diff --git a/docs/protocol.md b/docs/protocol.md
new file mode 100644
index 0000000000000000000000000000000000000000..dd894bf7f2bc7220cff9caeca25c6c3986f54bdd
--- /dev/null
+++ b/docs/protocol.md
@@ -0,0 +1,73 @@
+# api协议
+
+## agent与server通讯协议
+
+### 通用字段描述
+
+数据格式：json
+字段描述：
+|名称|类型|说明|是否必须|备注|
+|-|-|-|-|-|
+|message_id|string|消息id|y||
+|message_type|int|消息类型|y||
+|status|int|消息状态|y||
+|data|object|具体消息数据|y||
+
+示例：
+
+    {
+        "message_id":"xxxxxx",
+        "message_type":1,
+        "status":0,
+        "data":{
+        }
+    }
+
+
+### 心跳
+描述：由agent主动定时发送，server
+字段描述：
+|名称|类型|说明|是否必须|备注|
+|-|-|-|-|-|
+|message_type|int|消息类型，1|y||
+|agent_version|string|agent版本字符串|y||
+|up_time|string|xxx格式时间字符串|y||
+示例：
+
+    {
+        "message_id":"xxxxxx",
+        "message_type":1,
+        "status":0,
+        "data":{
+            "agent_version":"v1.1.1",
+            "agent_uptime":"2021-06-19T09:36:23+08:00"
+        }
+    }
+
+### 系统信息
+描述：获取agent所在机器系统信息
+字段描述：
+|名称|类型|说明|是否必须|备注|
+|-|-|-|-|-|
+|os_name|string|os名称|y||
+|os_pretty_name|string|os名称完整描述|y||
+|os_id|string|os id|y||
+|os_version|string|os版本|y||
+|os_version_id|string|os版本id|y||
+|os_arch|string|os架构|y||
+|kernel_version|string|kernel版本|y||
+|os_uptime|string|os启动时间|y||
+示例：
+
+    {
+        "message_id":"xxxxxx",
+        "message_type":1,
+        "status":0,
+        "data":{
+            "agent_version":"v1.1.1",
+            "up_time":"2021-06-19T09:36:23+08:00"
+        }
+    }
+
+
+## PilotGo server http API 协议
diff --git a/pkg/protocol/message.go b/pkg/protocol/message.go
index cb28cf26515ea4b87ee6cef14c7e8d8f4fedacac..20d41949899d828bf442d6b0996c1143e3eff094 100644
--- a/pkg/protocol/message.go
+++ b/pkg/protocol/message.go
@@ -18,6 +18,7 @@ const (
 	RunScript       = 7
 	AgentUpdate     = 8
 	AgentUninstall  = 9
+	Info            = 10
 )
 
 type Message struct {
diff --git a/pkg/service/userservice.go b/pkg/service/userservice.go
deleted file mode 100644
index 3070775ded74122c5efcc9e933d1038d1d7a9b0d..0000000000000000000000000000000000000000
--- a/pkg/service/userservice.go
+++ /dev/null
@@ -1,21 +0,0 @@
-package service
-
-/**
- * @Author: zhang han
- * @Date: 2021/11/12 17:22
- * @Description:
- */
-
-import (
-	"openeluer.org/PilotGo/PilotGo/pkg/db"
-	"openeluer.org/PilotGo/PilotGo/pkg/model"
-)
-
-func GetUserInfoList(info model.PageInfo) (err error, list interface{}, total int) {
-	limit := info.PageSize
-	offset := info.PageSize * (info.Page - 1)
-	var userList []model.User
-	err = db.DB.Find(&userList).Count(&total).Error
-	err = db.DB.Limit(limit).Offset(offset).Find(&userList).Error
-	return err, userList, total
-}
diff --git a/pkg/utils/command_test.go b/pkg/utils/command_test.go
new file mode 100644
index 0000000000000000000000000000000000000000..83eb19715b664041958487a2ea788ff39ff0dd9d
--- /dev/null
+++ b/pkg/utils/command_test.go
@@ -0,0 +1,9 @@
+package utils
+
+import (
+	"testing"
+)
+
+func TestRunCommand(t *testing.T) {
+
+}
diff --git a/pkg/utils/os/cpu.go b/pkg/utils/os/cpu.go
new file mode 100644
index 0000000000000000000000000000000000000000..cf1f67e0496206924f10e01798fbbf3562bf1a74
--- /dev/null
+++ b/pkg/utils/os/cpu.go
@@ -0,0 +1 @@
+package os
diff --git a/pkg/utils/os/disk.go b/pkg/utils/os/disk.go
new file mode 100644
index 0000000000000000000000000000000000000000..cf1f67e0496206924f10e01798fbbf3562bf1a74
--- /dev/null
+++ b/pkg/utils/os/disk.go
@@ -0,0 +1 @@
+package os
diff --git a/pkg/utils/os/firewall.go b/pkg/utils/os/firewall.go
new file mode 100644
index 0000000000000000000000000000000000000000..cf1f67e0496206924f10e01798fbbf3562bf1a74
--- /dev/null
+++ b/pkg/utils/os/firewall.go
@@ -0,0 +1 @@
+package os
diff --git a/pkg/utils/os/memory.go b/pkg/utils/os/memory.go
new file mode 100644
index 0000000000000000000000000000000000000000..cf1f67e0496206924f10e01798fbbf3562bf1a74
--- /dev/null
+++ b/pkg/utils/os/memory.go
@@ -0,0 +1 @@
+package os
diff --git a/pkg/utils/os/network.go b/pkg/utils/os/network.go
new file mode 100644
index 0000000000000000000000000000000000000000..cf1f67e0496206924f10e01798fbbf3562bf1a74
--- /dev/null
+++ b/pkg/utils/os/network.go
@@ -0,0 +1 @@
+package os
diff --git a/pkg/utils/os/rpm.go b/pkg/utils/os/rpm.go
new file mode 100644
index 0000000000000000000000000000000000000000..cf1f67e0496206924f10e01798fbbf3562bf1a74
--- /dev/null
+++ b/pkg/utils/os/rpm.go
@@ -0,0 +1 @@
+package os
diff --git a/pkg/utils/os/service.go b/pkg/utils/os/service.go
new file mode 100644
index 0000000000000000000000000000000000000000..cf1f67e0496206924f10e01798fbbf3562bf1a74
--- /dev/null
+++ b/pkg/utils/os/service.go
@@ -0,0 +1 @@
+package os
diff --git a/pkg/utils/os/sysctl.go b/pkg/utils/os/sysctl.go
new file mode 100644
index 0000000000000000000000000000000000000000..cf1f67e0496206924f10e01798fbbf3562bf1a74
--- /dev/null
+++ b/pkg/utils/os/sysctl.go
@@ -0,0 +1 @@
+package os
diff --git a/pkg/utils/os/system.go b/pkg/utils/os/system.go
new file mode 100644
index 0000000000000000000000000000000000000000..c771132aadbd81b3c76e81112782639d7f44b0ec
--- /dev/null
+++ b/pkg/utils/os/system.go
@@ -0,0 +1,11 @@
+package os
+
+// TODO: 通过 /etc/os-release 文件获取系统信息
+func GetOSInfo() {
+
+}
+
+// TODO: 获取系统启动时间，通过 /proc/uptime 获取
+func GetUpTime() {
+
+}
diff --git a/pkg/utils/os/user.go b/pkg/utils/os/user.go
new file mode 100644
index 0000000000000000000000000000000000000000..cf1f67e0496206924f10e01798fbbf3562bf1a74
--- /dev/null
+++ b/pkg/utils/os/user.go
@@ -0,0 +1 @@
+package os