diff --git a/packages/jupyter-chat/package.json b/packages/jupyter-chat/package.json
index 2723b9c9..81d42276 100644
--- a/packages/jupyter-chat/package.json
+++ b/packages/jupyter-chat/package.json
@@ -51,6 +51,7 @@
     "@jupyterlab/codeeditor": "^4.2.0",
     "@jupyterlab/codemirror": "^4.2.0",
     "@jupyterlab/docmanager": "^4.2.0",
+    "@jupyterlab/docregistry": "^4.2.0",
     "@jupyterlab/filebrowser": "^4.2.0",
     "@jupyterlab/fileeditor": "^4.2.0",
     "@jupyterlab/notebook": "^4.2.0",
@@ -62,6 +63,7 @@
     "@lumino/disposable": "^2.0.0",
     "@lumino/polling": "^2.0.0",
     "@lumino/signaling": "^2.0.0",
+    "@lumino/widgets": "^2.0.0",
     "@mui/icons-material": "^7.3.2",
     "@mui/material": "^7.3.2",
     "clsx": "^2.1.0",
diff --git a/packages/jupyter-chat/src/widgets/chat-widget.tsx b/packages/jupyter-chat/src/widgets/chat-widget.tsx
index 0ea49239..4643fd3b 100644
--- a/packages/jupyter-chat/src/widgets/chat-widget.tsx
+++ b/packages/jupyter-chat/src/widgets/chat-widget.tsx
@@ -6,10 +6,12 @@
 import { ReactWidget } from '@jupyterlab/apputils';
 import { Cell } from '@jupyterlab/cells';
 import { DirListing } from '@jupyterlab/filebrowser';
+import { DocumentWidget } from '@jupyterlab/docregistry';
 import { ICell, isCode, isMarkdown, isRaw } from '@jupyterlab/nbformat';
 import React from 'react';
 import { Message } from '@lumino/messaging';
 import { Drag } from '@lumino/dragdrop';
+import { Widget } from '@lumino/widgets';
 
 import { Chat, IInputToolbarRegistry, MESSAGE_CLASS } from '../components';
 import { chatIcon } from '../icons';
@@ -28,6 +30,9 @@ const FILE_BROWSER_MIME = 'application/x-jupyter-icontentsrich';
 // MIME type constant for Notebook cell drag events
 const NOTEBOOK_CELL_MIME = 'application/vnd.jupyter.cells';
 
+// MIME type constant for TabBar file drag events
+const TABBAR_FILE_MIME = 'application/vnd.lumino.widget-factory';
+
 // CSS class constants
 const INPUT_CONTAINER_CLASS = 'jp-chat-input-container';
 const DRAG_HOVER_CLASS = 'jp-chat-drag-hover';
@@ -179,7 +184,9 @@ export class ChatWidget extends ReactWidget {
   private _canHandleDrop(event: Drag.Event): boolean {
     const types = event.mimeData.types();
     return (
-      types.includes(NOTEBOOK_CELL_MIME) || types.includes(FILE_BROWSER_MIME)
+      types.includes(NOTEBOOK_CELL_MIME) ||
+      types.includes(FILE_BROWSER_MIME) ||
+      types.includes(TABBAR_FILE_MIME)
     );
   }
 
@@ -202,6 +209,8 @@ export class ChatWidget extends ReactWidget {
         this._processCellDrop(event);
       } else if (event.mimeData.hasData(FILE_BROWSER_MIME)) {
         this._processFileDrop(event);
+      } else if (event.mimeData.hasData(TABBAR_FILE_MIME)) {
+        this._processTabDrop(event);
       }
     } catch (error) {
       console.error('Error processing drop:', error);
@@ -321,6 +330,40 @@ export class ChatWidget extends ReactWidget {
     }
   }
 
+  /**
+   * Process dropped tabBar files
+   */
+  private _processTabDrop(event: Drag.Event) {
+    const factory = event.mimeData.getData(TABBAR_FILE_MIME) as () => Widget;
+    if (!factory) {
+      console.warn('No factory in drag event');
+      return;
+    }
+
+    const widget = factory();
+    if (!widget || !(widget instanceof DocumentWidget)) {
+      console.warn('No file associated to the element');
+      return;
+    }
+
+    const path = widget.context.path;
+    if (!path) {
+      console.warn('Widget has no path');
+      return;
+    }
+
+    const mimetype =
+      widget.context.model?.mimeType || 'application/octet-stream';
+    const attachment: IFileAttachment = {
+      type: 'file',
+      value: path,
+      mimetype
+    };
+
+    const inputModel = this._getInputFromEvent(event);
+    inputModel?.addAttachment?.(attachment);
+  }
+
   /**
    * Find the notebook path for a cell by searching through active and open notebooks
    */
diff --git a/yarn.lock b/yarn.lock
index 90985dfa..b6676615 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2309,6 +2309,7 @@ __metadata:
     "@jupyterlab/codeeditor": ^4.2.0
     "@jupyterlab/codemirror": ^4.2.0
     "@jupyterlab/docmanager": ^4.2.0
+    "@jupyterlab/docregistry": ^4.2.0
     "@jupyterlab/filebrowser": ^4.2.0
     "@jupyterlab/fileeditor": ^4.2.0
     "@jupyterlab/notebook": ^4.2.0
@@ -2321,6 +2322,7 @@ __metadata:
     "@lumino/disposable": ^2.0.0
     "@lumino/polling": ^2.0.0
     "@lumino/signaling": ^2.0.0
+    "@lumino/widgets": ^2.0.0
     "@mui/icons-material": ^7.3.2
     "@mui/material": ^7.3.2
     "@types/jest": ^29.2.0