diff --git a/navi/tools/filesystem.py b/navi/tools/filesystem.py
index 9c8470f..36f2949 100644
--- a/navi/tools/filesystem.py
+++ b/navi/tools/filesystem.py
@@ -231,7 +231,7 @@
                 "type": "string",
                 "enum": [
                     "read", "write", "append", "list", "find", "find_up",
-                    "info", "move", "delete", "exists",
+                    "info", "move", "delete", "exists", "mkdir",
                     "query", "smart_edit",
                 ],
                 "description": "Operation to perform.",
@@ -321,6 +321,7 @@
                 case "move":      return await asyncio.to_thread(self._move, path, params)
                 case "delete":    return await asyncio.to_thread(self._delete, path)
                 case "exists":    return ToolResult(success=True, output="true" if path.exists() else "false")
+                case "mkdir":     return await asyncio.to_thread(self._mkdir, path)
                 case "query":     return await self._query(path, params)
                 case "smart_edit": return await self._smart_edit(path, params)
                 case _:
@@ -514,6 +515,10 @@
         shutil.move(str(path), str(dest))
         return ToolResult(success=True, output=f"Moved: {path} → {dest}")
 
+    def _mkdir(self, path: Path) -> ToolResult:
+        path.mkdir(parents=True, exist_ok=True)
+        return ToolResult(success=True, output=f"Directory ready: {path}")
+
     def _delete(self, path: Path) -> ToolResult:
         if not path.exists():
             return ToolResult(success=False, output=f"Not found: {path}", error="not_found")