expose shell metadata in call responses

tests/test_app.py

@@ -73,6 +73,20 @@ class AppTests(unittest.TestCase):
         self.assertNotEqual(first.call_id, second.call_id)
         self.assertEqual(second.result.result, 42)
 
+    def test_response_and_shell_list_expose_shell_info(self):
+        app = App()
+
+        with contextlib.redirect_stdout(io.StringIO()):
+            call = app.run_code("1 + 1", shell_name="new")
+
+        shells = app.list_shells()
+
+        self.assertEqual(len(shells), 1)
+        self.assertEqual(call.shell.shell_id, shells[0].shell_id)
+        self.assertEqual(call.shell.name, call.shell_name)
+        self.assertEqual(call.shell.execution_count, call.result.execution_count)
+        self.assertIn("execute_result", call.shell.capabilities)
+
 
 if __name__ == "__main__":
     unittest.main()