diff --git a/auto-check/.gitignore b/auto-check/.gitignore
new file mode 100644
index 0000000..a5a40f0
--- /dev/null
+++ b/auto-check/.gitignore
@@ -0,0 +1,8 @@
+# 运行产物
+reports/
+*.exe
+*.test
+
+# IDE
+.idea/
+.vscode/
diff --git a/auto-check/README.md b/auto-check/README.md
new file mode 100644
index 0000000..1de1b7a
--- /dev/null
+++ b/auto-check/README.md
@@ -0,0 +1,90 @@
+# auto-check
+
+自动化网段扫描 + SSH 登录 + 远程压力测试工具。
+
+基于 [cobra](https://github.com/spf13/cobra) 命令行框架。
+
+## 功能
+
+| 子命令 | 功能 | 包 |
+|--------|------|-----|
+| `run` | 完整流程：发现 → SSH → 压测 | 全部 |
+| `scan` | 仅扫描网段，发现存活设备 | `pkg/discovery` |
+| `stress` | 对指定 IP 执行压力测试 | `pkg/stress` + `pkg/sshclient` |
+
+## 安装
+
+```bash
+go build -o auto-check .
+```
+
+## 使用
+
+```bash
+# 查看帮助
+./auto-check --help
+
+# 仅扫描网段
+./auto-check scan --cidr 192.168.1.0/24
+
+# 对指定主机执行压力测试
+./auto-check stress --ips 192.168.1.100,192.168.1.101 --user root --password secret --stress cpu,memory,disk
+
+# 完整流程（扫描 → SSH → 压测）
+./auto-check run --cidr 192.168.1.0/24 --user root --password secret --stress cpu,memory,disk
+```
+
+## 全局标志
+
+| 标志 | 默认值 | 说明 |
+|------|--------|------|
+| `--cidr` | `192.168.1.0/24` | 目标网段 (CIDR) |
+| `--user` | `root` | SSH 用户名 |
+| `--password` | _(空)_ | SSH 密码 |
+| `--key` | _(空)_ | SSH 私钥路径 |
+| `--port` | `22` | SSH 端口 |
+| `--timeout` | `3s` | 超时 |
+| `--concurrency` | `50` | 并发扫描数 |
+| `--report` | _(自动生成)_ | 报告输出路径 |
+
+## 子命令标志
+
+### `run` / `stress`
+| 标志 | 默认值 | 说明 |
+|------|--------|------|
+| `--stress` | `cpu,memory` | 压测类型: `cpu`, `memory`, `disk`, `memnative`, `full` |
+| `--duration` | `30s` | 持续时间 |
+| `--threads` | `4` | 线程数 |
+| `--ips` | _(必填,仅stress)_ | 目标 IP (逗号分隔) |
+
+## 压力测试类型
+
+| 类型 | 工具 | 说明 |
+|------|------|------|
+| `cpu` | stress-ng | CPU 全方法压测 |
+| `memory` | stress-ng | 内存压测 |
+| `disk` | stress-ng | 磁盘IO混合压测 |
+| `memnative` | stressapptest | 内存稳定性精压（数据完整性校验） |
+| `full` | stress-ng | CPU+内存+磁盘 三合一综合压测 |
+
+## 项目结构
+
+```
+auto-check/
+├── main.go
+├── cmd/
+│   └── root.go              # 所有子命令
+├── pkg/
+│   ├── discovery/           # 设备发现
+│   ├── sshclient/           # SSH 客户端
+│   ├── stress/              # 压力测试
+│   │   ├── types.go         # 类型定义
+│   │   ├── tools.go         # 工具检测 + 监控
+│   │   ├── runners.go       # 压测实现
+│   │   └── runner.go        # 调度器
+│   └── report/              # 报告模块
+├── go.mod
+└── README.md
+```
+
+> ⚠️ 请在授权设备上使用，未授权扫描/测试可能违反法律法规。
diff --git a/auto-check/auto-check.yaml b/auto-check/auto-check.yaml
new file mode 100644
index 0000000..c079b44
--- /dev/null
+++ b/auto-check/auto-check.yaml
@@ -0,0 +1,29 @@
+# auto-check 配置文件
+# 所有参数仅从本文件加载，按分类组织
+
+# --- 网段扫描 ---
+scan:
+  cidr: "192.168.1.0/24"
+  timeout: 3s
+  concurrency: 50
+
+# --- SSH 认证 ---
+ssh:
+  user: "root"
+  password: ""
+  key: ""
+  port: 22
+
+# --- 压力测试 ---
+stress:
+  types: "cpu,memory"
+  duration: 30s
+  threads: 4
+
+# --- 工作流 ---
+workflow:
+  interval: 10s
+
+# --- 报告 ---
+report:
+  path: "reports"
diff --git a/auto-check/cmd/root.go b/auto-check/cmd/root.go
new file mode 100644
index 0000000..817320b
--- /dev/null
+++ b/auto-check/cmd/root.go
@@ -0,0 +1,35 @@
+package cmd
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/spf13/cobra"
+)
+
+var (
+	configFile string // 配置文件路径
+)
+
+var rootCmd = &cobra.Command{
+	Use:   "auto-check",
+	Short: "自动化设备发现 + SSH 登录 + 远程压力测试工具",
+	Long: `auto-check 是一个自动化运维工具，支持：
+  1. 网段扫描发现存活设备
+  2. 自动 SSH 登录验证
+  3. 远程执行压力测试（CPU/内存/磁盘/网络）
+
+配置仅从配置文件加载（默认 ./auto-check.yaml）`,
+}
+
+func init() {
+	rootCmd.PersistentFlags().StringVar(&configFile, "config", "", "配置文件路径 (默认: ./auto-check.yaml)")
+}
+
+// Execute 入口：加载配置并启动
+func Execute() {
+	if err := rootCmd.Execute(); err != nil {
+		fmt.Fprintln(os.Stderr, err)
+		os.Exit(1)
+	}
+}
diff --git a/auto-check/cmd/run.go b/auto-check/cmd/run.go
new file mode 100644
index 0000000..969ef69
--- /dev/null
+++ b/auto-check/cmd/run.go
@@ -0,0 +1,33 @@
+package cmd
+
+import (
+	"fmt"
+
+	"auto-check/pkg/config"
+	"auto-check/pkg/workflow"
+
+	"github.com/spf13/cobra"
+)
+
+var runCmd = &cobra.Command{
+	Use:   "run",
+	Short: "启动永久循环工作流：扫描 → 增量压测 → 状态打印",
+	RunE: func(cmd *cobra.Command, args []string) error {
+		// 从配置文件加载配置
+		cfg, err := config.Load(configFile)
+		if err != nil {
+			return err
+		}
+		fmt.Printf("  [配置] 加载完成: 网段=%s 间隔=%v 压测=%s\n",
+			cfg.Scan.CIDR, cfg.Workflow.Interval, cfg.Stress.Types)
+
+		// 启动工作流（永久循环）
+		ctx := workflow.NewContext()
+		ctx.Config = *cfg
+		return workflow.Loop(ctx)
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(runCmd)
+}
diff --git a/auto-check/go.mod b/auto-check/go.mod
new file mode 100644
index 0000000..c1e0deb
--- /dev/null
+++ b/auto-check/go.mod
@@ -0,0 +1,15 @@
+module auto-check
+
+go 1.25.1
+
+require (
+	github.com/spf13/cobra v1.10.2
+	golang.org/x/crypto v0.54.0
+)
+
+require (
+	github.com/inconshreveable/mousetrap v1.1.0 // indirect
+	github.com/spf13/pflag v1.0.10 // indirect
+	golang.org/x/sys v0.47.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+)
diff --git a/auto-check/go.sum b/auto-check/go.sum
new file mode 100644
index 0000000..1311007
--- /dev/null
+++ b/auto-check/go.sum
@@ -0,0 +1,19 @@
+github.com/cpuguy83/go-md2man/v2 v2.0.6/go.mod h1:oOW0eioCTA6cOiMLiUPZOpcVxMig6NIQQ7OS05n1F4g=
+github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
+github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
+github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
+github.com/spf13/cobra v1.10.2 h1:DMTTonx5m65Ic0GOoRY2c16WCbHxOOw6xxezuLaBpcU=
+github.com/spf13/cobra v1.10.2/go.mod h1:7C1pvHqHw5A4vrJfjNwvOdzYu0Gml16OCs2GRiTUUS4=
+github.com/spf13/pflag v1.0.9/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
+github.com/spf13/pflag v1.0.10 h1:4EBh2KAYBwaONj6b2Ye1GiHfwjqyROoF4RwYO+vPwFk=
+github.com/spf13/pflag v1.0.10/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
+go.yaml.in/yaml/v3 v3.0.4/go.mod h1:DhzuOOF2ATzADvBadXxruRBLzYTpT36CKvDb3+aBEFg=
+golang.org/x/crypto v0.54.0 h1:YLIA59K4fiNzHzjnZt2tUJQjQtUWfWbeHBqKtk3eScw=
+golang.org/x/crypto v0.54.0/go.mod h1:KWL8ny2AZdGR2cWmzeHrp2azQPGogOv+HeQaVEXC2dk=
+golang.org/x/sys v0.47.0 h1:o7XGOvZQCADBQQ4Y7VNq2dRWQR7JmOUW8Kxx4ZsNgWs=
+golang.org/x/sys v0.47.0/go.mod h1:4GL1E5IUh+htKOUEOaiffhrAeqysfVGipDYzABqnCmw=
+golang.org/x/term v0.45.0 h1:NwWyBmoJCbfTHpxrWoZ9C6/VxOf7ic219I8xZZFdrf0=
+golang.org/x/term v0.45.0/go.mod h1:9aqxs0blBcrm/n0L9QW0aRVD+ktan8ssZromtqJC43w=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
diff --git a/auto-check/main.go b/auto-check/main.go
new file mode 100644
index 0000000..9aa682f
--- /dev/null
+++ b/auto-check/main.go
@@ -0,0 +1,7 @@
+package main
+
+import "auto-check/cmd"
+
+func main() {
+	cmd.Execute()
+}
diff --git a/auto-check/pkg/config/config.go b/auto-check/pkg/config/config.go
new file mode 100644
index 0000000..c16a2f5
--- /dev/null
+++ b/auto-check/pkg/config/config.go
@@ -0,0 +1,119 @@
+package config
+
+import (
+	"fmt"
+	"os"
+	"time"
+
+	"gopkg.in/yaml.v3"
+)
+
+// ============================
+// Config — 分类配置
+// ============================
+
+// Config 全局运行配置（仅从配置文件加载）
+type Config struct {
+	Scan     ScanConfig     `yaml:"scan"`
+	SSH      SSHConfig      `yaml:"ssh"`
+	Stress   StressConfig   `yaml:"stress"`
+	Report   ReportConfig   `yaml:"report"`
+	Workflow WorkflowConfig `yaml:"workflow"`
+}
+
+// ============================
+// 分类配置项
+// ============================
+
+// ScanConfig 网段扫描
+type ScanConfig struct {
+	CIDR        string        `yaml:"cidr"`
+	Timeout     time.Duration `yaml:"timeout"`
+	Concurrency int           `yaml:"concurrency"`
+}
+
+// SSHConfig SSH 认证
+type SSHConfig struct {
+	User     string `yaml:"user"`
+	Password string `yaml:"password"`
+	KeyFile  string `yaml:"key"`
+	Port     int    `yaml:"port"`
+}
+
+// StressConfig 压力测试
+type StressConfig struct {
+	Types    string        `yaml:"types"`
+	Duration time.Duration `yaml:"duration"`
+	Threads  int           `yaml:"threads"`
+}
+
+// ReportConfig 报告
+type ReportConfig struct {
+	Path string `yaml:"path"`
+}
+
+// WorkflowConfig 工作流
+type WorkflowConfig struct {
+	Interval time.Duration `yaml:"interval"` // 轮询间隔
+}
+
+// ============================
+// 加载
+// ============================
+
+// Default 内置默认配置
+func Default() *Config {
+	return &Config{
+		Scan: ScanConfig{
+			CIDR:        "192.168.1.0/24",
+			Timeout:     3 * time.Second,
+			Concurrency: 50,
+		},
+		SSH: SSHConfig{
+			User: "root",
+			Port: 22,
+		},
+		Stress: StressConfig{
+			Types:    "cpu,memory",
+			Duration: 30 * time.Second,
+			Threads:  4,
+		},
+		Workflow: WorkflowConfig{
+			Interval: 10 * time.Second,
+		},
+	}
+}
+
+// Load 从文件加载配置（覆盖默认值）
+// path 为空时尝试加载 ./auto-check.yaml
+// 文件不存在时返回默认配置
+func Load(path string) (*Config, error) {
+	cfg := Default()
+
+	if path == "" {
+		path = "auto-check.yaml"
+	}
+
+	data, err := os.ReadFile(path)
+	if err != nil {
+		if os.IsNotExist(err) {
+			return cfg, nil // 无配置文件，使用默认值
+		}
+		return nil, fmt.Errorf("读取配置文件失败: %w", err)
+	}
+
+	if err := yaml.Unmarshal(data, cfg); err != nil {
+		return nil, fmt.Errorf("解析配置文件 %s 失败: %w", path, err)
+	}
+
+	return cfg, nil
+}
+
+// LoadFromString 从字符串加载（用于测试）
+func LoadFromString(s string) (*Config, error) {
+	cfg := Default()
+	if err := yaml.Unmarshal([]byte(s), cfg); err != nil {
+		return nil, fmt.Errorf("解析配置失败: %w", err)
+	}
+	return cfg, nil
+}
diff --git a/auto-check/pkg/discovery/discovery.go b/auto-check/pkg/discovery/discovery.go
new file mode 100644
index 0000000..4b2be06
--- /dev/null
+++ b/auto-check/pkg/discovery/discovery.go
@@ -0,0 +1,205 @@
+package discovery
+
+import (
+	"fmt"
+	"net"
+	"os"
+	"os/exec"
+	"runtime"
+	"strings"
+	"sync"
+	"time"
+)
+
+// Host 存活主机信息
+type Host struct {
+	IP       net.IP
+	MAC      string // 物理地址（设备唯一标识）
+	Alive    bool
+	OpenPort int
+}
+
+// Scanner 网段扫描器
+type Scanner struct {
+	CIDR        string
+	Port        int
+	Timeout     time.Duration
+	Concurrency int
+}
+
+// NewScanner 创建扫描器
+func NewScanner(cidr string, port int, timeout time.Duration, concurrency int) *Scanner {
+	return &Scanner{
+		CIDR:        cidr,
+		Port:        port,
+		Timeout:     timeout,
+		Concurrency: concurrency,
+	}
+}
+
+// Scan 扫描网段，返回存活主机列表
+func (s *Scanner) Scan() []Host {
+	ip, ipnet, err := net.ParseCIDR(s.CIDR)
+	if err != nil {
+		fmt.Printf("[扫描] 网段解析失败: %v\n", err)
+		return nil
+	}
+
+	var ips []net.IP
+	for ip := ip.Mask(ipnet.Mask); ipnet.Contains(ip); inc(ip) {
+		dst := make(net.IP, len(ip))
+		copy(dst, ip)
+		ips = append(ips, dst)
+	}
+	// 排除网络地址和广播地址
+	if len(ips) > 2 {
+		ips = ips[1 : len(ips)-1]
+	}
+
+	fmt.Printf("[扫描] 网段 %s，共 %d 个IP，开始探测...\n", s.CIDR, len(ips))
+
+	// 并发探测
+	var mu sync.Mutex
+	var wg sync.WaitGroup
+	var results []Host
+
+	sem := make(chan struct{}, s.Concurrency)
+	for _, ip := range ips {
+		wg.Add(1)
+		sem <- struct{}{}
+		go func(target net.IP) {
+			defer wg.Done()
+			defer func() { <-sem }()
+
+			h := s.probe(target)
+			if h.Alive {
+				// 获取 MAC 地址（TCP 探测已触发 ARP 解析）
+				h.MAC = getMAC(target.String())
+				mu.Lock()
+				results = append(results, h)
+				mu.Unlock()
+				desc := "无MAC"
+				if h.MAC != "" {
+					desc = h.MAC
+				}
+				fmt.Printf("  [+] %s 存活 (MAC: %s, 端口 %d 开放)\n", target, desc, h.OpenPort)
+			}
+		}(ip)
+	}
+	wg.Wait()
+
+	fmt.Printf("[扫描] 完成，发现 %d 台存活主机\n", len(results))
+	return results
+}
+
+// probe 探测单个 IP
+func (s *Scanner) probe(ip net.IP) Host {
+	h := Host{IP: ip}
+
+	// TCP 端口探测（连接成功会触发本地 ARP 解析）
+	addr := net.JoinHostPort(ip.String(), fmt.Sprintf("%d", s.Port))
+	conn, err := net.DialTimeout("tcp", addr, s.Timeout)
+	if err == nil {
+		conn.Close()
+		h.Alive = true
+		h.OpenPort = s.Port
+		return h
+	}
+
+	// 备选：尝试常见端口
+	for _, p := range []int{22, 80, 443, 8080, 3306} {
+		addr = net.JoinHostPort(ip.String(), fmt.Sprintf("%d", p))
+		conn, err = net.DialTimeout("tcp", addr, s.Timeout)
+		if err == nil {
+			conn.Close()
+			h.Alive = true
+			h.OpenPort = p
+			return h
+		}
+	}
+
+	return h
+}
+
+// getMAC 从 ARP 表获取 IP 对应的 MAC 地址（跨平台）
+// 返回空字符串表示无法获取
+func getMAC(ip string) string {
+	switch runtime.GOOS {
+	case "linux":
+		return macFromProcNetArp(ip)
+	case "windows":
+		return macFromWindowsArp(ip)
+	case "darwin":
+		return macFromUnixArp(ip)
+	default:
+		return macFromUnixArp(ip)
+	}
+}
+
+// macFromProcNetArp 解析 Linux /proc/net/arp
+func macFromProcNetArp(ip string) string {
+	data, err := os.ReadFile("/proc/net/arp")
+	if err != nil {
+		return ""
+	}
+	for _, line := range strings.Split(string(data), "\n")[1:] {
+		fields := strings.Fields(line)
+		if len(fields) >= 4 && fields[0] == ip {
+			mac := fields[3]
+			if mac != "" && mac != "00:00:00:00:00:00" {
+				return mac
+			}
+		}
+	}
+	return ""
+}
+
+// macFromWindowsArp 解析 Windows `arp -a` 输出
+func macFromWindowsArp(ip string) string {
+	out, err := exec.Command("arp", "-a").Output()
+	if err != nil {
+		return ""
+	}
+	for _, line := range strings.Split(string(out), "\n") {
+		fields := strings.Fields(line)
+		// Windows 格式: IP  MAC  Type
+		if len(fields) >= 2 && fields[0] == ip {
+			mac := strings.ReplaceAll(fields[1], "-", ":")
+			if mac != "" && mac != "00:00:00:00:00:00" {
+				return strings.ToLower(mac)
+			}
+		}
+	}
+	return ""
+}
+
+// macFromUnixArp 解析 macOS/Linux `arp -n` 输出
+func macFromUnixArp(ip string) string {
+	out, err := exec.Command("arp", "-n", ip).Output()
+	if err != nil {
+		return ""
+	}
+	for _, line := range strings.Split(string(out), "\n") {
+		fields := strings.Fields(line)
+		// macOS 格式: ? (IP) at MAC on en0 ifscope [ethernet]
+		for i, f := range fields {
+			if f == "("+ip+")" && i+2 < len(fields) {
+				mac := fields[i+2]
+				if mac != "" && mac != "ff:ff:ff:ff:ff:ff" {
+					return strings.ToLower(mac)
+				}
+			}
+		}
+	}
+	return ""
+}
+
+// inc IP 递增
+func inc(ip net.IP) {
+	for j := len(ip) - 1; j >= 0; j-- {
+		ip[j]++
+		if ip[j] > 0 {
+			break
+		}
+	}
+}
diff --git a/auto-check/pkg/report/report.go b/auto-check/pkg/report/report.go
new file mode 100644
index 0000000..cddbaa6
--- /dev/null
+++ b/auto-check/pkg/report/report.go
@@ -0,0 +1,262 @@
+package report
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+	"time"
+)
+
+// PhaseResult 单阶段结果
+type PhaseResult struct {
+	Phase   string   `json:"phase" yaml:"phase"`
+	Status  string   `json:"status" yaml:"status"` // success / partial / failed
+	Hosts   []HostResult `json:"hosts" yaml:"hosts"`
+	Summary string   `json:"summary" yaml:"summary"`
+}
+
+// HostResult 单台主机结果
+type HostResult struct {
+	IP         string            `json:"ip" yaml:"ip"`
+	Alive      bool              `json:"alive" yaml:"alive"`
+	OpenPort   int               `json:"open_port,omitempty" yaml:"open_port,omitempty"`
+	SSHLogin   bool              `json:"ssh_login" yaml:"ssh_login"`
+	SSHErr     string            `json:"ssh_error,omitempty" yaml:"ssh_error,omitempty"`
+	Stress     []StressResult    `json:"stress,omitempty" yaml:"stress,omitempty"`
+}
+
+// StressResult 单项压力测试结果
+type StressResult struct {
+	Type     string `json:"type" yaml:"type"`
+	Status   string `json:"status" yaml:"status"` // pass / fail / skip
+	Duration string `json:"duration" yaml:"duration"`
+	Output   string `json:"output,omitempty" yaml:"output,omitempty"`
+	Error    string `json:"error,omitempty" yaml:"error,omitempty"`
+}
+
+// Report 检测报告
+type Report struct {
+	StartTime time.Time     `json:"start_time" yaml:"start_time"`
+	EndTime   time.Time     `json:"end_time" yaml:"end_time"`
+	Duration  string        `json:"duration" yaml:"duration"`
+	Config    ConfigSummary `json:"config" yaml:"config"`
+	Phases    []PhaseResult `json:"phases" yaml:"phases"`
+}
+
+// ConfigSummary 配置摘要（脱敏）
+type ConfigSummary struct {
+	CIDR        string `json:"cidr" yaml:"cidr"`
+	Port        int    `json:"port" yaml:"port"`
+	User        string `json:"user" yaml:"user"`
+	Concurrency int    `json:"concurrency" yaml:"concurrency"`
+	StressTypes string `json:"stress_types,omitempty" yaml:"stress_types,omitempty"`
+}
+
+// Builder 报告构建器
+type Builder struct {
+	report  *Report
+	phase   *PhaseResult
+}
+
+// NewBuilder 创建报告构建器
+func NewBuilder(cfg ConfigSummary) *Builder {
+	return &Builder{
+		report: &Report{
+			StartTime: time.Now(),
+			Config:    cfg,
+		},
+	}
+}
+
+// StartPhase 开始新阶段
+func (b *Builder) StartPhase(name string) {
+	b.phase = &PhaseResult{
+		Phase: name,
+	}
+}
+
+// AddHost 添加主机结果到当前阶段
+func (b *Builder) AddHost(h HostResult) {
+	if b.phase != nil {
+		b.phase.Hosts = append(b.phase.Hosts, h)
+	}
+}
+
+// AddStressResult 为指定 IP 添加压力测试结果
+func (b *Builder) AddStressResult(ip string, sr StressResult) {
+	if b.phase == nil {
+		return
+	}
+	for i := range b.phase.Hosts {
+		if b.phase.Hosts[i].IP == ip {
+			b.phase.Hosts[i].Stress = append(b.phase.Hosts[i].Stress, sr)
+			return
+		}
+	}
+}
+
+// EndPhase 结束当前阶段，设置状态和摘要
+func (b *Builder) EndPhase(summary string) {
+	if b.phase == nil {
+		return
+	}
+	b.phase.Summary = summary
+
+	total := len(b.phase.Hosts)
+	success := 0
+	for _, h := range b.phase.Hosts {
+		switch b.phase.Phase {
+		case "设备发现":
+			if h.Alive {
+				success++
+			}
+		case "SSH 登录":
+			if h.SSHLogin {
+				success++
+			}
+		case "压力测试":
+			if len(h.Stress) > 0 {
+				success++
+			}
+		}
+	}
+
+	switch {
+	case success == total:
+		b.phase.Status = "success"
+	case success > 0:
+		b.phase.Status = "partial"
+	default:
+		b.phase.Status = "failed"
+	}
+
+	b.report.Phases = append(b.report.Phases, *b.phase)
+	b.phase = nil
+}
+
+// Build 生成最终报告
+func (b *Builder) Build() *Report {
+	b.report.EndTime = time.Now()
+	b.report.Duration = b.report.EndTime.Sub(b.report.StartTime).Round(time.Millisecond).String()
+	return b.report
+}
+
+// ============================
+// 输出格式化
+// ============================
+
+// ToText 输出纯文本报告
+func (r *Report) ToText() string {
+	var sb strings.Builder
+
+	sb.WriteString("╔══════════════════════════════════════════════╗\n")
+	sb.WriteString("║            auto-check 检测报告               ║\n")
+	sb.WriteString("╚══════════════════════════════════════════════╝\n\n")
+
+	sb.WriteString(fmt.Sprintf("  生成时间: %s\n", r.StartTime.Format("2006-01-02 15:04:05")))
+	sb.WriteString(fmt.Sprintf("  总耗时:   %s\n\n", r.Duration))
+
+	// 配置摘要
+	sb.WriteString("── 配置摘要 ──\n")
+	sb.WriteString(fmt.Sprintf("  网段:       %s\n", r.Config.CIDR))
+	sb.WriteString(fmt.Sprintf("  SSH端口:    %d\n", r.Config.Port))
+	sb.WriteString(fmt.Sprintf("  SSH用户:    %s\n", r.Config.User))
+	sb.WriteString(fmt.Sprintf("  并发数:     %d\n", r.Config.Concurrency))
+	if r.Config.StressTypes != "" {
+		sb.WriteString(fmt.Sprintf("  压测类型:   %s\n", r.Config.StressTypes))
+	}
+	sb.WriteString("\n")
+
+	// 各阶段结果
+	for _, phase := range r.Phases {
+		statusIcon := "✅"
+		switch phase.Status {
+		case "partial":
+			statusIcon = "⚠️"
+		case "failed":
+			statusIcon = "❌"
+		}
+
+		sb.WriteString(fmt.Sprintf("══ %s %s ══\n", phase.Phase, statusIcon))
+		sb.WriteString(fmt.Sprintf("  %s\n\n", phase.Summary))
+
+		if phase.Phase == "设备发现" || phase.Phase == "SSH 登录" {
+			for _, h := range phase.Hosts {
+				if phase.Phase == "设备发现" && !h.Alive {
+					continue
+				}
+				if phase.Phase == "SSH 登录" && !h.SSHLogin {
+					sb.WriteString(fmt.Sprintf("  ✗ %-15s  %s\n", h.IP, h.SSHErr))
+					continue
+				}
+				icon := "✓"
+				if phase.Phase == "SSH 登录" {
+					icon = "✓"
+				}
+				sb.WriteString(fmt.Sprintf("  %s %-15s\n", icon, h.IP))
+			}
+		}
+
+		if phase.Phase == "压力测试" {
+			for _, h := range phase.Hosts {
+				if len(h.Stress) == 0 {
+					continue
+				}
+				sb.WriteString(fmt.Sprintf("  ┌─ %s\n", h.IP))
+				for _, s := range h.Stress {
+					icon := "✓"
+					if s.Status != "pass" {
+						icon = "✗"
+					}
+					sb.WriteString(fmt.Sprintf("  │ %s %-10s  耗时: %s\n", icon, s.Type, s.Duration))
+					if s.Error != "" {
+						sb.WriteString(fmt.Sprintf("  │   错误: %s\n", s.Error))
+					}
+				}
+				sb.WriteString("  └──────────────\n")
+			}
+		}
+		sb.WriteString("\n")
+	}
+
+	return sb.String()
+}
+
+// ToJSON 输出 JSON 报告
+func (r *Report) ToJSON() (string, error) {
+	data, err := json.MarshalIndent(r, "", "  ")
+	if err != nil {
+		return "", err
+	}
+	return string(data), nil
+}
+
+// SaveFile 保存报告到文件
+func (r *Report) SaveFile(path string, format string) error {
+	dir := filepath.Dir(path)
+	if err := os.MkdirAll(dir, 0755); err != nil {
+		return fmt.Errorf("创建目录失败: %w", err)
+	}
+
+	var content string
+	switch format {
+	case "json":
+		var err error
+		content, err = r.ToJSON()
+		if err != nil {
+			return err
+		}
+	default:
+		content = r.ToText()
+	}
+
+	return os.WriteFile(path, []byte(content), 0644)
+}
+
+// DefaultReportPath 默认报告路径
+func DefaultReportPath() string {
+	timestamp := time.Now().Format("20060102-150405")
+	return filepath.Join(".", "reports", fmt.Sprintf("report-%s.txt", timestamp))
+}
diff --git a/auto-check/pkg/sshclient/sshclient.go b/auto-check/pkg/sshclient/sshclient.go
new file mode 100644
index 0000000..e0b6f1c
--- /dev/null
+++ b/auto-check/pkg/sshclient/sshclient.go
@@ -0,0 +1,93 @@
+package sshclient
+
+import (
+	"fmt"
+	"os"
+	"time"
+
+	"golang.org/x/crypto/ssh"
+)
+
+// Client SSH 客户端封装
+type Client struct {
+	User     string
+	Password string
+	KeyFile  string
+	Port     int
+	Timeout  time.Duration
+}
+
+// NewClient 创建 SSH 客户端
+func NewClient(user, password, keyFile string, port int, timeout time.Duration) *Client {
+	return &Client{
+		User:     user,
+		Password: password,
+		KeyFile:  keyFile,
+		Port:     port,
+		Timeout:  timeout,
+	}
+}
+
+// Connect 尝试 SSH 连接，返回 SSH client
+func (c *Client) Connect(ip string) (*ssh.Client, error) {
+	config, err := c.buildConfig()
+	if err != nil {
+		return nil, fmt.Errorf("SSH 配置构建失败: %w", err)
+	}
+
+	addr := fmt.Sprintf("%s:%d", ip, c.Port)
+	client, err := ssh.Dial("tcp", addr, config)
+	if err != nil {
+		return nil, fmt.Errorf("SSH 连接 %s 失败: %w", addr, err)
+	}
+	return client, nil
+}
+
+// RunCommand 在远程主机执行命令，返回输出
+func (c *Client) RunCommand(client *ssh.Client, command string) (string, error) {
+	session, err := client.NewSession()
+	if err != nil {
+		return "", fmt.Errorf("创建会话失败: %w", err)
+	}
+	defer session.Close()
+
+	out, err := session.CombinedOutput(command)
+	if err != nil {
+		return string(out), fmt.Errorf("命令执行失败: %w, 输出: %s", err, string(out))
+	}
+	return string(out), nil
+}
+
+// buildConfig 构建 SSH 认证配置
+func (c *Client) buildConfig() (*ssh.ClientConfig, error) {
+	var authMethods []ssh.AuthMethod
+
+	// 密码认证
+	if c.Password != "" {
+		authMethods = append(authMethods, ssh.Password(c.Password))
+	}
+
+	// 密钥认证
+	if c.KeyFile != "" {
+		key, err := os.ReadFile(c.KeyFile)
+		if err != nil {
+			return nil, fmt.Errorf("读取密钥文件失败: %w", err)
+		}
+		signer, err := ssh.ParsePrivateKey(key)
+		if err != nil {
+			return nil, fmt.Errorf("解析私钥失败: %w", err)
+		}
+		authMethods = append(authMethods, ssh.PublicKeys(signer))
+	}
+
+	if len(authMethods) == 0 {
+		return nil, fmt.Errorf("未提供认证方式（密码或密钥）")
+	}
+
+	return &ssh.ClientConfig{
+		User:            c.User,
+		Auth:            authMethods,
+		HostKeyCallback: ssh.InsecureIgnoreHostKey(),
+		Timeout:         c.Timeout,
+	}, nil
+}
diff --git a/auto-check/pkg/stress/runner.go b/auto-check/pkg/stress/runner.go
new file mode 100644
index 0000000..e36d3d3
--- /dev/null
+++ b/auto-check/pkg/stress/runner.go
@@ -0,0 +1,141 @@
+package stress
+
+import (
+	"fmt"
+	"strings"
+	"time"
+
+	"golang.org/x/crypto/ssh"
+)
+
+// Runner 压力测试调度器
+type Runner struct {
+	Config  Config
+	Types   []TestType
+	Executor Executor
+}
+
+// NewRunner 创建调度器
+func NewRunner(cfg Config, types []TestType, executor Executor) *Runner {
+	return &Runner{
+		Config:  cfg,
+		Types:   types,
+		Executor: executor,
+	}
+}
+
+// Run 执行压力测试（单台主机）
+func (r *Runner) Run(client *ssh.Client, ip string) *Report {
+	report := &Report{IP: ip, StartTime: time.Now()}
+	fmt.Printf("\n════════ [%s] 压力测试开始 ════════\n", ip)
+
+	// 系统信息探测
+	info := ProbeSystem(client, r.Executor)
+	fmt.Printf("  主机: %s | CPU: %s (%s核) | 内存: %s | 内核: %s\n",
+		info.Hostname, info.CPUModel, info.CPUCores, info.MemTotal, info.KernelVer)
+
+	// 启动温度监控
+	tempMon := NewTempMonitor(client, r.Executor, r.Config.TempLogInt)
+	tempMon.Start()
+
+	// 启动 dmesg 监控
+	dmesgMon := NewDmesgMonitor(client, r.Executor)
+	dmesgMon.Start()
+
+	// 逐项执行测试
+	for _, t := range r.Types {
+		fmt.Printf("\n  ── 开始: %s ──\n", t)
+		var res Result
+
+		switch t {
+		case TestCPU:
+			res = CPUStress(client, r.Executor, r.Config)
+		case TestMemory:
+			res = MemoryStress(client, r.Executor, r.Config)
+		case TestDiskIO:
+			res = DiskIOStress(client, r.Executor, r.Config)
+		case TestMemNative:
+			res = MemNativeStress(client, r.Executor, r.Config)
+		case TestFull:
+			res = FullStress(client, r.Executor, r.Config)
+		default:
+			res = Result{Type: t, Status: "skip", Error: fmt.Sprintf("未知测试类型: %s", t)}
+		}
+
+		report.AddResult(res)
+		fmt.Printf("  ── 完成: %s [%s] %s ──\n", t, res.Status, res.Duration.Round(time.Millisecond))
+	}
+
+	// 停止监控，收集结果
+	tempLogs := tempMon.Stop()
+	dmesgErrors := dmesgMon.Stop()
+
+	// 添加温度报告
+	if len(tempLogs) > 0 {
+		maxTemp := ""
+		for _, line := range tempLogs {
+			// 提取温度值
+			parts := strings.Fields(line)
+			for _, p := range parts {
+				if strings.HasSuffix(p, "°C") || strings.HasSuffix(p, "C") {
+					maxTemp = p
+				}
+			}
+		}
+		tempSummary := fmt.Sprintf("采样 %d 次", len(tempLogs))
+		if maxTemp != "" {
+			tempSummary += ", 最高温度: " + maxTemp
+		}
+		status := "pass"
+		if strings.Contains(strings.ToLower(strings.Join(tempLogs, " ")), "throttl") {
+			status = "fail"
+			tempSummary += " [检测到降频!]"
+		}
+		report.AddResult(Result{
+			Type:     MonitorTemp,
+			Status:   status,
+			Output:   tempSummary,
+			Duration: time.Since(report.StartTime),
+		})
+	}
+
+	// 添加 dmesg 报告
+	if len(dmesgErrors) > 0 {
+		report.AddResult(Result{
+			Type:     MonitorDmesg,
+			Status:   "fail",
+			Output:   fmt.Sprintf("检测到 %d 条硬件相关报错:\n%s", len(dmesgErrors), strings.Join(dmesgErrors[:min(10, len(dmesgErrors))], "\n")),
+			Duration: time.Since(report.StartTime),
+		})
+	} else {
+		report.AddResult(Result{
+			Type:     MonitorDmesg,
+			Status:   "pass",
+			Output:   "无硬件相关内核报错",
+			Duration: time.Since(report.StartTime),
+		})
+	}
+
+	report.EndTime = time.Now()
+	report.Duration = report.EndTime.Sub(report.StartTime)
+
+	fmt.Printf("\n════════ [%s] 压力测试完成 ════════\n", ip)
+	fmt.Println(report.ToText())
+	return report
+}
+
+// RunAll 对多台主机执行压力测试
+func (r *Runner) RunAll(clients map[string]*ssh.Client) []*Report {
+	var reports []*Report
+	for ip, client := range clients {
+		reports = append(reports, r.Run(client, ip))
+	}
+	return reports
+}
+
+func min(a, b int) int {
+	if a < b {
+		return a
+	}
+	return b
+}
diff --git a/auto-check/pkg/stress/runners.go b/auto-check/pkg/stress/runners.go
new file mode 100644
index 0000000..fd7248e
--- /dev/null
+++ b/auto-check/pkg/stress/runners.go
@@ -0,0 +1,168 @@
+package stress
+
+import (
+	"fmt"
+	"strings"
+	"time"
+
+	"golang.org/x/crypto/ssh"
+)
+
+// truncate 截断过长输出
+func truncate(s string, maxLen int) string {
+	s = strings.TrimSpace(s)
+	if len(s) > maxLen {
+		return s[:maxLen] + "\n  ... (输出已截断)"
+	}
+	return s
+}
+
+// ============================
+// stress-ng 压测
+// ============================
+
+// CPUStress stress-ng CPU 压力测试
+func CPUStress(client *ssh.Client, ex Executor, cfg Config) Result {
+	start := time.Now()
+	fmt.Printf("    [CPU] stress-ng CPU 压力 (%d线程, %v)...\n", cfg.Threads, cfg.Duration)
+
+	info, err := EnsureTool(client, ex, "stress-ng", "apt install stress-ng / opkg install stress-ng")
+	if err != nil {
+		return Result{Type: TestCPU, Status: "skip", Error: err.Error(), Duration: time.Since(start)}
+	}
+	fmt.Printf("    [CPU] 使用 %s (%s)\n", info.Path, info.Version)
+
+	cmd := fmt.Sprintf("%s --cpu %d --cpu-method all --timeout %v --metrics-brief --temp-path /tmp 2>&1",
+		info.Path, cfg.Threads, cfg.Duration)
+	out, err := exec(client, ex, cmd)
+	duration := time.Since(start)
+
+	if err != nil {
+		return Result{Type: TestCPU, Status: "error", Output: truncate(out, 600), Error: err.Error(), Duration: duration}
+	}
+	return Result{Type: TestCPU, Status: "pass", Output: truncate(out, 600), Duration: duration}
+}
+
+// MemoryStress stress-ng 内存压力测试
+func MemoryStress(client *ssh.Client, ex Executor, cfg Config) Result {
+	start := time.Now()
+	fmt.Printf("    [Memory] stress-ng 内存压力 (%d线程, %v)...\n", cfg.Threads, cfg.Duration)
+
+	info, err := EnsureTool(client, ex, "stress-ng", "apt install stress-ng / opkg install stress-ng")
+	if err != nil {
+		return Result{Type: TestMemory, Status: "skip", Error: err.Error(), Duration: time.Since(start)}
+	}
+
+	memWorkers := cfg.Threads
+	if memWorkers > 4 {
+		memWorkers = 4
+	}
+	cmd := fmt.Sprintf("%s --vm %d --vm-bytes 256M --vm-method all --timeout %v --metrics-brief 2>&1",
+		info.Path, memWorkers, cfg.Duration)
+	out, err := exec(client, ex, cmd)
+	duration := time.Since(start)
+
+	if err != nil {
+		return Result{Type: TestMemory, Status: "error", Output: truncate(out, 600), Error: err.Error(), Duration: duration}
+	}
+	return Result{Type: TestMemory, Status: "pass", Output: truncate(out, 600), Duration: duration}
+}
+
+// DiskIOStress stress-ng 磁盘IO压力测试
+func DiskIOStress(client *ssh.Client, ex Executor, cfg Config) Result {
+	start := time.Now()
+	fmt.Printf("    [DiskIO] stress-ng 磁盘IO压力 (%v)...\n", cfg.Duration)
+
+	info, err := EnsureTool(client, ex, "stress-ng", "apt install stress-ng / opkg install stress-ng")
+	if err != nil {
+		return Result{Type: TestDiskIO, Status: "skip", Error: err.Error(), Duration: time.Since(start)}
+	}
+
+	testDir := cfg.DiskDir
+	if testDir == "" {
+		testDir = "/tmp/stress-disk-test"
+	}
+	_, _ = exec(client, ex, fmt.Sprintf("mkdir -p %s", testDir))
+
+	cmd := fmt.Sprintf("%s --iomix 2 --iomix-bytes %dM --timeout %v --metrics-brief 2>&1",
+		info.Path, cfg.DiskSizeMB, cfg.Duration)
+	out, err := exec(client, ex, cmd)
+	duration := time.Since(start)
+
+	_, _ = exec(client, ex, fmt.Sprintf("rm -rf %s", testDir))
+
+	if err != nil {
+		return Result{Type: TestDiskIO, Status: "error", Output: truncate(out, 600), Error: err.Error(), Duration: duration}
+	}
+	return Result{Type: TestDiskIO, Status: "pass", Output: truncate(out, 600), Duration: duration}
+}
+
+// ============================
+// stressapptest 内存精压
+// ============================
+
+// MemNativeStress stressapptest 内存稳定性精压
+func MemNativeStress(client *ssh.Client, ex Executor, cfg Config) Result {
+	start := time.Now()
+	fmt.Printf("    [MemNative] stressapptest 内存精压 (%v)...\n", cfg.Duration)
+
+	info, err := EnsureTool(client, ex, "stressapptest", "apt install stressapptest / opkg install stressapptest")
+	if err != nil {
+		return Result{Type: TestMemNative, Status: "skip", Error: err.Error(), Duration: time.Since(start)}
+	}
+	fmt.Printf("    [MemNative] 使用 %s\n", info.Path)
+
+	memSize := cfg.MemSizeMB
+	if memSize <= 0 {
+		out, _ := exec(client, ex, "free -m 2>/dev/null | awk '/Mem:/{print int($7*0.6)}'")
+		out = strings.TrimSpace(out)
+		if out != "" {
+			fmt.Sscanf(out, "%d", &memSize)
+		}
+		if memSize <= 0 {
+			memSize = 512
+		}
+	}
+
+	cmd := fmt.Sprintf("%s -s %d -M %d -f 0 -v 2>&1",
+		info.Path, int(cfg.Duration.Seconds()), memSize)
+	out, err := exec(client, ex, cmd)
+	duration := time.Since(start)
+
+	output := truncate(out, 800)
+	if strings.Contains(strings.ToUpper(output), "PASS") {
+		return Result{Type: TestMemNative, Status: "pass", Output: output, Duration: duration}
+	}
+	if strings.Contains(strings.ToUpper(output), "FAIL") {
+		return Result{Type: TestMemNative, Status: "fail", Output: output, Duration: duration}
+	}
+	if err != nil {
+		return Result{Type: TestMemNative, Status: "error", Output: output, Error: err.Error(), Duration: duration}
+	}
+	return Result{Type: TestMemNative, Status: "pass", Output: output, Duration: duration}
+}
+
+// ============================
+// 综合压测
+// ============================
+
+// FullStress 三合一综合压测 (CPU + 内存 + 磁盘IO 同时进行)
+func FullStress(client *ssh.Client, ex Executor, cfg Config) Result {
+	start := time.Now()
+	fmt.Printf("    [Full] 三合一综合压测 (CPU %d线程 + 内存 + 磁盘IO, %v)...\n", cfg.Threads, cfg.Duration)
+
+	info, err := EnsureTool(client, ex, "stress-ng", "apt install stress-ng / opkg install stress-ng")
+	if err != nil {
+		return Result{Type: TestFull, Status: "skip", Error: err.Error(), Duration: time.Since(start)}
+	}
+
+	cmd := fmt.Sprintf("%s --cpu %d --vm 2 --vm-bytes 128M --iomix 1 --iomix-bytes 256M --timeout %v --metrics-brief 2>&1",
+		info.Path, cfg.Threads, cfg.Duration)
+	out, err := exec(client, ex, cmd)
+	duration := time.Since(start)
+
+	if err != nil {
+		return Result{Type: TestFull, Status: "error", Output: truncate(out, 600), Error: err.Error(), Duration: duration}
+	}
+	return Result{Type: TestFull, Status: "pass", Output: truncate(out, 600), Duration: duration}
+}
diff --git a/auto-check/pkg/stress/tools.go b/auto-check/pkg/stress/tools.go
new file mode 100644
index 0000000..096eecd
--- /dev/null
+++ b/auto-check/pkg/stress/tools.go
@@ -0,0 +1,269 @@
+package stress
+
+import (
+	"fmt"
+	"strings"
+	"time"
+
+	"golang.org/x/crypto/ssh"
+)
+
+// ============================
+// 远程命令执行接口
+// ============================
+
+// Executor 远程命令执行器
+type Executor interface {
+	RunCommand(client *ssh.Client, command string) (string, error)
+}
+
+// exec 执行远程命令（带超时）
+func exec(client *ssh.Client, executor Executor, cmd string) (string, error) {
+	return executor.RunCommand(client, cmd)
+}
+
+// execf 格式化执行
+func execf(client *ssh.Client, executor Executor, format string, args ...interface{}) (string, error) {
+	return exec(client, executor, fmt.Sprintf(format, args...))
+}
+
+// ============================
+// 工具检测
+// ============================
+
+// ToolInfo 远程工具信息
+type ToolInfo struct {
+	Available bool
+	Path      string
+	Version   string
+}
+
+// DetectTool 检测远程工具是否可用
+func DetectTool(client *ssh.Client, executor Executor, name string) ToolInfo {
+	// 检查路径
+	out, err := execf(client, executor, "which %s 2>/dev/null", name)
+	path := strings.TrimSpace(out)
+	if err != nil || path == "" {
+		return ToolInfo{Available: false}
+	}
+
+	// 获取版本
+	var version string
+	switch name {
+	case "stress-ng":
+		out, _ = execf(client, executor, "%s --version 2>&1 | head -1", path)
+		version = strings.TrimSpace(out)
+	case "stressapptest":
+		out, _ = execf(client, executor, "%s --help 2>&1 | head -1", path)
+		version = strings.TrimSpace(out)
+	case "lm-sensors":
+		out, _ = execf(client, executor, "%s -v 2>&1 | head -1", path)
+		version = strings.TrimSpace(out)
+	}
+
+	return ToolInfo{Available: true, Path: path, Version: version}
+}
+
+// EnsureTool 检测工具，不可用则返回错误提示
+func EnsureTool(client *ssh.Client, executor Executor, name string, installHint string) (ToolInfo, error) {
+	info := DetectTool(client, executor, name)
+	if !info.Available {
+		return info, fmt.Errorf("%s 未安装。安装方式: %s", name, installHint)
+	}
+	return info, nil
+}
+
+// ============================
+// 环境探测
+// ============================
+
+// SystemInfo 系统基础信息
+type SystemInfo struct {
+	Hostname  string
+	CPUModel  string
+	CPUCores  string
+	MemTotal  string
+	KernelVer string
+	DiskInfo  string
+}
+
+// ProbeSystem 探测远程系统基础信息
+func ProbeSystem(client *ssh.Client, executor Executor) SystemInfo {
+	info := SystemInfo{}
+
+	out, _ := exec(client, executor, "hostname 2>/dev/null")
+	info.Hostname = strings.TrimSpace(out)
+
+	out, _ = exec(client, executor, "lscpu 2>/dev/null | grep 'Model name' | sed 's/Model name:\\s*//'")
+	info.CPUModel = strings.TrimSpace(out)
+
+	out, _ = exec(client, executor, "nproc 2>/dev/null")
+	info.CPUCores = strings.TrimSpace(out)
+
+	out, _ = exec(client, executor, "free -h 2>/dev/null | awk '/Mem:/{print $2}'")
+	info.MemTotal = strings.TrimSpace(out)
+
+	out, _ = exec(client, executor, "uname -r 2>/dev/null")
+	info.KernelVer = strings.TrimSpace(out)
+
+	out, _ = exec(client, executor, "lsblk -d -o NAME,SIZE,TYPE 2>/dev/null | head -5")
+	info.DiskInfo = strings.TrimSpace(out)
+
+	return info
+}
+
+// ============================
+// 温度监控
+// ============================
+
+// TempMonitor 温度监控器
+type TempMonitor struct {
+	client   *ssh.Client
+	executor Executor
+	interval time.Duration
+	stopCh   chan struct{}
+	logs     []string
+}
+
+// NewTempMonitor 创建温度监控器
+func NewTempMonitor(client *ssh.Client, executor Executor, interval time.Duration) *TempMonitor {
+	if interval <= 0 {
+		interval = 10 * time.Second
+	}
+	return &TempMonitor{
+		client:   client,
+		executor: executor,
+		interval: interval,
+		stopCh:   make(chan struct{}),
+	}
+}
+
+// Start 后台启动温度监控
+func (m *TempMonitor) Start() {
+	go m.loop()
+}
+
+// Stop 停止监控并返回所有采样
+func (m *TempMonitor) Stop() []string {
+	close(m.stopCh)
+	return m.logs
+}
+
+func (m *TempMonitor) loop() {
+	ticker := time.NewTicker(m.interval)
+	defer ticker.Stop()
+
+	// 初始温度
+	m.sample()
+
+	for {
+		select {
+		case <-m.stopCh:
+			return
+		case <-ticker.C:
+			m.sample()
+		}
+	}
+}
+
+func (m *TempMonitor) sample() {
+	// 尝试 sensors
+	out, err := execf(m.client, m.executor, "sensors 2>/dev/null | grep -i 'temp\\|core\\|cpu' | head -10")
+	if err == nil && strings.TrimSpace(out) != "" {
+		ts := time.Now().Format("15:04:05")
+		for _, line := range strings.Split(out, "\n") {
+			line = strings.TrimSpace(line)
+			if line != "" {
+				m.logs = append(m.logs, fmt.Sprintf("[%s] %s", ts, line))
+			}
+		}
+		return
+	}
+
+	// 回退: 读 sysfs
+	out, _ = execf(m.client, m.executor, `cat /sys/class/thermal/thermal_zone*/temp 2>/dev/null | while read t; do echo "$((t/1000))°C"; done`)
+	if strings.TrimSpace(out) != "" {
+		ts := time.Now().Format("15:04:05")
+		m.logs = append(m.logs, fmt.Sprintf("[%s] %s", ts, strings.TrimSpace(out)))
+	}
+}
+
+// ============================
+// dmesg 监控
+// ============================
+
+// DmesgMonitor 内核日志监控
+type DmesgMonitor struct {
+	client   *ssh.Client
+	executor Executor
+	stopCh   chan struct{}
+	baseline string // 启动时的 dmesg 行数
+	logs     []string
+}
+
+// NewDmesgMonitor 创建 dmesg 监控器
+func NewDmesgMonitor(client *ssh.Client, executor Executor) *DmesgMonitor {
+	return &DmesgMonitor{
+		client:   client,
+		executor: executor,
+		stopCh:   make(chan struct{}),
+	}
+}
+
+// Start 记录基线，后台监控
+func (m *DmesgMonitor) Start() {
+	out, _ := exec(m.client, m.executor, "dmesg 2>/dev/null | wc -l")
+	m.baseline = strings.TrimSpace(out)
+	go m.loop()
+}
+
+// Stop 停止监控，返回新增的硬件报错
+func (m *DmesgMonitor) Stop() []string {
+	close(m.stopCh)
+
+	// 获取新增的 dmesg 日志中的硬件错误
+	out, _ := execf(m.client, m.executor,
+		`dmesg --level=err,crit,alert,emerg 2>/dev/null | tail -30`)
+	if strings.TrimSpace(out) != "" {
+		m.logs = append(m.logs, strings.Split(out, "\n")...)
+	}
+
+	// 过滤硬件相关关键词
+	var hwErrors []string
+	keywords := []string{"error", "fail", "fault", "warn", "critical", "oom", "panic", "hardware", "thermal", "throttl"}
+	for _, line := range m.logs {
+		lower := strings.ToLower(line)
+		for _, kw := range keywords {
+			if strings.Contains(lower, kw) {
+				hwErrors = append(hwErrors, strings.TrimSpace(line))
+				break
+			}
+		}
+	}
+	return hwErrors
+}
+
+func (m *DmesgMonitor) loop() {
+	ticker := time.NewTicker(5 * time.Second)
+	defer ticker.Stop()
+
+	for {
+		select {
+		case <-m.stopCh:
+			return
+		case <-ticker.C:
+			// 周期性检查是否有新的硬件相关日志（轻量级）
+			out, _ := execf(m.client, m.executor,
+				`dmesg --level=err,crit 2>/dev/null | tail -3`)
+			if strings.TrimSpace(out) != "" {
+				ts := time.Now().Format("15:04:05")
+				for _, line := range strings.Split(out, "\n") {
+					line = strings.TrimSpace(line)
+					if line != "" {
+						m.logs = append(m.logs, fmt.Sprintf("[%s] %s", ts, line))
+					}
+				}
+			}
+		}
+	}
+}
diff --git a/auto-check/pkg/stress/types.go b/auto-check/pkg/stress/types.go
new file mode 100644
index 0000000..36a67f4
--- /dev/null
+++ b/auto-check/pkg/stress/types.go
@@ -0,0 +1,139 @@
+package stress
+
+import (
+	"fmt"
+	"strings"
+	"time"
+)
+
+// ============================
+// 测试类型定义
+// ============================
+
+// TestType 压力测试类型
+type TestType string
+
+const (
+	// 单项压测
+	TestCPU       TestType = "cpu"       // stress-ng CPU 压力
+	TestMemory    TestType = "memory"    // stress-ng 内存压力
+	TestDiskIO    TestType = "disk"      // stress-ng 磁盘IO压力
+	TestMemNative TestType = "memnative" // stressapptest 内存精压
+
+	// 综合压测
+	TestFull TestType = "full" // CPU+内存+磁盘IO 三合一
+
+	// 监控（自动附加）
+	MonitorTemp   TestType = "temp"   // lm-sensors 温度监控
+	MonitorDmesg  TestType = "dmesg"  // dmesg 内核报错监控
+)
+
+// ============================
+// 配置
+// ============================
+
+// Config 压力测试配置
+type Config struct {
+	Duration    time.Duration // 总持续时间
+	Threads     int           // CPU/内存线程数
+	MemSizeMB   int           // 内存测试大小 (MB)，0=自动(可用60%)
+	DiskSizeMB  int           // 磁盘测试大小 (MB)，0=默认1024
+	DiskDir     string        // 磁盘测试目录，空=自动临时目录
+	TempLogInt  time.Duration // 温度采样间隔，0=10s
+}
+
+// DefaultConfig 默认配置
+func DefaultConfig() Config {
+	return Config{
+		Duration:   30 * time.Second,
+		Threads:    4,
+		MemSizeMB:  0, // 自动
+		DiskSizeMB: 1024,
+		DiskDir:    "",
+		TempLogInt: 10 * time.Second,
+	}
+}
+
+// ============================
+// 单项测试结果
+// ============================
+
+// Result 单项测试结果
+type Result struct {
+	Type     TestType
+	Status   string // "pass" / "fail" / "skip" / "error"
+	Output   string // 工具输出摘要
+	Error    string // 错误信息
+	Duration time.Duration
+}
+
+// ============================
+// 完整测试报告
+// ============================
+
+// Report 一次完整压测的报告
+type Report struct {
+	IP        string
+	StartTime time.Time
+	EndTime   time.Time
+	Duration  time.Duration
+	Results   []Result
+	Passed    int
+	Failed    int
+	Skipped   int
+	Errors    int
+}
+
+// AddResult 添加测试结果
+func (r *Report) AddResult(res Result) {
+	r.Results = append(r.Results, res)
+	switch res.Status {
+	case "pass":
+		r.Passed++
+	case "fail":
+		r.Failed++
+	case "skip":
+		r.Skipped++
+	case "error":
+		r.Errors++
+	}
+}
+
+// Summary 汇总信息
+func (r *Report) Summary() string {
+	return fmt.Sprintf("共 %d 项: %d 通过, %d 失败, %d 跳过, %d 错误",
+		len(r.Results), r.Passed, r.Failed, r.Skipped, r.Errors)
+}
+
+// ToText 文本格式报告
+func (r *Report) ToText() string {
+	var sb strings.Builder
+	sb.WriteString(fmt.Sprintf("══ [%s] 压力测试报告 ══\n", r.IP))
+	sb.WriteString(fmt.Sprintf("  耗时: %s\n\n", r.Duration.Round(time.Millisecond)))
+
+	for _, res := range r.Results {
+		icon := "✓"
+		switch res.Status {
+		case "fail":
+			icon = "✗"
+		case "skip":
+			icon = "⊘"
+		case "error":
+			icon = "⚠"
+		}
+		sb.WriteString(fmt.Sprintf("  %s %-12s  %s\n", icon, res.Type, res.Status))
+		if res.Output != "" {
+			for _, line := range strings.Split(res.Output, "\n") {
+				if strings.TrimSpace(line) != "" {
+					sb.WriteString(fmt.Sprintf("      %s\n", line))
+				}
+			}
+		}
+		if res.Error != "" {
+			sb.WriteString(fmt.Sprintf("      错误: %s\n", res.Error))
+		}
+	}
+
+	sb.WriteString(fmt.Sprintf("\n  %s\n", r.Summary()))
+	return sb.String()
+}
diff --git a/auto-check/pkg/workflow/loop.go b/auto-check/pkg/workflow/loop.go
new file mode 100644
index 0000000..1f7bb84
--- /dev/null
+++ b/auto-check/pkg/workflow/loop.go
@@ -0,0 +1,279 @@
+package workflow
+
+import (
+	"fmt"
+	"strings"
+	"time"
+
+	"auto-check/pkg/discovery"
+	"auto-check/pkg/report"
+	"auto-check/pkg/sshclient"
+	"auto-check/pkg/stress"
+)
+
+// ============================
+// 状态常量
+// ============================
+
+const (
+	StatusUntested = "untested" // 未测试
+	StatusPass     = "pass"     // 通过
+	StatusFail     = "fail"     // 失败
+)
+
+// ============================
+// 设备（MAC 为唯一标识）
+// ============================
+
+// Device 设备信息
+type Device struct {
+	MAC  string
+	IP   string
+	Host discovery.Host
+}
+
+// ============================
+// 永久循环工作流
+// ============================
+
+// Loop 永久循环：每间隔执行一轮
+// 每轮: 扫描设备 → 增量测试 → 打印状态变化
+func Loop(ctx *Context) error {
+	interval := ctx.Config.Workflow.Interval
+	if interval <= 0 {
+		interval = 10 * time.Second
+	}
+
+	fmt.Printf("══ 工作流启动（永久循环，间隔 %v，设备以 MAC 唯一标识）══\n\n", interval)
+
+	// 第一轮立即执行
+	round(ctx)
+
+	ticker := time.NewTicker(interval)
+	defer ticker.Stop()
+
+	for {
+		select {
+		case <-ctx.Done():
+			fmt.Println("══ 工作流已停止 ══")
+			return nil
+		case <-ticker.C:
+			round(ctx)
+		}
+	}
+}
+
+// round 执行一轮
+func round(ctx *Context) {
+	now := time.Now().Format("15:04:05")
+	fmt.Printf("════ 轮次开始 [%s] ════\n", now)
+
+	// ── 1. 扫描设备，更新设备列表 map（MAC 为 key）──
+	scanDevices(ctx)
+
+	// ── 2. 遍历设备: 结果为空或失败 → 开始测试，保存报告和结果 ──
+	testPending(ctx)
+
+	// ── 3. 遍历打印: 状态变化才重新打印 ──
+	printStatus(ctx)
+}
+
+// scanDevices 扫描并更新设备列表
+// 设备身份 = MAC；IP 变化视为同一设备（更新 IP），IP 被复用则移除旧设备
+func scanDevices(ctx *Context) {
+	scanner := discovery.NewScanner(
+		ctx.Config.Scan.CIDR,
+		ctx.Config.SSH.Port,
+		ctx.Config.Scan.Timeout,
+		ctx.Config.Scan.Concurrency,
+	)
+	hosts := scanner.Scan()
+
+	// 本轮扫描到的 IP → MAC 映射
+	ipToMAC := make(map[string]string, len(hosts))
+	for _, h := range hosts {
+		ipToMAC[h.IP.String()] = h.MAC
+	}
+
+	// 1. 处理 IP 被复用：旧设备的 IP 现在属于不同 MAC → 移除
+	for mac, dev := range ctx.Devices {
+		if newMAC, ok := ipToMAC[dev.IP]; ok && newMAC != mac {
+			delete(ctx.Devices, mac)
+			delete(ctx.Results, mac)
+			delete(ctx.Printed, mac)
+			fmt.Printf("  [-] IP 复用: %s 现属于 %s，移除旧设备 %s\n", dev.IP, newMAC, mac)
+		}
+	}
+
+	// 2. 合并扫描结果
+	added, updated := 0, 0
+	for _, h := range hosts {
+		mac := h.MAC
+		ip := h.IP.String()
+		if mac == "" {
+			// 无法获取 MAC：降级用 IP 做 key，标记为临时
+			mac = "tmp:" + ip
+		}
+
+		if dev, ok := ctx.Devices[mac]; ok {
+			// 已存在：仅更新 IP（设备可能换了地址）
+			if dev.IP != ip {
+				dev.IP = ip
+				dev.Host = h
+				updated++
+			}
+		} else {
+			// 新设备
+			ctx.Devices[mac] = &Device{MAC: mac, IP: ip, Host: h}
+			added++
+		}
+	}
+
+	fmt.Printf("  [扫描] 设备 %d 台（新增 %d，IP更新 %d）\n", len(ctx.Devices), added, updated)
+}
+
+// testPending 对未测试或失败设备执行测试
+func testPending(ctx *Context) {
+	for mac, dev := range ctx.Devices {
+		// 跳过: 已有结果且通过
+		if rpt, ok := ctx.Results[mac]; ok && rpt != nil && rpt.Failed == 0 && rpt.Errors == 0 {
+			continue
+		}
+
+		// 需要测试（结果为空 或 失败）
+		fmt.Printf("  [测试] %s (%s) 开始压测...\n", dev.IP, dev.MAC)
+		rpt := testDevice(ctx, dev.IP)
+		ctx.Results[mac] = rpt
+
+		// 保存测试报告
+		saveDeviceReport(dev, rpt, ctx.Config.Report.Path)
+	}
+}
+
+// testDevice 对单台设备执行 SSH 登录 + 压力测试
+func testDevice(ctx *Context, ip string) *stress.Report {
+	cfg := ctx.Config
+
+	// SSH 连接
+	client := sshclient.NewClient(
+		cfg.SSH.User, cfg.SSH.Password, cfg.SSH.KeyFile,
+		cfg.SSH.Port, cfg.Scan.Timeout,
+	)
+	conn, err := client.Connect(ip)
+	if err != nil {
+		fmt.Printf("  [测试] %s SSH 连接失败: %v\n", ip, err)
+		return &stress.Report{
+			IP:        ip,
+			StartTime: time.Now(),
+			Results: []stress.Result{{
+				Type:   "ssh",
+				Status: "fail",
+				Error:  err.Error(),
+			}},
+			Failed: 1,
+		}
+	}
+	defer conn.Close()
+
+	// 执行压力测试
+	runner := stress.NewRunner(
+		stress.Config{
+			Duration:   cfg.Stress.Duration,
+			Threads:    cfg.Stress.Threads,
+			DiskSizeMB: 1024,
+			TempLogInt: 10 * time.Second,
+		},
+		mapStressTypes(cfg.Stress.Types),
+		client,
+	)
+	return runner.Run(conn, ip)
+}
+
+// printStatus 打印状态变化（仅当首次或状态变化时）
+func printStatus(ctx *Context) {
+	for mac, rpt := range ctx.Results {
+		dev := ctx.Devices[mac]
+		label := devLabel(dev)
+		status := statusOf(rpt)
+		// 上次状态为空 或 与当前不一致 → 打印并记录
+		if prev, ok := ctx.Printed[mac]; !ok || prev != status {
+			icon := map[string]string{
+				StatusPass: "✓",
+				StatusFail: "✗",
+			}[status]
+			fmt.Printf("  [状态] %s %s → %s\n", label, icon, status)
+			ctx.Printed[mac] = status
+		}
+	}
+
+	// 未测试设备（无结果）: 首次打印一次 untested
+	for mac, dev := range ctx.Devices {
+		if _, hasResult := ctx.Results[mac]; !hasResult {
+			if _, printed := ctx.Printed[mac]; !printed {
+				fmt.Printf("  [状态] %s ○ → %s\n", devLabel(dev), StatusUntested)
+				ctx.Printed[mac] = StatusUntested
+			}
+		}
+	}
+}
+
+// devLabel 设备显示名: MAC (IP)
+func devLabel(dev *Device) string {
+	if dev == nil {
+		return "?"
+	}
+	if strings.HasPrefix(dev.MAC, "tmp:") {
+		return dev.IP + " (无MAC)"
+	}
+	return fmt.Sprintf("%s (%s)", dev.MAC, dev.IP)
+}
+
+// mapStressTypes 逗号分隔字符串 → TestType 列表
+func mapStressTypes(s string) []stress.TestType {
+	var types []stress.TestType
+	for _, t := range strings.Split(s, ",") {
+		t = strings.TrimSpace(t)
+		types = append(types, stress.TestType(t))
+	}
+	return types
+}
+
+// statusOf 从测试报告得出状态
+func statusOf(rpt *stress.Report) string {
+	if rpt == nil {
+		return StatusUntested
+	}
+	if rpt.Failed > 0 || rpt.Errors > 0 {
+		return StatusFail
+	}
+	return StatusPass
+}
+
+// saveDeviceReport 保存单台设备的测试报告（文件名含 MAC 和 IP）
+func saveDeviceReport(dev *Device, rpt *stress.Report, dir string) {
+	if dir == "" {
+		dir = "reports"
+	}
+	ts := time.Now().Format("20060102-150405")
+	name := strings.ReplaceAll(dev.MAC, ":", "")
+	path := fmt.Sprintf("%s/report-%s-%s-%s.txt", strings.TrimRight(dir, "/"), name, dev.IP, ts)
+
+	r := report.NewBuilder(report.ConfigSummary{})
+	r.StartPhase("压力测试")
+	for _, res := range rpt.Results {
+		r.AddStressResult(dev.IP, report.StressResult{
+			Type:     string(res.Type),
+			Status:   res.Status,
+			Duration: res.Duration.String(),
+			Error:    res.Error,
+			Output:   res.Output,
+		})
+	}
+	r.EndPhase(rpt.Summary())
+
+	if err := r.Build().SaveFile(path, "text"); err != nil {
+		fmt.Printf("  [报告] %s 保存失败: %v\n", dev.IP, err)
+	} else {
+		fmt.Printf("  [报告] %s 已保存: %s\n", dev.IP, path)
+	}
+}
diff --git a/auto-check/pkg/workflow/workflow.go b/auto-check/pkg/workflow/workflow.go
new file mode 100644
index 0000000..46a5900
--- /dev/null
+++ b/auto-check/pkg/workflow/workflow.go
@@ -0,0 +1,166 @@
+package workflow
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"auto-check/pkg/config"
+	"auto-check/pkg/stress"
+)
+
+// ============================
+// Context — 阶段间共享数据
+// ============================
+
+// Context 工作流上下文，保存阶段间传递的数据
+type Context struct {
+	base context.Context // 可取消上下文
+
+	// 配置（由入口设置）
+	Config config.Config
+
+	// 循环模式下的状态数据（key 均为设备 MAC）
+	Devices map[string]*Device          // 设备列表（MAC → 设备）
+	Results map[string]*stress.Report  // 测试结果（nil/失败=需测试）
+	Printed map[string]string          // 上次打印的测试状态
+}
+
+// NewContext 创建上下文
+func NewContext() *Context {
+	return &Context{
+		base:    context.Background(),
+		Devices: make(map[string]*Device),
+		Results: make(map[string]*stress.Report),
+		Printed: make(map[string]string),
+	}
+}
+
+// WithCancel 支持取消
+func (c *Context) WithCancel() (context.CancelFunc, error) {
+	ctx, cancel := context.WithCancel(c.base)
+	c.base = ctx
+	return cancel, nil
+}
+
+// Done 返回取消信号
+func (c *Context) Done() <-chan struct{} {
+	return c.base.Done()
+}
+
+// Err 返回取消原因
+func (c *Context) Err() error {
+	return c.base.Err()
+}
+
+// ============================
+// Stage — 阶段接口
+// ============================
+
+// Stage 工作流阶段
+type Stage interface {
+	Name() string
+	Execute(ctx *Context) error
+}
+
+// ============================
+// Workflow — 流水线调度器
+// ============================
+
+// OnStageError 阶段失败处理策略
+type OnStageError int
+
+const (
+	// StopOnError 失败即中断整个工作流
+	StopOnError OnStageError = iota
+	// ContinueOnError 失败继续执行后续阶段
+	ContinueOnError
+)
+
+// StageResult 阶段执行结果
+type StageResult struct {
+	Stage    string
+	Start    time.Time
+	End      time.Time
+	Duration time.Duration
+	Err      error
+}
+
+// Workflow Pipeline 工作流
+type Workflow struct {
+	stages    []Stage
+	onError   OnStageError
+	results   []StageResult
+	startTime time.Time
+}
+
+// New 创建空工作流
+func New() *Workflow {
+	return &Workflow{
+		onError: StopOnError,
+	}
+}
+
+// SetOnError 设置失败策略
+func (w *Workflow) SetOnError(policy OnStageError) *Workflow {
+	w.onError = policy
+	return w
+}
+
+// AddStage 追加阶段（串行）
+func (w *Workflow) AddStage(stage Stage) *Workflow {
+	w.stages = append(w.stages, stage)
+	return w
+}
+
+// Run 依次执行所有阶段
+func (w *Workflow) Run(ctx *Context) error {
+	w.startTime = time.Now()
+	fmt.Printf("══ 工作流启动 (%d 个阶段) ══\n\n", len(w.stages))
+
+	for i, stage := range w.stages {
+		// 检查是否被取消
+		select {
+		case <-ctx.Done():
+			fmt.Printf("  [!] 工作流已取消，停止于阶段 %d/%d\n", i+1, len(w.stages))
+			return ctx.Err()
+		default:
+		}
+
+		fmt.Printf("════ 阶段 %d/%d: %s ════\n", i+1, len(w.stages), stage.Name())
+		start := time.Now()
+		err := stage.Execute(ctx)
+		duration := time.Since(start)
+
+		result := StageResult{
+			Stage:    stage.Name(),
+			Start:    start,
+			End:      time.Now(),
+			Duration: duration,
+			Err:      err,
+		}
+		w.results = append(w.results, result)
+
+		if err != nil {
+			fmt.Printf("  [✗] 阶段失败: %v\n", err)
+			switch w.onError {
+			case StopOnError:
+				fmt.Printf("══ 工作流中止（策略: 失败即停止）══\n")
+				return err
+			case ContinueOnError:
+				fmt.Printf("  [!] 继续执行后续阶段（策略: 失败继续）\n\n")
+				continue
+			}
+		} else {
+			fmt.Printf("  [✓] 阶段完成 (%v)\n\n", duration.Round(time.Millisecond))
+		}
+	}
+
+	fmt.Printf("══ 工作流完成，总耗时 %v ══\n", time.Since(w.startTime).Round(time.Millisecond))
+	return nil
+}
+
+// Results 阶段执行结果列表
+func (w *Workflow) Results() []StageResult {
+	return w.results
+}