diff --git a/app/actions/fetch_downloads.py b/app/actions/fetch_downloads.py
new file mode 100644
index 00000000..e69de29b
diff --git a/app/schemas/__init__.py b/app/schemas/__init__.py
index af94d83c..0a627bbe 100644
--- a/app/schemas/__init__.py
+++ b/app/schemas/__init__.py
@@ -20,3 +20,4 @@ from .exception import *
 from .system import *
 from .event import *
 from .workflow import *
+from .download import *
diff --git a/app/schemas/download.py b/app/schemas/download.py
new file mode 100644
index 00000000..d070b417
--- /dev/null
+++ b/app/schemas/download.py
@@ -0,0 +1,12 @@
+from typing import Optional
+
+from pydantic import BaseModel, Field
+
+
+class DownloadTask(BaseModel):
+    """
+     下载任务
+    """
+    download_id: Optional[str] = Field(None, description="任务ID")
+    downloader: Optional[str] = Field(None, description="下载器")
+    completed: Optional[bool] = Field(False, description="是否完成")
diff --git a/app/schemas/workflow.py b/app/schemas/workflow.py
index 32df0cd9..fa37f6a7 100644
--- a/app/schemas/workflow.py
+++ b/app/schemas/workflow.py
@@ -2,7 +2,7 @@ from typing import Optional, List, Tuple
 
 from pydantic import BaseModel, Field
 
-from app.schemas import Context, MediaInfo, FileItem, Site, Subscribe, Notification
+from app.schemas import Context, MediaInfo, FileItem, Site, Subscribe, Notification, DownloadTask
 
 
 class Workflow(BaseModel):
@@ -27,6 +27,9 @@ class Action(BaseModel):
     """
     name: Optional[str] = Field(None, description="动作名称")
     description: Optional[str] = Field(None, description="动作描述")
+    loop: Optional[bool] = Field(False, description="是否需要循环")
+    loop_interval: Optional[int] = Field(0, description="循环间隔 (秒)")
+    params: Optional[dict] = Field({}, description="参数")
 
 
 class ActionContext(BaseModel):
@@ -37,7 +40,7 @@ class ActionContext(BaseModel):
     torrents: Optional[List[Context]] = Field([], description="资源列表")
     medias: Optional[List[MediaInfo]] = Field([], description="媒体列表")
     fileitems: Optional[List[FileItem]] = Field([], description="文件列表")
-    downloads: Optional[List[Tuple[str, str]]] = Field([], description="下载任务列表")
+    downloads: Optional[List[DownloadTask]] = Field([], description="下载任务列表")
     sites: Optional[List[Site]] = Field([], description="站点列表")
     subscribes: Optional[List[Subscribe]] = Field([], description="订阅列表")
     messages: Optional[List[Notification]] = Field([], description="消息列表")