diff --git a/ms_agent/llm/utils.py b/ms_agent/llm/utils.py
index 71bf745ad..6a336ca6e 100644
--- a/ms_agent/llm/utils.py
+++ b/ms_agent/llm/utils.py
@@ -47,8 +47,8 @@ class Message:
     partial: bool = False
     prefix: bool = False
 
-    # code block
-    resources: List[str] = field(default_factory=list)
+    # UI resources from mcp result
+    resources: List[Dict[str, str]] = field(default_factory=list)
 
     # usage
     completion_tokens: int = 0
diff --git a/ms_agent/tools/mcp_client.py b/ms_agent/tools/mcp_client.py
index b868c7f7d..d6b971fbb 100644
--- a/ms_agent/tools/mcp_client.py
+++ b/ms_agent/tools/mcp_client.py
@@ -79,8 +79,10 @@ async def call_tool(self, server_name: str, tool_name: str,
             if content.type == 'text':
                 texts.append(content.text)
             elif content.type == 'resource':
-                texts.append(str(content.resource))
-                resources.append(str(content.resource))
+                import json5
+                json_str = content.resource.model_dump_json(by_alias=True)
+                texts.append(json_str)
+                resources.append(json5.loads(json_str))
 
         if resources:
             return {'text': '\n\n'.join(texts), 'resources': resources}