diff --git a/auth/auth.go b/auth/auth.go
index 533d806..f6b526b 100644
--- a/auth/auth.go
+++ b/auth/auth.go
@@ -109,12 +109,6 @@ func (f *authFactory) New(scope string) Auth {
 		policies:     make(map[string][][2]string),
 		roleInitDone: make(map[string]bool),
 	}
-	// 设置权限域信息
-	auth.roleDefs["_scope_info"] = roleDefinition{
-		code:        "_scope_info",
-		name:        scope,
-		description: scope + " scope",
-	}
 	f.apps[scope] = auth
 	return auth
 }
@@ -175,9 +169,6 @@ func (a *appAuth) AddRole(roleCode, roleName string, policies ...string) error {
 	if roleCode == "" || roleName == "" {
 		return fmt.Errorf("role code and name cannot be empty")
 	}
-	if roleCode == "_scope_info" {
-		return fmt.Errorf("reserved role code: _scope_info")
-	}
 
 	// 解析并验证权限格式
 	parsedPolicies := make([][2]string, 0, len(policies))