diff --git a/collection/opendb-news-articles/collection.json b/collection/opendb-news-articles/collection.json
index 33de6b6..0bec6d6 100644
--- a/collection/opendb-news-articles/collection.json
+++ b/collection/opendb-news-articles/collection.json
@@ -2,6 +2,12 @@
   "schema": {
     "bsonType": "object",
     "required": ["user_id", "title", "content", "article_status", "view_count", "like_count", "is_sticky", "is_essence", "comment_status", "comment_count","mode"],
+    "permission": {
+      ".read": true, 
+      ".create": "auth.uid != null", 
+      ".update": "doc.uid == auth.uid",
+      ".delete": "doc.uid == auth.uid" 
+    },
     "properties": {
       "_id": {
         "description": "存储文档 ID（用户 ID），系统自动生成"
@@ -37,19 +43,31 @@
       },
       "view_count": {
         "bsonType": "int",
-        "description": "阅读数量"
+        "description": "阅读数量",
+        "permission": {
+          ".write": false
+        }
       },
       "like_count": {
         "bsonType": "int",
-        "description": "喜欢数、点赞数"
+        "description": "喜欢数、点赞数",
+        "permission": {
+          ".write": false
+        }
       },
       "is_sticky": {
         "bsonType": "bool",
-        "description": "是否置顶"
+        "description": "是否置顶",
+        "permission": {
+          ".write": false
+        }
       },
       "is_essence": {
         "bsonType": "bool",
-        "description": "阅读加精"
+        "description": "阅读加精",
+        "permission": {
+          ".write": false
+        }
       },
       "comment_status": {
         "bsonType": "int",
@@ -59,7 +77,10 @@
       },
       "comment_count": {
         "bsonType": "int",
-        "description": "评论数量"
+        "description": "评论数量",
+        "permission": {
+          ".write": false
+        }
       },
       "last_comment_user_id": {
         "bsonType": "string",
@@ -72,11 +93,17 @@
       },
       "publish_date": {
         "bsonType": "timestamp",
-        "description": "发表时间"
+        "description": "发表时间",
+        "defaultValue": {
+          "$env": "now"
+        }
       },
       "publish_ip": {
         "bsonType": "string",
-        "description": "发表时 IP 地址"
+        "description": "发表时 IP 地址",
+        "forceDefaultValue": {
+          "$env": "clientIP"
+        }
       },
       "last_modify_date": {
         "bsonType": "timestamp",