diff --git a/services/api-server/src/api_server/html5.py b/services/api-server/src/api_server/html5.py
index 8307c25..54daba1 100644
--- a/services/api-server/src/api_server/html5.py
+++ b/services/api-server/src/api_server/html5.py
@@ -515,7 +515,7 @@ def render_html5_object_context(
         <strong>{escape(str(name))}</strong>
         <span>{escape(str(getattr(obj, "kind", "object")))}</span>
       </article>
-      {_object_action_links(project_id, str(name), getattr(obj, "lineage_id", ""), modules)}
+      {_object_action_links(project_id, str(name), getattr(obj, "lineage_id", ""), modules, normalized_mode)}
       <dl class="report-grid">
         {_metric("Attrs", len(attributes))}
         {_metric("Tables", len(sections))}
@@ -1541,7 +1541,13 @@ def _named_node_item(label: str, node: object) -> str:
     """
 
 
-def _object_action_links(project_id: str, object_name: str, lineage_id: object, modules: Iterable[object]) -> str:
+def _object_action_links(
+    project_id: str,
+    object_name: str,
+    lineage_id: object,
+    modules: Iterable[object],
+    active_mode: str,
+) -> str:
     quoted_project = quote(project_id)
     quoted_object = quote(object_name, safe="")
     lineage = str(lineage_id or "")
@@ -1565,6 +1571,9 @@ def _object_action_links(project_id: str, object_name: str, lineage_id: object,
         if lineage
         else ""
     )
+    def active_attrs(mode: str) -> str:
+        return ' aria-current="page" data-html5-object-action-active="true"' if mode == active_mode else ""
+
     return f"""
     <nav class="object-actions" data-html5-object-actions>
       <a
@@ -1573,6 +1582,7 @@ def _object_action_links(project_id: str, object_name: str, lineage_id: object,
         hx-get="/html5/projects/{quoted_project}/objects/context/{quoted_object}"
         hx-target="[data-html5-object-context]"
         hx-swap="outerHTML"
+        {active_attrs("overview")}
       >Overview</a>
       <a
         class="button"
@@ -1580,6 +1590,7 @@ def _object_action_links(project_id: str, object_name: str, lineage_id: object,
         hx-get="/html5/projects/{quoted_project}/objects/context/{quoted_object}?mode=schema"
         hx-target="[data-html5-object-context]"
         hx-swap="outerHTML"
+        {active_attrs("schema")}
       >Schema</a>
       <a
         class="button"
@@ -1587,6 +1598,7 @@ def _object_action_links(project_id: str, object_name: str, lineage_id: object,
         hx-get="/html5/projects/{quoted_project}/objects/context/{quoted_object}?mode=impact"
         hx-target="[data-html5-object-context]"
         hx-swap="outerHTML"
+        {active_attrs("impact")}
       >Impact</a>
       <a
         class="button"
@@ -1594,6 +1606,7 @@ def _object_action_links(project_id: str, object_name: str, lineage_id: object,
         hx-get="/html5/projects/{quoted_project}/objects/context/{quoted_object}?mode=privacy"
         hx-target="[data-html5-object-context]"
         hx-swap="outerHTML"
+        {active_attrs("privacy")}
       >Privacy</a>
       <a
         class="button"
diff --git a/services/api-server/tests/test_api.py b/services/api-server/tests/test_api.py
index 446c079..ebb68a3 100644
--- a/services/api-server/tests/test_api.py
+++ b/services/api-server/tests/test_api.py
@@ -324,6 +324,8 @@ def test_html5_object_context_fragment(tmp_path: Path):
     assert "mode=privacy" in context.text
     assert 'data-html5-object-mode="overview"' in context.text
     assert "Object context · overview" in context.text
+    assert 'data-html5-object-action-active="true"' in context.text
+    assert 'aria-current="page"' in context.text
     assert 'hx-target="[data-html5-object-context]"' in context.text
     assert 'hx-target="[data-html5-flowchart]"' in context.text
     assert 'hx-target="[data-html5-source]"' in context.text
@@ -371,6 +373,7 @@ def test_html5_object_context_fragment(tmp_path: Path):
     assert schema_context.status_code == 200
     assert 'data-html5-object-mode="schema"' in schema_context.text
     assert "Object context · schema" in schema_context.text
+    assert 'data-html5-object-action-active="true"' in schema_context.text
     assert "Контрагент" in schema_context.text
 
     impact_context = client.get(