diff --git a/docs/plugins/tool-components.md b/docs/plugins/tool-components.md
index cd48a0541..059656aa4 100644
--- a/docs/plugins/tool-components.md
+++ b/docs/plugins/tool-components.md
@@ -24,7 +24,7 @@
 
 每个工具必须继承 `BaseTool` 基类并实现以下属性和方法：
 ```python
-from src.plugin_system import BaseTool
+from src.plugin_system import BaseTool, ToolParamType
 
 class MyTool(BaseTool):
     # 工具名称，必须唯一
@@ -45,13 +45,14 @@ class MyTool(BaseTool):
     #         "limit": {
     #             "type": "integer", 
     #             "description": "结果数量限制"
+    #             "enum": [10, 20, 50]  # 可选值
     #         }
     #     },
     #     "required": ["query"]
     # }
     parameters = [
-        ("query", "string", "查询参数", True),  # 必填参数
-        ("limit", "integer", "结果数量限制", False)  # 可选参数
+        ("query", ToolParamType.STRING, "查询参数", True, None),  # 必填参数
+        ("limit", ToolParamType.INTEGER, "结果数量限制", False, ["10", "20", "50"])  # 可选参数
     ]
 
     available_for_llm = True  # 是否对LLM可用
@@ -104,8 +105,8 @@ class WeatherTool(BaseTool):
     description = "查询指定城市的实时天气信息，包括温度、湿度、天气状况等"
     available_for_llm = True  # 允许LLM调用此工具
     parameters = [
-        ("city", "string", "要查询天气的城市名称，如：北京、上海、纽约", True),
-        ("country", "string", "国家代码，如：CN、US，可选参数", False)
+        ("city", ToolParamType.STRING, "要查询天气的城市名称，如：北京、上海、纽约", True, None),
+        ("country", ToolParamType.STRING, "国家代码，如：CN、US，可选参数", False, None)
     ]
     
     async def execute(self, function_args: dict):
@@ -214,8 +215,8 @@ description = "获取信息"      # 不够具体
 #### ✅ 合理的参数设计
 ```python
 parameters = [
-    ("city", "string", "城市名称，如：北京、上海", True),
-    ("unit", "string", "温度单位：celsius 或 fahrenheit", False)
+    ("city", ToolParamType.STRING, "城市名称，如：北京、上海", True, None),
+    ("unit", ToolParamType.STRING, "温度单位：celsius 或 fahrenheit", False, ["celsius", "fahrenheit"])
 ]
 ```
 #### ❌ 避免的参数设计
diff --git a/src/plugins/built_in/knowledge/get_knowledge.py b/src/plugins/built_in/knowledge/get_knowledge.py
index 54f93cddf..ce90cb680 100644
--- a/src/plugins/built_in/knowledge/get_knowledge.py
+++ b/src/plugins/built_in/knowledge/get_knowledge.py
@@ -1,10 +1,12 @@
-from src.plugin_system.base.base_tool import BaseTool
+import json  # Added for parsing embedding
+import math  # Added for cosine similarity
+from typing import Any, Union, List  # Added List
+
 from src.chat.utils.utils import get_embedding
 from src.common.database.database_model import Knowledges  # Updated import
 from src.common.logger import get_logger
-from typing import Any, Union, List  # Added List
-import json  # Added for parsing embedding
-import math  # Added for cosine similarity
+from src.plugin_system import BaseTool, ToolParamType
+
 
 logger = get_logger("get_knowledge_tool")
 
@@ -15,8 +17,8 @@ class SearchKnowledgeTool(BaseTool):
     name = "search_knowledge"
     description = "使用工具从知识库中搜索相关信息"
     parameters = [
-        ("query", "string", "搜索查询关键词", True),
-        ("threshold", "float", "相似度阈值，0.0到1.0之间", False),
+        ("query", ToolParamType.STRING, "搜索查询关键词", True, None),
+        ("threshold", ToolParamType.FLOAT, "相似度阈值，0.0到1.0之间", False, None),
     ]
 
     async def execute(self, function_args: dict[str, Any]) -> dict[str, Any]:
diff --git a/src/plugins/built_in/knowledge/lpmm_get_knowledge.py b/src/plugins/built_in/knowledge/lpmm_get_knowledge.py
index ef74add92..da20c348b 100644
--- a/src/plugins/built_in/knowledge/lpmm_get_knowledge.py
+++ b/src/plugins/built_in/knowledge/lpmm_get_knowledge.py
@@ -1,10 +1,8 @@
-from src.plugin_system.base.base_tool import BaseTool
-
-# from src.common.database import db
-from src.common.logger import get_logger
 from typing import Dict, Any
-from src.chat.knowledge.knowledge_lib import qa_manager
 
+from src.common.logger import get_logger
+from src.chat.knowledge.knowledge_lib import qa_manager
+from src.plugin_system import BaseTool, ToolParamType
 
 logger = get_logger("lpmm_get_knowledge_tool")
 
@@ -15,8 +13,8 @@ class SearchKnowledgeFromLPMMTool(BaseTool):
     name = "lpmm_search_knowledge"
     description = "从知识库中搜索相关信息，如果你需要知识，就使用这个工具"
     parameters = [
-        ("query", "string", "搜索查询关键词", True),
-        ("threshold", "float", "相似度阈值，0.0到1.0之间", False),
+        ("query", ToolParamType.STRING, "搜索查询关键词", True, None),
+        ("threshold", ToolParamType.FLOAT, "相似度阈值，0.0到1.0之间", False, None),
     ]
 
     async def execute(self, function_args: Dict[str, Any]) -> Dict[str, Any]: