diff --git a/tools/checks/check-shared-webui-layouts.py b/tools/checks/check-shared-webui-layouts.py
index bc89588..459a4bb 100644
--- a/tools/checks/check-shared-webui-layouts.py
+++ b/tools/checks/check-shared-webui-layouts.py
@@ -16,6 +16,10 @@ WORKSPACE_BASELINE_PATH = pathlib.Path(__file__).with_name(
 )
 RAW_PAGE_FRAME = 'className="content-pad workspace-data-page'
 RAW_WORKSPACE = re.compile(r'<div\s+className="workspace(?:\s|\")')
+PAGE_LAYOUT_USAGE = re.compile(r"<PageLayout\b")
+SEMANTIC_PAGE_LAYOUT_USAGE = re.compile(
+    r"<PageLayout\s+(?:\n\s*)?archetype="
+)
 LOCAL_PAGE_LAYOUT = re.compile(r"\b(?:function|class|const)\s+PageLayout\b")
 LOCAL_WORKSPACE_LAYOUT = re.compile(
     r"\b(?:function|class|const)\s+WorkspaceLayout\b"
@@ -61,6 +65,23 @@ REQUIRED_WORKSPACE_CONSUMERS = (
     pathlib.Path("govoplan-docs/webui/src/features/docs/DocsPage.tsx"),
     pathlib.Path("govoplan-organizations/webui/src/features/organizations/OrganizationsPage.tsx"),
 )
+HEADERLESS_PAGE_LAYOUT_CONSUMERS = {
+    pathlib.Path("govoplan-access/webui/src/features/admin/AdminPage.tsx"),
+}
+EDITOR_PAGE_CONSUMERS = (
+    pathlib.Path("govoplan-core/webui/src/features/settings/SettingsPage.tsx"),
+    pathlib.Path("govoplan-dashboard/webui/src/features/dashboard/DashboardPage.tsx"),
+    pathlib.Path("govoplan-campaign/webui/src/features/campaigns/AttachmentsDataPage.tsx"),
+    pathlib.Path("govoplan-campaign/webui/src/features/campaigns/CampaignFieldsPage.tsx"),
+    pathlib.Path("govoplan-campaign/webui/src/features/campaigns/CampaignOverviewPage.tsx"),
+    pathlib.Path("govoplan-campaign/webui/src/features/campaigns/GlobalSettingsPage.tsx"),
+    pathlib.Path("govoplan-campaign/webui/src/features/campaigns/MailSettingsPage.tsx"),
+    pathlib.Path("govoplan-campaign/webui/src/features/campaigns/TemplateDataPage.tsx"),
+    pathlib.Path("govoplan-campaign/webui/src/features/campaigns/components/CampaignDraftPageScaffold.tsx"),
+)
+DESTRUCTIVE_PAGE_CONSUMERS = (
+    pathlib.Path("govoplan-campaign/webui/src/features/campaigns/CampaignOverviewPage.tsx"),
+)
 
 
 def baseline_paths(path: pathlib.Path) -> set[pathlib.Path]:
@@ -129,6 +150,28 @@ def main() -> int:
         if path != CENTRAL_WORKSPACE_LAYOUT and LOCAL_WORKSPACE_LAYOUT.search(text):
             errors.append(f"Module-local WorkspaceLayout definition is not allowed: {path}")
 
+        page_layout_count = len(PAGE_LAYOUT_USAGE.findall(text))
+        semantic_layout_count = len(SEMANTIC_PAGE_LAYOUT_USAGE.findall(text))
+        if page_layout_count and semantic_layout_count != page_layout_count:
+            errors.append(
+                "Every PageLayout must declare its semantic archetype immediately "
+                f"after the component name: {path} ({semantic_layout_count}/{page_layout_count})"
+            )
+        if (
+            page_layout_count
+            and "actions=" in text
+            and path not in HEADERLESS_PAGE_LAYOUT_CONSUMERS
+            and path != pathlib.Path("govoplan-core/webui/src/components/admin/AdminPageLayout.tsx")
+            and "<PageActionBar" not in text
+        ):
+            errors.append(
+                f"Headed page actions must use the semantic PageActionBar: {path}"
+            )
+        if "<PageActionBar" in text and "consequentialActions=" in text:
+            errors.append(
+                f"Ambiguous consequential action slots are forbidden; use destructiveActions: {path}"
+            )
+
     for path in REQUIRED_CONSUMERS:
         absolute_path = REPOS_ROOT / path
         if not absolute_path.exists():
@@ -149,11 +192,39 @@ def main() -> int:
         if RAW_WORKSPACE.search(text):
             errors.append(f"Required shared-workspace consumer restored the raw workspace: {path}")
 
+    for path in EDITOR_PAGE_CONSUMERS:
+        absolute_path = REPOS_ROOT / path
+        if not absolute_path.exists():
+            continue
+        text = absolute_path.read_text(encoding="utf-8")
+        for required in ('variant="editor"', "dirty=", "discardAction=", "saveAction="):
+            if required not in text:
+                errors.append(f"Editor page is missing {required}: {path}")
+        if path.name != "CampaignDraftPageScaffold.tsx" and not any(
+            guard in text
+            for guard in (
+                "useUnsavedDraftGuard",
+                "useCampaignDraftEditor",
+                "useRegisterUnsavedChanges",
+            )
+        ):
+            errors.append(f"Editor page is missing an unsaved-change guard: {path}")
+
+    for path in DESTRUCTIVE_PAGE_CONSUMERS:
+        absolute_path = REPOS_ROOT / path
+        if not absolute_path.exists():
+            continue
+        text = absolute_path.read_text(encoding="utf-8")
+        if "destructiveActions=" not in text or 'variant="danger"' not in text:
+            errors.append(f"Destructive page actions lost their separated slot: {path}")
+
     core_index = REPOS_ROOT / "govoplan-core/webui/src/index.ts"
     if core_index.exists() and "PageLayout, PageHeader" not in core_index.read_text(encoding="utf-8"):
         errors.append("Core must export PageLayout and PageHeader from @govoplan/core-webui.")
     if core_index.exists() and "WorkspaceLayout" not in core_index.read_text(encoding="utf-8"):
         errors.append("Core must export WorkspaceLayout from @govoplan/core-webui.")
+    if core_index.exists() and "PageActionBar" not in core_index.read_text(encoding="utf-8"):
+        errors.append("Core must export PageActionBar from @govoplan/core-webui.")
 
     if errors:
         print("\n".join(errors), file=sys.stderr)
@@ -162,6 +233,8 @@ def main() -> int:
     print(
         "Shared WebUI layout contract passed: "
         f"{len(REQUIRED_CONSUMERS)} central consumers, "
+        f"{sum(len(PAGE_LAYOUT_USAGE.findall(text)) for text in source_text.values())} semantic pages, "
+        f"{len(EDITOR_PAGE_CONSUMERS)} guarded editor consumers, "
         f"{len(raw_frames)} registered legacy page-frame files; "
         f"{len(REQUIRED_WORKSPACE_CONSUMERS)} workspace consumers, "
         f"{len(raw_workspaces)} registered legacy workspace files."