diff --git a/MCPForUnity/Editor/Tools/ManageScript.cs b/MCPForUnity/Editor/Tools/ManageScript.cs
index 3745ec7..03da19d 100644
--- a/MCPForUnity/Editor/Tools/ManageScript.cs
+++ b/MCPForUnity/Editor/Tools/ManageScript.cs
@@ -65,7 +65,17 @@ namespace MCPForUnity.Editor.Tools
             // Normalize caller path: allow both "Scripts/..." and "Assets/Scripts/..."
             string rel = (relDir ?? "Scripts").Replace('\\', '/').Trim();
             if (string.IsNullOrEmpty(rel)) rel = "Scripts";
-            if (rel.StartsWith("Assets/", StringComparison.OrdinalIgnoreCase)) rel = rel.Substring(7);
+
+            // Handle both "Assets" and "Assets/" prefixes
+            if (rel.Equals("Assets", StringComparison.OrdinalIgnoreCase))
+            {
+                rel = string.Empty;
+            }
+            else if (rel.StartsWith("Assets/", StringComparison.OrdinalIgnoreCase))
+            {
+                rel = rel.Substring(7);
+            }
+
             rel = rel.TrimStart('/');
 
             string targetDir = Path.Combine(assets, rel).Replace('\\', '/');
diff --git a/Server/src/services/tools/manage_asset.py b/Server/src/services/tools/manage_asset.py
index c9c4b5a..e7264ea 100644
--- a/Server/src/services/tools/manage_asset.py
+++ b/Server/src/services/tools/manage_asset.py
@@ -80,7 +80,7 @@ async def manage_asset(
 
     properties, parse_error = await _normalize_properties(properties)
     if parse_error:
-        await ctx.warn(parse_error)
+        await ctx.error(parse_error)
         return {"success": False, "message": parse_error}
 
     # Coerce numeric inputs defensively