diff --git a/agent_sdks/python/src/a2ui/core/parser/streaming.py b/agent_sdks/python/src/a2ui/core/parser/streaming.py
index 961e81b5a..c0fa376a5 100644
--- a/agent_sdks/python/src/a2ui/core/parser/streaming.py
+++ b/agent_sdks/python/src/a2ui/core/parser/streaming.py
@@ -1232,8 +1232,7 @@ def traverse(obj, parent_key=None):
                       "id": placeholder_id,
                       "component": {
                           "Text": {
-                              "text": {"literalString": f"Loading {child_id}..."},
-                              "usageHint": "caption",
+                              "text": {"literalString": ""},
                           }
                       },
                   }
@@ -1255,8 +1254,7 @@ def traverse(obj, parent_key=None):
                         "id": placeholder_id,
                         "component": {
                             "Text": {
-                                "text": {"literalString": "Loading children..."},
-                                "usageHint": "caption",
+                                "text": {"literalString": ""},
                             }
                         },
                     }
@@ -1272,8 +1270,7 @@ def traverse(obj, parent_key=None):
                     "id": placeholder_id,
                     "component": {
                         "Text": {
-                            "text": {"literalString": f"Loading {child_id}..."},
-                            "usageHint": "caption",
+                            "text": {"literalString": ""},
                         }
                     },
                 }
diff --git a/agent_sdks/python/tests/core/parser/test_streaming_v08.py b/agent_sdks/python/tests/core/parser/test_streaming_v08.py
index daffcb6fb..d7e441386 100644
--- a/agent_sdks/python/tests/core/parser/test_streaming_v08.py
+++ b/agent_sdks/python/tests/core/parser/test_streaming_v08.py
@@ -321,8 +321,7 @@ def test_incremental_yielding_v08(mock_catalog):
                   "id": "loading_children_root-column",
                   "component": {
                       "Text": {
-                          "text": {"literalString": "Loading children..."},
-                          "usageHint": "caption",
+                          "text": {"literalString": ""},
                       }
                   },
               },
@@ -347,8 +346,7 @@ def test_incremental_yielding_v08(mock_catalog):
                   "id": "loading_c1",
                   "component": {
                       "Text": {
-                          "text": {"literalString": "Loading c1..."},
-                          "usageHint": "caption",
+                          "text": {"literalString": ""},
                       }
                   },
               },
@@ -375,8 +373,7 @@ def test_incremental_yielding_v08(mock_catalog):
                   "id": "loading_c1",
                   "component": {
                       "Text": {
-                          "text": {"literalString": "Loading c1..."},
-                          "usageHint": "caption",
+                          "text": {"literalString": ""},
                       }
                   },
               },
@@ -384,8 +381,7 @@ def test_incremental_yielding_v08(mock_catalog):
                   "id": "loading_c2",
                   "component": {
                       "Text": {
-                          "text": {"literalString": "Loading c2..."},
-                          "usageHint": "caption",
+                          "text": {"literalString": ""},
                       }
                   },
               },
@@ -428,8 +424,7 @@ def test_incremental_yielding_v08(mock_catalog):
                   "id": "loading_c2",
                   "component": {
                       "Text": {
-                          "text": {"literalString": "Loading c2..."},
-                          "usageHint": "caption",
+                          "text": {"literalString": ""},
                       }
                   },
               },
@@ -813,8 +808,7 @@ def test_partial_single_child_string(mock_catalog):
                       "id": "loading_c1",
                       "component": {
                           "Text": {
-                              "text": {"literalString": "Loading c1..."},
-                              "usageHint": "caption",
+                              "text": {"literalString": ""},
                           }
                       },
                   },
@@ -886,8 +880,7 @@ def test_partial_template_componentId(mock_catalog):
                       "id": "loading_c1",
                       "component": {
                           "Text": {
-                              "text": {"literalString": "Loading c1..."},
-                              "usageHint": "caption",
+                              "text": {"literalString": ""},
                           }
                       },
                   },
@@ -959,8 +952,7 @@ def test_partial_children_lists(mock_catalog):
                       "id": "loading_c1",
                       "component": {
                           "Text": {
-                              "text": {"literalString": "Loading c1..."},
-                              "usageHint": "caption",
+                              "text": {"literalString": ""},
                           }
                       },
                   },
@@ -968,8 +960,7 @@ def test_partial_children_lists(mock_catalog):
                       "id": "loading_c2",
                       "component": {
                           "Text": {
-                              "text": {"literalString": "Loading c2..."},
-                              "usageHint": "caption",
+                              "text": {"literalString": ""},
                           }
                       },
                   },
@@ -977,8 +968,7 @@ def test_partial_children_lists(mock_catalog):
                       "id": "loading_c3",
                       "component": {
                           "Text": {
-                              "text": {"literalString": "Loading c3..."},
-                              "usageHint": "caption",
+                              "text": {"literalString": ""},
                           }
                       },
                   },
@@ -1015,8 +1005,7 @@ def test_partial_children_lists(mock_catalog):
                       "id": "loading_c2",
                       "component": {
                           "Text": {
-                              "text": {"literalString": "Loading c2..."},
-                              "usageHint": "caption",
+                              "text": {"literalString": ""},
                           }
                       },
                   },
@@ -1024,8 +1013,7 @@ def test_partial_children_lists(mock_catalog):
                       "id": "loading_c3",
                       "component": {
                           "Text": {
-                              "text": {"literalString": "Loading c3..."},
-                              "usageHint": "caption",
+                              "text": {"literalString": ""},
                           }
                       },
                   },
@@ -2075,8 +2063,7 @@ def test_sniff_partial_component_discards_empty_children_dict(mock_catalog):
                   {
                       "component": {
                           "Text": {
-                              "text": {"literalString": "Loading item-list..."},
-                              "usageHint": "caption",
+                              "text": {"literalString": ""},
                           }
                       },
                       "id": "loading_item-list",