diff --git a/.github/workflows/docker-hub-publish.yml b/.github/workflows/docker-hub-publish.yml
index 85b7360..1450134 100644
--- a/.github/workflows/docker-hub-publish.yml
+++ b/.github/workflows/docker-hub-publish.yml
@@ -34,7 +34,7 @@ jobs:
 
       - name: Build the Docker image
 
-        run: docker build . --file Dockerfile -t mobilesecurity/mdast_cli:2026.8.4 -t mobilesecurity/mdast_cli:latest
+        run: docker build . --file Dockerfile -t mobilesecurity/mdast_cli:2026.8.5 -t mobilesecurity/mdast_cli:latest
 
 
       - name: Docker Hub push latest image
@@ -42,6 +42,5 @@ jobs:
 
       - name: Docker Hub push tagged image
 
-        run: docker push mobilesecurity/mdast_cli:2026.8.4
-
+        run: docker push mobilesecurity/mdast_cli:2026.8.5
 
diff --git a/mdast_cli/__init__.py b/mdast_cli/__init__.py
index 9f3ad9c..69cfa87 100644
--- a/mdast_cli/__init__.py
+++ b/mdast_cli/__init__.py
@@ -1 +1 @@
-__version__ = '2026.8.4'
+__version__ = '2026.8.5'
diff --git a/mdast_cli/ms_flow.py b/mdast_cli/ms_flow.py
index b014cb9..9c12cfe 100644
--- a/mdast_cli/ms_flow.py
+++ b/mdast_cli/ms_flow.py
@@ -26,6 +26,7 @@
                                      ENGINE_ACTIVE_STATUS, ScanStage, ScanStageStatus)
 from mdast_cli.helpers.exit_codes import ExitCode
 from mdast_cli.helpers.helpers import check_app_md5, resolve_report_targets
+from mdast_cli_core.factory import architecture_items
 from mdast_cli_core.microservices import extract_error_message, mDastMicroservices
 
 logger = logging.getLogger(__name__)
@@ -78,7 +79,8 @@ def resolve_platform(app_file):
 
 def resolve_ms_os_version(architectures, platform):
     """Choose a deterministic Scanyon OS version for a CLI scan."""
-    if not isinstance(architectures, list):
+    architectures = architecture_items(architectures)
+    if architectures is None:
         return None
 
     candidates = [
@@ -314,7 +316,12 @@ def _run_microservices_flow(arguments, url, token, app_file, user_agent, verify)
     architectures_resp = mdast.get_architectures()
     if architectures_resp.status_code != 200:
         _exit_on_http_error(architectures_resp, 'Getting architectures', ExitCode.NETWORK_ERROR)
-    architectures = _json_or_exit(architectures_resp, 'Getting architectures')
+    architectures_payload = _json_or_exit(architectures_resp, 'Getting architectures')
+    architectures = architecture_items(architectures_payload)
+    if architectures is None:
+        logger.error('Getting architectures: unexpected response shape '
+                     '(expected a list or paginated items envelope)')
+        sys.exit(ExitCode.NETWORK_ERROR)
     logger.info(f'Supported architectures: {architectures}')
 
     platform = resolve_platform(app_file)
diff --git a/mdast_cli_core/factory.py b/mdast_cli_core/factory.py
index 2a12297..accd46d 100644
--- a/mdast_cli_core/factory.py
+++ b/mdast_cli_core/factory.py
@@ -9,8 +9,9 @@
 2. Auto-detection by *content fingerprint*, not just an HTTP 200. Both
    installations expose ``GET {base}/architectures/`` under ``/rest``, but the
    payloads differ structurally:
-     - microservices (scanyon-native): ``type`` is a string ``ANDROID``/``IOS``
-       and each item carries ``os_version``;
+     - microservices (scanyon-native): a list or paginated ``items`` envelope;
+       ``type`` is a string ``ANDROID``/``IOS`` and each item carries
+       ``os_version``;
      - monolith: ``type`` is an integer code (1/2) and there is no ``os_version``.
    Auth scheme also differs (microservices = ``Bearer``, monolith = ``Token``),
    so each probe uses its own scheme. A monolith that happens to answer 200 to a
@@ -66,11 +67,27 @@ def tls_verify_enabled():
     return raw not in ('0', 'false', 'no', 'off')
 
 
+def architecture_items(payload):
+    """Return architecture rows from legacy list or Scanyon Page envelope.
+
+    STG-4892 paginated ``GET /architectures/`` as
+    ``{items, total, page, size, pages}``. Older Scanyon versions and the
+    monolith still return a bare list, so the CLI must accept both shapes.
+    ``None`` distinguishes a malformed payload from a valid empty catalogue.
+    """
+    if isinstance(payload, list):
+        return payload
+    if isinstance(payload, dict) and isinstance(payload.get('items'), list):
+        return payload['items']
+    return None
+
+
 def _looks_microservices(payload):
     """True if an /architectures/ payload is scanyon-native (microservices)."""
-    if not isinstance(payload, list) or not payload:
+    items = architecture_items(payload)
+    if not items:
         return False
-    item = payload[0]
+    item = items[0]
     if not isinstance(item, dict):
         return False
     # scanyon-native: type is a string ANDROID/IOS and os_version is present
@@ -80,9 +97,10 @@ def _looks_microservices(payload):
 
 def _looks_monolith(payload):
     """True if an /architectures/ payload is monolith-shaped (int type code)."""
-    if not isinstance(payload, list) or not payload:
+    items = architecture_items(payload)
+    if not items:
         return False
-    item = payload[0]
+    item = items[0]
     return isinstance(item, dict) and isinstance(item.get('type'), int)
 
 
@@ -242,7 +260,10 @@ def resolve_installation_mode(base_url, ci_token, company_id, mode=None, verify=
 
     # Ambiguous 200 (payload matched neither shape) — do not guess.
     if ms.status == 200 or mono.status == 200:
-        empty_list = ms.payload == [] or mono.payload == []
+        empty_list = (
+            architecture_items(ms.payload) == [] or
+            architecture_items(mono.payload) == []
+        )
         hint = ('The /architectures/ list is empty, so the installation flavour cannot be '
                 'inferred from it. ' if empty_list else
                 'The payload matched neither the microservices (string type + os_version) '
diff --git a/setup.py b/setup.py
index bb606b7..546a936 100644
--- a/setup.py
+++ b/setup.py
@@ -6,7 +6,7 @@
 setup(
     name="mdast_cli",
 
-    version='2026.8.4',
+    version='2026.8.5',
 
     python_requires='>=3.12',
 
diff --git a/tests/test_mode_detection.py b/tests/test_mode_detection.py
index 536d779..bcde827 100644
--- a/tests/test_mode_detection.py
+++ b/tests/test_mode_detection.py
@@ -15,6 +15,7 @@
 
 ARCH_URL = f'{REST_URL}/architectures/'
 MS_ARCH = [{'id': 1, 'type': 'ANDROID', 'os_version': '11', 'name': 'Android 11'}]
+MS_ARCH_PAGE = {'items': MS_ARCH, 'total': 1, 'page': 1, 'size': 50, 'pages': 1}
 MONO_ARCH = [{'id': 1, 'type': 1, 'name': 'Android 11'}]
 
 
@@ -41,6 +42,13 @@ def test_autodetect_microservices_by_payload(mocked_responses, monkeypatch):
     assert mocked_responses.calls[0].request.headers['Authorization'] == f'Bearer {TOKEN}'
 
 
+def test_autodetect_microservices_by_paginated_payload(mocked_responses, monkeypatch):
+    """STG-4892 wraps the Clark/Scanyon catalogue in a Page envelope."""
+    monkeypatch.delenv('MDAST_CLI_MODE', raising=False)
+    mocked_responses.add(responses.GET, ARCH_URL, json=MS_ARCH_PAGE)
+    assert resolve_installation_mode(REST_URL, TOKEN, None) == MODE_MICROSERVICES
+
+
 def test_autodetect_monolith_by_payload(mocked_responses, monkeypatch):
     monkeypatch.delenv('MDAST_CLI_MODE', raising=False)
     # Bearer probe -> monolith answers 401 (Token-only), then Token probe -> int type
diff --git a/tests/test_ms_architecture.py b/tests/test_ms_architecture.py
index acb6dfa..7e38a80 100644
--- a/tests/test_ms_architecture.py
+++ b/tests/test_ms_architecture.py
@@ -26,6 +26,21 @@ def test_falls_back_to_first_platform_version():
     assert resolve_ms_os_version(architectures, OS_IOS) == '16'
 
 
+def test_selects_version_from_paginated_scanyon_catalogue():
+    architectures = {
+        'items': [
+            {'type': 'ANDROID', 'os_version': '14', 'name': 'Android 14'},
+            {'type': 'ANDROID', 'os_version': '11', 'name': 'Android 11'},
+        ],
+        'total': 2,
+        'page': 1,
+        'size': 50,
+        'pages': 1,
+    }
+
+    assert resolve_ms_os_version(architectures, OS_ANDROID) == '11'
+
+
 @pytest.mark.parametrize('architectures', [None, {}, [], [{'type': 'ANDROID', 'os_version': ''}]])
 def test_missing_platform_version_returns_none(architectures):
     assert resolve_ms_os_version(architectures, OS_ANDROID) is None
diff --git a/tests/test_smoke_flows.py b/tests/test_smoke_flows.py
index 20f4785..d978f79 100644
--- a/tests/test_smoke_flows.py
+++ b/tests/test_smoke_flows.py
@@ -16,10 +16,15 @@
 pytestmark = pytest.mark.smoke
 
 
-def register_ms_happy_path(rsps, apk_md5, with_testcase=True):
-    rsps.add(responses.GET, f'{REST_URL}/architectures/', json=[
+def register_ms_happy_path(rsps, apk_md5, with_testcase=True, paginated_architectures=False):
+    architectures = [
         {'id': 1, 'type': 'ANDROID', 'os_version': '11', 'name': 'Android 11', 'description': 'API 30'},
-    ])
+    ]
+    if paginated_architectures:
+        architectures = {
+            'items': architectures, 'total': 1, 'page': 1, 'size': 50, 'pages': 1,
+        }
+    rsps.add(responses.GET, f'{REST_URL}/architectures/', json=architectures)
     if with_testcase:
         rsps.add(responses.GET, f'{REST_URL}/testcases/5/', json={'id': 5, 'os': 'ANDROID'})
     rsps.add(responses.GET, f'{REST_URL}/engines/', json=[
@@ -102,6 +107,21 @@ def test_ms_full_flow_with_autodetect(mocked_responses, monkeypatch, tmp_path, t
     assert exit_code == 0
 
 
+def test_ms_full_flow_with_paginated_architectures(mocked_responses, monkeypatch, tmp_path,
+                                                   tmp_apk, apk_md5, no_sleep):
+    """STG-4892 Page envelope must work through detect, OS selection and create."""
+    monkeypatch.delenv('MDAST_CLI_MODE', raising=False)
+    monkeypatch.chdir(tmp_path)
+    register_ms_happy_path(mocked_responses, apk_md5, paginated_architectures=True)
+    exit_code = run_main(monkeypatch, ms_argv(tmp_apk, include_company_id=False))
+    assert exit_code == 0
+    create_calls = [
+        call for call in mocked_responses.calls
+        if call.request.url == f'{REST_URL}/scans/start/'
+    ]
+    assert json.loads(create_calls[0].request.body)['os_version'] == '11'
+
+
 def test_ms_manual_flow_stops_scan(mocked_responses, monkeypatch, tmp_path, tmp_apk, apk_md5,
                                    no_sleep, ms_mode):
     """Scan without a test case keeps the manual semantics: wait, stop, expect SUCCESS."""