diff --git a/staging/ext-image-capture-source/ext-image-capture-source-v1.xml b/staging/ext-image-capture-source/ext-image-capture-source-v1.xml
index b31a5da..393ed1f 100644
--- a/staging/ext-image-capture-source/ext-image-capture-source-v1.xml
+++ b/staging/ext-image-capture-source/ext-image-capture-source-v1.xml
@@ -106,4 +106,40 @@
       </description>
     </request>
   </interface>
+
+  <interface name="ext_workspace_image_capture_source_manager_v1" version="1">
+    <description summary="image capture source manager for workspaces">
+      A manager for creating image capture source objects for workspace handles.
+      This allows clients to capture the entire content of a workspace, including
+      all windows and desktop elements within that workspace.
+    </description>
+
+    <request name="create_source">
+      <description summary="create source object for workspace">
+        Creates a source object for a workspace handle. Images captured from
+        this source will show the content of the workspace as determined by
+        the compositor. This may include windows, and other elements visible
+        in that workspace. Some elements may be omitted, such as cursors and
+        overlays that have been marked as transparent to capturing.
+
+        The exact content included in the capture is compositor policy.
+        Compositors may choose to include or exclude specific elements such
+        as panels, docks, desktop background, or other UI components.
+
+        The captured content represents the workspace as it would appear if
+        it were the currently active workspace, regardless of whether it is
+        actually visible to the user at the time of capture.
+      </description>
+      <arg name="source" type="new_id" interface="ext_image_capture_source_v1"/>
+      <arg name="workspace_handle" type="object" interface="ext_workspace_handle_v1"/>
+    </request>
+
+    <request name="destroy" type="destructor">
+      <description summary="delete this object">
+        Destroys the manager. This request may be sent at any time by the client
+        and objects created by the manager will remain valid after its
+        destruction.
+      </description>
+    </request>
+  </interface>
 </protocol>