diff --git a/demo/index.ts b/demo/index.ts
new file mode 100644
index 0000000..06bcd2f
--- /dev/null
+++ b/demo/index.ts
@@ -0,0 +1,13 @@
+import { createKeepAlive } from "@kevisual/cnb/keep";
+
+const config = {
+  "wss": "wss://cnb-d98-1jgeskb82-001.cnb.space:443/stable-3c0b449c6e6e37b44a8a7938c0d8a3049926a64c?reconnectionToken=aac306fc-b934-4035-8276-3dd429b7c4c0&reconnection=false&skipWebSocketFrames=false",
+  "cookie": "orange:workspace:cookie-session:cnb-d98-1jgeskb82-001=15aa8d88-e1f4-47f8-b6bf-761f94b021d0",
+  "url": "https://cnb-d98-1jgeskb82-001.cnb.space/?folder=/workspace"
+}
+
+createKeepAlive({
+  wsUrl: config.wss,
+  cookie: config.cookie,
+  debug: true,
+});
\ No newline at end of file
diff --git a/demo/package.json b/demo/package.json
new file mode 100644
index 0000000..2552471
--- /dev/null
+++ b/demo/package.json
@@ -0,0 +1,17 @@
+{
+  "name": "demo",
+  "version": "0.0.1",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "abearxiong <xiongxiao@xiongxiao.me> (https://www.xiongxiao.me)",
+  "license": "MIT",
+  "packageManager": "pnpm@10.28.2",
+  "type": "module",
+  "dependencies": {
+    "@kevisual/cnb": "^0.0.13"
+  }
+}
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index d238a62..5a9b6ae 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -64,6 +64,12 @@ importers:
         specifier: ^17.2.3
         version: 17.2.3
 
+  demo:
+    dependencies:
+      '@kevisual/cnb':
+        specifier: ^0.0.13
+        version: 0.0.13(dotenv@17.2.3)(typescript@5.9.3)
+
 packages:
 
   '@babel/code-frame@7.28.6':
@@ -80,6 +86,9 @@ packages:
   '@kevisual/ai@0.0.24':
     resolution: {integrity: sha512-7jvZk1/L//VIClK7usuNgN4ZA9Etgbooka1Sj5quE/0UywR+NNnwqXVZ89Y1fBhI1TkhauDsdJBAtcQ7r/vbVw==}
 
+  '@kevisual/cnb@0.0.13':
+    resolution: {integrity: sha512-n98lwnlVHz8YqceR/fcorYUaBzcvwwqehyOAGVrqCVwVLsltYmYuHUhzVy1bK3NJ6zwhVdoDrkq7+bv3ZqDT3g==}
+
   '@kevisual/context@0.0.4':
     resolution: {integrity: sha512-HJeLeZQLU+7tCluSfOyvkgKLs0HjCZrdJlZgEgKRSa8XTwZfMAUt6J7qZTbrZAHBlPtX68EPu/PI8JMCeu3WAQ==}
 
@@ -572,6 +581,39 @@ snapshots:
       '@kevisual/permission': 0.0.3
       '@kevisual/query': 0.0.38
 
+  '@kevisual/cnb@0.0.13(dotenv@17.2.3)(typescript@5.9.3)':
+    dependencies:
+      '@kevisual/query': 0.0.38
+      '@kevisual/router': 0.0.64(typescript@5.9.3)
+      '@kevisual/use-config': 1.0.28(dotenv@17.2.3)
+      es-toolkit: 1.44.0
+      nanoid: 5.1.6
+      unstorage: 1.17.4
+      ws: '@kevisual/ws@8.19.0'
+      zod: 4.3.6
+    transitivePeerDependencies:
+      - '@azure/app-configuration'
+      - '@azure/cosmos'
+      - '@azure/data-tables'
+      - '@azure/identity'
+      - '@azure/keyvault-secrets'
+      - '@azure/storage-blob'
+      - '@capacitor/preferences'
+      - '@deno/kv'
+      - '@netlify/blobs'
+      - '@planetscale/database'
+      - '@upstash/redis'
+      - '@vercel/blob'
+      - '@vercel/functions'
+      - '@vercel/kv'
+      - aws4fetch
+      - db0
+      - dotenv
+      - idb-keyval
+      - ioredis
+      - typescript
+      - uploadthing
+
   '@kevisual/context@0.0.4': {}
 
   '@kevisual/dts@0.0.3(typescript@5.9.3)':