diff --git a/skills/lark-approval/SKILL.md b/skills/lark-approval/SKILL.md
index 713330e82..c5b0fe787 100644
--- a/skills/lark-approval/SKILL.md
+++ b/skills/lark-approval/SKILL.md
@@ -35,6 +35,8 @@ lark-cli approval <resource> <method> [flags] # 调用 API
   - `reject` — 拒绝审批任务
   - `transfer` — 转交审批任务
   - `query` — 查询用户的任务列表
+  - `add_sign` — 审批任务加签
+  - `rollback` — 退回审批任务
 
 ## 权限表
 
@@ -49,4 +51,6 @@ lark-cli approval <resource> <method> [flags] # 调用 API
 | `tasks.reject` | `approval:task:write` |
 | `tasks.transfer` | `approval:task:write` |
 | `tasks.query` | `approval:task:read` |
+| `tasks.add_sign` | `approval:task:write` |
+| `tasks.rollback` | `approval:task:write` |