
-      ctx.messages.push({
-        role: 'user',
-        content: `✅ 待办检测：用户请求中的全部操作已实际执行完成（${allMentioned.join('、')}）。如果检索到的信息已经足够，请直接给出最终回答，不要再重复调用已执行过的工具。`,
-        ephemeral: true,
-      });
-      logInfo('待办追踪: 全部完成，注入完成确认', allMentioned.join(', '));
+      // 全部待办已完成 → 注入 system 级别确认信号（去重：不重复注入）
+      const alreadySignaled = ctx.messages.slice(-3).some(
+        m => m.role === 'system' && m.content?.includes('待办检测：用户请求中的全部操作已实际执行完成')
+      );
+      if (!alreadySignaled) {
+        ctx.messages.push({
+          role: 'system',
+          content: `✅ 待办检测：用户请求中的全部操作已实际执行完成（${allMentioned.join('、')}）。不要再调用工具，直接输出最终回答。`,
+        });
+        logInfo('待办追踪: 全部完成，注入完成确认', allMentioned.join(', '));
+      }
     }
   }
 
@@ -1287,8 +1259,17 @@ async function handleExecuting(
     callbacks.onToolCallStart(call);
     logToolStart(call.function.name, JSON.stringify(call.function.arguments));
 
-    // ── pre_tool Hook ──
-    await executeHooks('pre_tool', ctx, { toolName: call.function.name, toolArgs: call.function.arguments });
+    // ── pre_tool Hook（可阻断）──
+    const hookResult = await executeHooks('pre_tool', ctx, { toolName: call.function.name, toolArgs: call.function.arguments });
+    if (!hookResult.allPassed) {
+      const reasons = hookResult.results.filter(r => !r.passed).map(r => r.message).join('; ');
+      logWarn(`pre_tool Hook 阻断: ${call.function.name}`, reasons);
+      return [{
+        name: call.function.name, arguments: call.function.arguments,
+        result: { success: true, error: '', message: reasons },
+        status: 'success' as const, timestamp: Date.now()
+      }, null];
+    }
 
     await new Promise(r => requestAnimationFrame(r));
 
@@ -1368,10 +1349,6 @@ async function handleExecuting(
       }
       // ── post_tool Hook ──
       executeHooks('post_tool', ctx, { toolName: record.name, toolArgs: record.arguments, toolResult: record.result! });
-      // ── Plan Mode 自动追踪 — 工具执行成功后自动匹配 Plan 步骤标记完成 ──
-      if (record.status === 'success' && ctx.mode === 'plan') {
-        autoTrackPlanStep(record.name);
-      }
       if (record.status === 'success') {
         callbacks.onToolCallResult(record.name, record.result!, batch.find(c => c.function.name === record.name)!);
       } else if (record.status === 'cancelled') {
@@ -1513,7 +1490,13 @@ async function handleReflecting(
   // ── 异常1: 空响应 + 有工具历史 → 模型可能困惑 → 注入提示 ──
   if (ctx.toolCalls.length === 0 && !ctx.content.trim() && ctx.loopCount > 1 && ctx.allToolRecords.length > 0) {
     logWarn('模型返回空内容（有未处理的工具结果），注入继续提示');
-    ctx.messages.pop();
+    // 精准移除最后一条 assistant 消息（而非盲目 pop）
+    for (let i = ctx.messages.length - 1; i >= 0; i--) {
+      if (ctx.messages[i].role === 'assistant') {
+        ctx.messages.splice(i, 1);
+        break;
+      }
+    }
     ctx.messages.push({
       role: 'user',
       content: '请根据上面的工具调用结果继续回答。如果需要更多信息，可以继续调用工具。如果已有足够信息，请给出最终回答。'
@@ -1537,7 +1520,6 @@ async function handleReflecting(
             content: '已达到最大计划重试次数。请基于当前计划直接开始执行任务。',
             ephemeral: true,
           });
-          ctx.loopCount = 0;
           transition(ctx, S.THINKING);
           return;
         }
@@ -1547,7 +1529,6 @@ async function handleReflecting(
           content: '请基于反馈重新规划。调整你的方案后再次输出计划。',
           ephemeral: true,
         });
-        ctx.loopCount = 0;
         transition(ctx, S.THINKING);
         return;
       }
@@ -1603,9 +1584,25 @@ async function handleReflecting(
       if (gateResult.critical) {
         // 阻断级失败：强制模型重新回答
         logWarn(`Completion Gate 🔴阻断: ${gateResult.reason}`);
+        // 检测是否所有待办任务已完成 — 若是，则只要求修改措辞；若待办中仍有被 Gate 拦截的操作，则明确要求调用工具
+        const firstUserMsg = ctx.messages.find(m => m.role === 'user');
+        const userText = firstUserMsg?.content || '';
+        const stillPending = detectPendingActions(userText, ctx.allToolRecords);
+        const gateReason = gateResult.reason || '';
+        let retryMsg: string;
+        if (stillPending.length === 0) {
+          retryMsg = `⚠️ 完成检查发现问题: ${gateReason}\n注意：你的所有工具调用已经实际完成。请只修改文字措辞消除上述问题，**绝对不要**调用任何新工具。直接重新输出修正后的文字即可。`;
+        } else if (gateReason.includes('写入') && stillPending.some(p => p.includes('写入'))) {
+          // 关键：模型声称写了文件但实际没调 write_file → 明确要求调用工具
+          retryMsg = `⚠️ 你还没有实际调用 write_file 工具写入文件，但回复中声称已写入。\n请**立即调用 write_file** 工具将内容写入工作空间，不要只在文字中描述。\n待完成任务: ${stillPending.join('、')}`;
+        } else if (gateReason.includes('搜索') && stillPending.some(p => p.includes('搜索'))) {
+          retryMsg = `⚠️ 你还没有实际调用 web_search 工具，但回复中声称已搜索。\n请**立即调用 web_search** 工具执行搜索。\n待完成任务: ${stillPending.join('、')}`;
+        } else {
+          retryMsg = `⚠️ 完成检查发现问题: ${gateReason}\n请修正后重新给出回答。待完成任务: ${stillPending.join('、')}`;
+        }
         ctx.messages.push({
           role: 'user',
-          content: `⚠️ 完成检查发现严重问题: ${gateResult.reason}\n请修正后重新给出回答。`,
+          content: retryMsg,
           ephemeral: true,
         });
         transition(ctx, S.THINKING);
diff --git a/src/renderer/services/completion-gate.ts b/src/renderer/services/completion-gate.ts
index 94bb292..13d3ea5 100644
--- a/src/renderer/services/completion-gate.ts
+++ b/src/renderer/services/completion-gate.ts
@@ -144,9 +144,9 @@ const toolHallucinationCheck: CompletionCheck = {
       { patterns: [/已写入文件/, /已创建文件/, /文件已生成/, /已保存到/, /已成功创建/, /成功写入/,
                    /文件.*已.*创建/, /文件.*已.*写入/, /生成.*文件/, /写入.*工作空间/],
         requiredTools: ['write_file'], label: '写入/创建文件' },
-      // 文件读取
-      { patterns: [/已读取文件/, /文件内容显示/, /读取了.*文件/, /文件.*内容.*如下/,
-                   /查看.*文件.*内容/, /打开文件.*看到/],
+      // 文件读取（仅匹配明确声称调用了 read_file 工具的场景）
+      { patterns: [/用read_file读取了/, /调用read_file.*读取/, /通过read_file工具/,
+                   /使用read_file.*查看了/, /read_file.*工具.*读取了/],
         requiredTools: ['read_file', 'read_multiple_files'], label: '读取文件' },
       // 文件编辑
       { patterns: [/已修改文件/, /已编辑文件/, /文件已更新/, /已替换.*内容/,
@@ -208,6 +208,10 @@ const toolHallucinationCheck: CompletionCheck = {
         if (pattern.test(content)) {
           const anyCalled = rule.requiredTools.some(t => calledTools.has(t));
           if (!anyCalled) {
+            // 写后读豁免：write_file 已调用时，read_file 的声称通常是读取写入结果的自然表述，不阻断
+            if (rule.label === '读取文件' && calledTools.has('write_file')) {
+              return { passed: true, reason: '' };
+            }
             const toolList = rule.requiredTools.join(' / ');
             return {
               passed: false,
diff --git a/src/renderer/services/hooks.ts b/src/renderer/services/hooks.ts
index 1847fc8..edb4d62 100644
--- a/src/renderer/services/hooks.ts
+++ b/src/renderer/services/hooks.ts
@@ -218,6 +218,112 @@ export const iterationMetricsHook: HarnessHook = {
   },
 };
 
+// ═══════════════════════════════════════════════════════════════
+// Harness Hook: 文件写入去重
+// ═══════════════════════════════════════════════════════════════
+
+/** 会话级已写入文件路径集合 — 由 FileWriteDedupHook 和 PlanAutoTrackHook 共同维护 */
+const _writtenFilesThisSession = new Set<string>();
+
+/**
+ * FileWriteDedupHook — write_file 同路径去重（pre_tool 阻断级）
+ * 同一文件路径在本会话中已成功写入后，后续写入被拦截，
+ * 防止模型在设计迭代中反复覆盖同一文件。
+ */
+export const fileWriteDedupHook: HarnessHook = {
+  name: 'FileWriteDedup',
+  phase: 'pre_tool',
+  priority: 95,
+  enabled: true,
+  handler: async (_ctx: LoopContext, data: HookData) => {
+    if (data.toolName !== 'write_file') return { passed: true, message: '' };
+    const filePath = String(data.toolArgs?.path || '');
+    if (!filePath) return { passed: true, message: '' };
+    if (_writtenFilesThisSession.has(filePath)) {
+      return { passed: false, message: `文件 "${filePath}" 已在本会话中写入，无需重复覆盖。请直接给出最终回答。` };
+    }
+    return { passed: true, message: '' };
+  },
+};
+
+/**
+ * PlanAutoTrackHook — Plan Mode 步骤自动追踪（post_tool 非阻断级）
+ * 工具执行成功后自动匹配 Plan 步骤标记完成，不再依赖模型手动调用 plan_track。
+ * write_file 成功后还会自动标记所有"设计/构建/编码"类步骤。
+ */
+export const planAutoTrackHook: HarnessHook = {
+  name: 'PlanAutoTrack',
+  phase: 'post_tool',
+  priority: 80,
+  enabled: true,
+  handler: async (ctx: LoopContext, data: HookData) => {
+    if (ctx.mode !== 'plan') return { passed: true, message: '' };
+    const toolName = data.toolName || '';
+    const toolResult = data.toolResult as Record<string, unknown> | undefined;
+    if (!toolResult?.success) return { passed: true, message: '' };
+
+    // 延迟导入避免循环依赖
+    const { getPlanTracker, savePlanTracker } = await import('./tool-registry.js');
+    const tracker = getPlanTracker();
+    if (!tracker.active || tracker.steps.length === 0) return { passed: true, message: '' };
+
+    // 工具名 → 计划步骤关键词映射
+    const TOOL_STEP_KEYWORDS: Record<string, string[]> = {
+      web_search: ['搜索', '查找', '检索', 'search', '查询'],
+      web_fetch: ['抓取', 'fetch', '获取', '浏览', '提取内容'],
+      read_file: ['读取', 'read', '查看', '检查'],
+      write_file: ['写入', 'write', '生成.*文件', '创建.*文件', '文件.*生成', '保存.*文件', '输出.*文件'],
+      edit_file: ['编辑', '修改', 'edit'],
+      list_directory: ['列出', 'list', '浏览.*目录', '查看.*结构'],
+      tree: ['目录树', 'tree', '结构'],
+      run_command: ['运行', '执行', 'run', '命令', '编译', '测试'],
+      git: ['git', '提交', '推送', '暂存', 'commit'],
+      browser_open: ['打开.*网页', '浏览器', 'browser'],
+    };
+
+    const keywords = TOOL_STEP_KEYWORDS[toolName] || [];
+    let matched = false;
+
+    if (keywords.length > 0) {
+      for (const step of tracker.steps) {
+        if (step.done) continue;
+        for (const kw of keywords) {
+          if (new RegExp(kw, 'i').test(step.label)) {
+            step.done = true;
+            tracker.done = tracker.steps.filter(s => s.done).length;
+            savePlanTracker(tracker);
+            logInfo(`Plan 自动追踪: ${toolName} → 步骤${step.index} "${step.label.slice(0, 40)}" (${tracker.done}/${tracker.total})`);
+            matched = true;
+            break;
+          }
+        }
+        if (matched) break;
+      }
+    }
+
+    // write_file 成功后，自动标记所有"设计/构建/编码"类步骤
+    if (toolName === 'write_file') {
+      const DESIGN_KEYWORDS = /HTML|CSS|构建|编码|设计|代码|前端|布局|排版|样式|视觉|coding|design|style/i;
+      for (const step of tracker.steps) {
+        if (step.done) continue;
+        if (DESIGN_KEYWORDS.test(step.label)) {
+          step.done = true;
+          tracker.done = tracker.steps.filter(s => s.done).length;
+          savePlanTracker(tracker);
+          logInfo(`Plan 自动追踪: write_file → 设计步骤${step.index} "${step.label.slice(0, 40)}" (${tracker.done}/${tracker.total})`);
+        }
+      }
+    }
+
+    // write_file 成功后记录文件路径，供 FileWriteDedupHook 拦截
+    if (toolName === 'write_file' && data.toolArgs?.path) {
+      _writtenFilesThisSession.add(String(data.toolArgs.path));
+    }
+
+    return { passed: true, message: '' };
+  },
+};
+
 // ═══════════════════════════════════════════════════════════════
 // 初始化：注册所有内置 Hook
 // ═══════════════════════════════════════════════════════════════
@@ -229,6 +335,8 @@ export function initHarnessHooks(): void {
   registerHook(securityCheckHook);
   registerHook(resultValidationHook);
   registerHook(iterationMetricsHook);
+  registerHook(fileWriteDedupHook);
+  registerHook(planAutoTrackHook);
   hooksInitialized = true;
   logInfo('Harness Hook 系统已初始化', `${hookRegistry.size} 个 Hook 已注册`);
 }
diff --git a/src/renderer/types.d.ts b/src/renderer/types.d.ts
index 37e2a5c..2ef0f47 100644
--- a/src/renderer/types.d.ts
+++ b/src/renderer/types.d.ts
@@ -224,6 +224,7 @@ export interface MetonaDesktopAPI {
   dialog: {
     openFile: (options?: FileFilterOptions) => Promise<string[] | null>;
     saveFile: (options?: SaveFileOptions) => Promise<string | null>;
+    openDirectory: () => Promise<string[] | null>;
   };
   fs: {
     readFile: (filePath: string) => Promise<{ success: boolean; content?: string; name?: string; error?: string }>;