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 c3ba937..9f6a2e9 100644
--- a/lzwcai_workflow_to_mcp/lzwcai_workflow_to_mcp/main.py
+++ b/lzwcai_workflow_to_mcp/lzwcai_workflow_to_mcp/main.py
@@ -219,10 +219,10 @@ 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 workflow[extraContext] 字段到 schema，可以接收任何类型（非必填）
+        # 添加 workflow_extraContext 字段到 schema，可以接收任何类型（非必填）
         if "properties" not in input_schema:
             input_schema["properties"] = {}
-        input_schema["properties"]["workflow[extraContext]"] = {
+        input_schema["properties"]["workflow_extraContext"] = {
             "description": "工作流额外的上下文参数（如环境变量等），可以是任何类型，非必填"
         }
         
@@ -263,20 +263,20 @@ 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 workflow[extraContext] 字段并合并到 inputs
+    # 提取 workflow_extraContext 字段并合并到 inputs
     inputs = arguments or {}
-    workflow_extra_context = inputs.pop("workflow[extraContext]", None)
+    workflow_extra_context = inputs.pop("workflow_extraContext", None)
     
-    # 如果 workflow[extraContext] 存在，将其内容合并到 inputs
+    # 如果 workflow_extraContext 存在，将其内容合并到 inputs
     if workflow_extra_context is not None:
         if isinstance(workflow_extra_context, dict):
-            # 如果 workflow[extraContext] 是字典，合并到 inputs
+            # 如果 workflow_extraContext 是字典，合并到 inputs
             inputs.update(workflow_extra_context)
-            logger.info(f"workflow[extraContext] 是字典类型，已合并到 inputs: {json.dumps(workflow_extra_context, ensure_ascii=False)}")
+            logger.info(f"workflow_extraContext 是字典类型，已合并到 inputs: {json.dumps(workflow_extra_context, ensure_ascii=False)}")
         else:
-            # 如果 workflow[extraContext] 不是字典，作为 workflow[extraContext] 字段保留
-            inputs["workflow[extraContext]"] = workflow_extra_context
-            logger.info(f"workflow[extraContext] 是 {type(workflow_extra_context).__name__} 类型，保留为 workflow[extraContext] 字段")
+            # 如果 workflow_extraContext 不是字典，作为 workflow_extraContext 字段保留
+            inputs["workflow_extraContext"] = workflow_extra_context
+            logger.info(f"workflow_extraContext 是 {type(workflow_extra_context).__name__} 类型，保留为 workflow_extraContext 字段")
     
     # 构建请求数据
     request_data = {
diff --git a/lzwcai_workflow_to_mcp/pyproject.toml b/lzwcai_workflow_to_mcp/pyproject.toml
index 54f8218..c80313b 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 = "0.1.7"
+version = "0.1.8"
 description = "MCP server for executing business SQL queries with dynamic tool generation"
 readme = "README.md"
 requires-python = ">=3.10"