diff --git a/internal/room/tools/definitions.go b/internal/room/tools/definitions.go
index 5144a67..e1cdec9 100644
--- a/internal/room/tools/definitions.go
+++ b/internal/room/tools/definitions.go
@@ -127,4 +127,39 @@ var FileTools = []openai.Tool{
 			}`,
 		},
 	},
+	{
+		Type: openai.ToolTypeFunction,
+		Function: &openai.FunctionDefinition{
+			Name:        "git_status",
+			Description: "查看 Git 工作区状态",
+			Parameters:  `{"type": "object", "properties": {}}`,
+		},
+	},
+	{
+		Type: openai.ToolTypeFunction,
+		Function: &openai.FunctionDefinition{
+			Name:        "git_diff",
+			Description: "查看文件变更",
+			Parameters: `{
+				"type": "object",
+				"properties": {
+					"filename": {"type": "string", "description": "文件名"}
+				}
+			}`,
+		},
+	},
+	{
+		Type: openai.ToolTypeFunction,
+		Function: &openai.FunctionDefinition{
+			Name:        "git_commit",
+			Description: "提交更改",
+			Parameters: `{
+				"type": "object",
+				"properties": {
+					"message": {"type": "string", "description": "提交信息"}
+				},
+				"required": ["message"]
+			}`,
+		},
+	},
 }