diff --git a/metagpt/actions/write_analysis_code.py b/metagpt/actions/write_analysis_code.py
index efd1ea163..65be198ef 100644
--- a/metagpt/actions/write_analysis_code.py
+++ b/metagpt/actions/write_analysis_code.py
@@ -110,7 +110,7 @@ class WriteCodeWithTools(BaseWriteAnalysisCode):
             if TOOL_REGISTRY.has_tool(tool_name):
                 valid_tools.append(TOOL_REGISTRY.get_tool(tool_name))
 
-        tool_catalog = {tool.name: tool.schema for tool in valid_tools}
+        tool_catalog = {tool.name: tool.schemas for tool in valid_tools}
         return tool_catalog
 
     async def _tool_recommendation(
@@ -158,7 +158,7 @@ class WriteCodeWithTools(BaseWriteAnalysisCode):
         tool_catalog = {}
 
         if available_tools:
-            available_tools = {tool_name: tool.schema["description"] for tool_name, tool in available_tools.items()}
+            available_tools = {tool_name: tool.schemas["description"] for tool_name, tool in available_tools.items()}
 
             recommend_tools = await self._tool_recommendation(
                 plan.current_task.instruction, code_steps, available_tools
@@ -199,7 +199,7 @@ class WriteCodeWithToolsML(WriteCodeWithTools):
         code_context = "\n\n".join(code_context)
 
         if available_tools:
-            available_tools = {tool_name: tool.schema["description"] for tool_name, tool in available_tools.items()}
+            available_tools = {tool_name: tool.schemas["description"] for tool_name, tool in available_tools.items()}
 
             recommend_tools = await self._tool_recommendation(
                 plan.current_task.instruction, code_steps, available_tools
diff --git a/metagpt/tools/tool_data_type.py b/metagpt/tools/tool_data_type.py
index a3ab20a4e..8206afa59 100644
--- a/metagpt/tools/tool_data_type.py
+++ b/metagpt/tools/tool_data_type.py
@@ -29,5 +29,5 @@ class ToolSchema(BaseModel):
 class Tool(BaseModel):
     name: str
     path: str
-    schema: dict = {}
+    schemas: dict = {}
     code: str = ""
diff --git a/metagpt/tools/tool_registry.py b/metagpt/tools/tool_registry.py
index 2c59cd198..5d743358c 100644
--- a/metagpt/tools/tool_registry.py
+++ b/metagpt/tools/tool_registry.py
@@ -25,7 +25,7 @@ class ToolRegistry:
 
     def register_tool_type(self, tool_type: ToolType):
         self.tool_types[tool_type.name] = tool_type
-        logger.info(f"{tool_type.name} registered")
+        logger.info(f"tool type {tool_type.name} registered")
 
     def register_tool(
         self,
@@ -51,16 +51,16 @@ class ToolRegistry:
 
         with open(schema_path, "r", encoding="utf-8") as f:
             schema_dict = yaml.safe_load(f)
-            schema = schema_dict.get(tool_name) or dict(schema_dict.values())
-        schema["tool_path"] = tool_path  # corresponding code file path of the tool
+            schemas = schema_dict.get(tool_name) or dict(schema_dict.values())
+        schemas["tool_path"] = tool_path  # corresponding code file path of the tool
         try:
-            ToolSchema(**schema)  # validation
+            ToolSchema(**schemas)  # validation
         except Exception:
             pass
             # logger.warning(
             #     f"{tool_name} schema not conforms to required format, but will be used anyway. Mismatch: {e}"
             # )
-        tool = Tool(name=tool_name, path=tool_path, schema=schema, code=tool_code)
+        tool = Tool(name=tool_name, path=tool_path, schemas=schemas, code=tool_code)
         self.tools[tool_name] = tool
         self.tools_by_types[tool_type_name][tool_name] = tool
         logger.info(f"{tool_name} registered")