diff --git a/lzwcai_workflow_to_mcp/lzwcai_workflow_to_mcp/main.py b/lzwcai_workflow_to_mcp/lzwcai_workflow_to_mcp/main.py
index 5c2756a..9f13ce4 100644
--- a/lzwcai_workflow_to_mcp/lzwcai_workflow_to_mcp/main.py
+++ b/lzwcai_workflow_to_mcp/lzwcai_workflow_to_mcp/main.py
@@ -219,6 +219,13 @@ async def handle_list_tools() -> list[types.Tool]:
                 logger.warning("sqlParams 和 inputJsonSchema 都不存在，使用空 schema")
                 input_schema = {"type": "object", "properties": {}, "required": []}
         
+        # 添加 params 字段到 schema，可以接收任何类型
+        if "properties" not in input_schema:
+            input_schema["properties"] = {}
+        input_schema["properties"]["params"] = {
+            "description": "额外的参数，可以是任何类型"
+        }
+        
         tools.append(
             types.Tool(
                 name=name,
@@ -234,7 +241,7 @@ async def handle_list_tools() -> list[types.Tool]:
 @server.call_tool()
 async def handle_call_tool(
     name: str, 
-    arguments: dict | None
+    arguments: dict | None, 
 ) -> list[types.TextContent | types.ImageContent | types.EmbeddedResource]:
     """调用工具"""
     logger.info(f"收到 CallTool 请求: name={name}, arguments={json.dumps(arguments, ensure_ascii=False) if arguments else 'None'}")
@@ -256,10 +263,25 @@ async def handle_call_tool(
     workflow_id = tool_config.get("workflowId") or get_workflow_id()
     logger.info(f"使用工作流ID: {workflow_id}")
     
+    # 提取 params 字段并合并到 inputs
+    inputs = arguments or {}
+    params = inputs.pop("params", None)
+    
+    # 如果 params 存在，将其内容合并到 inputs
+    if params is not None:
+        if isinstance(params, dict):
+            # 如果 params 是字典，合并到 inputs
+            inputs.update(params)
+            logger.info(f"params 是字典类型，已合并到 inputs: {json.dumps(params, ensure_ascii=False)}")
+        else:
+            # 如果 params 不是字典，作为 params 字段保留
+            inputs["params"] = params
+            logger.info(f"params 是 {type(params).__name__} 类型，保留为 params 字段")
+    
     # 构建请求数据
     request_data = {
         "workflowId": workflow_id,
-        "inputs": arguments or {}
+        "inputs": inputs
     }
     
     logger.info(f"执行工作流请求数据: {json.dumps(request_data, ensure_ascii=False, indent=2)}")
diff --git a/lzwcai_workflow_to_mcp/pyproject.toml b/lzwcai_workflow_to_mcp/pyproject.toml
index d864806..887fb12 100644
--- a/lzwcai_workflow_to_mcp/pyproject.toml
+++ b/lzwcai_workflow_to_mcp/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "lzwcai-workflow-to-mcp"
-version = "0.1.5"
+version = "0.1.6"
 description = "MCP server for executing business SQL queries with dynamic tool generation"
 readme = "README.md"
 requires-python = ">=3.10"