debug-only extension point

extensions/emmet/package.json

@@ -381,6 +381,12 @@
       }
     ],
     "menus": {
+      "viewContainer/title": [
+        {
+          "command": "workbench.action.chat.newChat",
+          "group": "navigation"
+        }
+      ],
       "commandPalette": [
         {
           "command": "editor.emmet.action.wrapWithAbbreviation",

extensions/r/package.json

@@ -13,6 +13,14 @@
   },
   "categories": ["Programming Languages"],
   "contributes": {
+    "menus": {
+      "viewContainer/title": [
+        {
+          "command": "workbench.action.chat.newChat",
+          "group": "navigation"
+        }
+      ]
+    },
     "languages": [
       {
         "id": "r",

src/vs/workbench/services/actions/common/menusExtensionPoint.ts

@@ -1035,13 +1035,29 @@ menusExtensionPoint.setHandler(extensions => {
 					}
 				}
 
-				item.when = ContextKeyExpr.deserialize(menuItem.when);
+				const when = menu.id === MenuId.ViewContainerTitle ?
+					// ensureDebugViewletOnly(menuItem.when) :
+					menuItem.when :
+					menuItem.when;
+
+				item.when = ContextKeyExpr.deserialize(when);
 				_menuRegistrations.add(MenuRegistry.appendMenuItem(menu.id, item));
 			}
 		}
 	}
 });
 
+function ensureDebugViewletOnly(when: string | undefined): string {
+	if (!when) {
+		return 'viewContainer == workbench.view.debug';
+	}
+
+	// This is not perfect, but just communicates that this is intended for debug viewlet only for now as a proposal
+	return when.includes('viewContainer == workbench.view.debug') ?
+		when :
+		`${when} && viewContainer == workbench.view.debug`;
+}
+
 class CommandsTableRenderer extends Disposable implements IExtensionFeatureTableRenderer {
 
 	readonly type = 'table';