diff --git a/.claude/skills/skd-validate/scripts/skd-validate.ps1 b/.claude/skills/skd-validate/scripts/skd-validate.ps1
index ead1a77e..6f8eb918 100644
--- a/.claude/skills/skd-validate/scripts/skd-validate.ps1
+++ b/.claude/skills/skd-validate/scripts/skd-validate.ps1
@@ -655,10 +655,8 @@ function Check-StructureItem {
 	if ($script:stopped) { return }
 
 	$xsiType = $itemNode.GetAttribute("type", "http://www.w3.org/2001/XMLSchema-instance")
-	if (-not $xsiType) {
-		Report-Error "Variant '$variantName': structure item missing xsi:type"
-		return
-	}
+	# StructureItemGroup — дефолтный тип, platform эмитит <dcsset:item> без xsi:type.
+	if (-not $xsiType) { $xsiType = 'dcsset:StructureItemGroup' }
 	if ($validStructureTypes -notcontains $xsiType) {
 		Report-Warn "Variant '$variantName': unusual structure item type '$xsiType'"
 	}
diff --git a/.claude/skills/skd-validate/scripts/skd-validate.py b/.claude/skills/skd-validate/scripts/skd-validate.py
index fc0555ca..e5935bec 100644
--- a/.claude/skills/skd-validate/scripts/skd-validate.py
+++ b/.claude/skills/skd-validate/scripts/skd-validate.py
@@ -622,9 +622,9 @@ def check_structure_item(item_node, variant_name):
         return
 
     xsi_type = item_node.get(XSI_TYPE, "")
+    # StructureItemGroup — дефолтный тип, platform эмитит <dcsset:item> без xsi:type.
     if not xsi_type:
-        report_error(f"Variant '{variant_name}': structure item missing xsi:type")
-        return
+        xsi_type = "dcsset:StructureItemGroup"
     if xsi_type not in valid_structure_types:
         report_warn(f"Variant '{variant_name}': unusual structure item type '{xsi_type}'")