diff --git a/.gitignore b/.gitignore
index 0c90caa8..20178d76 100644
--- a/.gitignore
+++ b/.gitignore
@@ -26,3 +26,4 @@ local-dev*
 *.njsproj
 *.sln
 *.sw?
+.opencode/plans/*
diff --git a/packages/ui/src/components/session/DirectoryTree.tsx b/packages/ui/src/components/session/DirectoryTree.tsx
index b3a02e08..0e6d05eb 100644
--- a/packages/ui/src/components/session/DirectoryTree.tsx
+++ b/packages/ui/src/components/session/DirectoryTree.tsx
@@ -582,7 +582,7 @@ export const DirectoryTree: React.FC<DirectoryTreeProps> = ({
     const fullPath = `${creatingInPath}/${dirName}`;
 
     try {
-      await opencodeClient.createDirectory(fullPath);
+      await opencodeClient.createDirectory(fullPath, { allowOutsideWorkspace: true });
 
       const children = await loadDirectory(creatingInPath);
       const updateItems = (items: DirectoryItem[]): DirectoryItem[] => {
diff --git a/packages/ui/src/lib/opencode/client.ts b/packages/ui/src/lib/opencode/client.ts
index 5727380b..44cce646 100644
--- a/packages/ui/src/lib/opencode/client.ts
+++ b/packages/ui/src/lib/opencode/client.ts
@@ -1752,7 +1752,10 @@ class OpencodeService {
   }
 
   // File System Operations
-  async createDirectory(dirPath: string): Promise<{ success: boolean; path: string }> {
+  async createDirectory(
+    dirPath: string,
+    options?: { allowOutsideWorkspace?: boolean }
+  ): Promise<{ success: boolean; path: string }> {
     const desktopFiles = getDesktopFilesApi();
     if (desktopFiles?.createDirectory) {
       try {
@@ -1763,12 +1766,17 @@ class OpencodeService {
       }
     }
 
+    const payload = {
+      path: dirPath,
+      ...(options?.allowOutsideWorkspace ? { allowOutsideWorkspace: true } : {}),
+    };
+
     const response = await fetch(`${this.baseUrl}/fs/mkdir`, {
       method: 'POST',
       headers: {
         'Content-Type': 'application/json',
       },
-      body: JSON.stringify({ path: dirPath }),
+      body: JSON.stringify(payload),
     });
 
     if (!response.ok) {
diff --git a/packages/web/server/index.js b/packages/web/server/index.js
index 18c572d4..8d0ea3a2 100644
--- a/packages/web/server/index.js
+++ b/packages/web/server/index.js
@@ -6151,20 +6151,27 @@ async function main(options = {}) {
 
   app.post('/api/fs/mkdir', async (req, res) => {
     try {
-      const { path: dirPath } = req.body;
+      const { path: dirPath, allowOutsideWorkspace } = req.body ?? {};
 
-      if (!dirPath) {
+      if (typeof dirPath !== 'string' || !dirPath.trim()) {
         return res.status(400).json({ error: 'Path is required' });
       }
 
-      const resolved = await resolveWorkspacePathFromContext(req, dirPath);
-      if (!resolved.ok) {
-        return res.status(400).json({ error: resolved.error });
+      let resolvedPath = '';
+
+      if (allowOutsideWorkspace) {
+        resolvedPath = path.resolve(normalizeDirectoryPath(dirPath));
+      } else {
+        const resolved = await resolveWorkspacePathFromContext(req, dirPath);
+        if (!resolved.ok) {
+          return res.status(400).json({ error: resolved.error });
+        }
+        resolvedPath = resolved.resolved;
       }
 
-      await fsPromises.mkdir(resolved.resolved, { recursive: true });
+      await fsPromises.mkdir(resolvedPath, { recursive: true });
 
-      res.json({ success: true, path: resolved.resolved });
+      res.json({ success: true, path: resolvedPath });
     } catch (error) {
       console.error('Failed to create directory:', error);
       res.status(500).json({ error: error.message || 'Failed to create directory' });