diff --git a/dev-workflow/.gitignore b/dev-workflow/.gitignore
new file mode 100644
index 0000000..d55038a
--- /dev/null
+++ b/dev-workflow/.gitignore
@@ -0,0 +1,41 @@
+# 统计数据文件
+stats.json
+*.json.bak
+
+# Python
+__pycache__/
+*.py[cod]
+*$py.class
+*.so
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+
+# 虚拟环境
+venv/
+ENV/
+env/
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+
+# 操作系统
+.DS_Store
+Thumbs.db
diff --git a/dev-workflow/dev_workflow.py b/dev-workflow/dev_workflow.py
new file mode 100644
index 0000000..16ff155
--- /dev/null
+++ b/dev-workflow/dev_workflow.py
@@ -0,0 +1,121 @@
+#!/usr/bin/env python3
+"""
+Dev Workflow - 开发工作流工具
+提供 Cross-Debate 统计报告等功能
+"""
+
+import sys
+import argparse
+from pathlib import Path
+
+# 添加当前目录到 Python 路径
+sys.path.insert(0, str(Path(__file__).parent))
+
+from stats import record_event, get_stats, format_stats_report
+
+
+def cmd_stats(args):
+    """查看统计报告"""
+    print(format_stats_report())
+    return 0
+
+
+def cmd_record_event(args):
+    """记录事件"""
+    try:
+        # 构建 metadata
+        metadata = {}
+        if args.metadata:
+            for item in args.metadata:
+                if '=' in item:
+                    key, value = item.split('=', 1)
+                    metadata[key] = value
+        
+        # 记录事件
+        record_event(
+            event_type=args.type,
+            mode=args.mode,
+            metadata=metadata,
+            status=args.status
+        )
+        
+        print(f"✅ 事件已记录: type={args.type}, mode={args.mode}, status={args.status}")
+        return 0
+        
+    except ValueError as e:
+        print(f"❌ 错误: {e}", file=sys.stderr)
+        return 1
+    except Exception as e:
+        print(f"❌ 记录事件失败: {e}", file=sys.stderr)
+        return 1
+
+
+def main():
+    """主函数"""
+    parser = argparse.ArgumentParser(
+        description='Dev Workflow - 开发工作流工具',
+        formatter_class=argparse.RawDescriptionHelpFormatter,
+        epilog="""
+示例:
+  # 查看统计报告
+  python3 dev_workflow.py stats
+  
+  # 记录一个 cross 模式的 debate 事件
+  python3 dev_workflow.py record-event --type debate --mode cross --status success
+  
+  # 记录带元数据的事件
+  python3 dev_workflow.py record-event --type review --mode normal --metadata files=5 issues=2
+        """
+    )
+    
+    subparsers = parser.add_subparsers(dest='command', help='可用命令')
+    
+    # stats 命令
+    stats_parser = subparsers.add_parser('stats', help='查看统计报告')
+    stats_parser.set_defaults(func=cmd_stats)
+    
+    # record-event 命令
+    record_parser = subparsers.add_parser('record-event', help='记录事件')
+    record_parser.add_argument(
+        '--type',
+        required=True,
+        choices=['debate', 'review', 'audit'],
+        help='事件类型 (debate|review|audit)'
+    )
+    record_parser.add_argument(
+        '--mode',
+        required=True,
+        choices=['cross', 'normal'],
+        help='模式 (cross|normal)'
+    )
+    record_parser.add_argument(
+        '--status',
+        default='success',
+        choices=['success', 'failed'],
+        help='事件状态 (success|failed)，默认为 success'
+    )
+    record_parser.add_argument(
+        '--metadata',
+        nargs='*',
+        help='元数据，格式为 key=value（可多个）'
+    )
+    record_parser.set_defaults(func=cmd_record_event)
+    
+    # 解析参数
+    args = parser.parse_args()
+    
+    # 如果没有指定命令，显示帮助
+    if not args.command:
+        parser.print_help()
+        return 0
+    
+    # 执行命令
+    if hasattr(args, 'func'):
+        return args.func(args)
+    else:
+        parser.print_help()
+        return 0
+
+
+if __name__ == '__main__':
+    sys.exit(main())
diff --git a/dev-workflow/stats.py b/dev-workflow/stats.py
new file mode 100644
index 0000000..3b5d1e8
--- /dev/null
+++ b/dev-workflow/stats.py
@@ -0,0 +1,279 @@
+#!/usr/bin/env python3
+"""
+Cross-Debate 统计报告模块
+提供事件记录和统计报告功能
+"""
+
+import json
+import os
+import fcntl
+from datetime import datetime, timezone
+from pathlib import Path
+from typing import Dict, List, Any, Optional
+
+
+class StatsManager:
+    """统计管理器"""
+    
+    # 敏感字段列表
+    SENSITIVE_FIELDS = {'password', 'token', 'secret', 'api_key', 'apikey', 'credential'}
+    
+    def __init__(self, stats_file: str = None):
+        """初始化统计管理器
+        
+        Args:
+            stats_file: 统计数据文件路径，默认为 ~/.dev-workflow/stats.json
+        """
+        if stats_file is None:
+            stats_dir = Path.home() / '.dev-workflow'
+            stats_dir.mkdir(parents=True, exist_ok=True)
+            stats_file = stats_dir / 'stats.json'
+        
+        self.stats_file = Path(stats_file)
+        self._ensure_stats_file()
+    
+    def _filter_sensitive_data(self, data: Dict[str, Any]) -> Dict[str, Any]:
+        """过滤敏感数据
+        
+        Args:
+            data: 原始数据字典
+            
+        Returns:
+            过滤后的数据字典
+        """
+        filtered = {}
+        for key, value in data.items():
+            key_lower = key.lower()
+            # 检查是否包含敏感字段
+            if any(sensitive in key_lower for sensitive in self.SENSITIVE_FIELDS):
+                filtered[key] = '***REDACTED***'
+            elif isinstance(value, dict):
+                filtered[key] = self._filter_sensitive_data(value)
+            else:
+                filtered[key] = value
+        return filtered
+    
+    def _ensure_stats_file(self):
+        """确保统计文件存在并设置正确权限"""
+        if not self.stats_file.exists():
+            self.stats_file.parent.mkdir(parents=True, exist_ok=True)
+            self._write_data({"events": []})
+        
+        # 设置文件权限为 600 (仅所有者可读写)
+        self.stats_file.chmod(0o600)
+    
+    def _read_data(self) -> Dict[str, Any]:
+        """读取统计数据（带文件锁）
+        
+        Returns:
+            统计数据字典
+        """
+        if not self.stats_file.exists():
+            return {"events": []}
+        
+        with open(self.stats_file, 'r') as f:
+            # 获取共享锁（读锁）
+            fcntl.flock(f.fileno(), fcntl.LOCK_SH)
+            try:
+                data = json.load(f)
+            finally:
+                # 释放锁
+                fcntl.flock(f.fileno(), fcntl.LOCK_UN)
+        
+        return data
+    
+    def _write_data(self, data: Dict[str, Any]):
+        """写入统计数据（带文件锁）
+        
+        Args:
+            data: 要写入的数据字典
+        """
+        with open(self.stats_file, 'w') as f:
+            # 获取排他锁（写锁）
+            fcntl.flock(f.fileno(), fcntl.LOCK_EX)
+            try:
+                json.dump(data, f, indent=2, ensure_ascii=False)
+            finally:
+                # 释放锁
+                fcntl.flock(f.fileno(), fcntl.LOCK_UN)
+        
+        # 确保文件权限为 600
+        self.stats_file.chmod(0o600)
+    
+    def record_event(
+        self,
+        event_type: str,
+        mode: str,
+        metadata: Optional[Dict[str, Any]] = None,
+        status: str = "success"
+    ) -> bool:
+        """记录事件
+        
+        Args:
+            event_type: 事件类型 (debate|review|audit)
+            mode: 模式 (cross|normal)
+            metadata: 事件元数据
+            status: 事件状态 (success|failed)
+            
+        Returns:
+            是否记录成功
+        """
+        # 验证参数
+        valid_types = {'debate', 'review', 'audit'}
+        valid_modes = {'cross', 'normal'}
+        valid_statuses = {'success', 'failed'}
+        
+        if event_type not in valid_types:
+            raise ValueError(f"Invalid event_type: {event_type}. Must be one of {valid_types}")
+        if mode not in valid_modes:
+            raise ValueError(f"Invalid mode: {mode}. Must be one of {valid_modes}")
+        if status not in valid_statuses:
+            raise ValueError(f"Invalid status: {status}. Must be one of {valid_statuses}")
+        
+        # 过滤敏感数据
+        if metadata is None:
+            metadata = {}
+        metadata = self._filter_sensitive_data(metadata)
+        
+        # 创建事件记录
+        event = {
+            "timestamp": datetime.now(timezone.utc).isoformat(),
+            "event_type": event_type,
+            "mode": mode,
+            "status": status,
+            "metadata": metadata
+        }
+        
+        # 读取现有数据
+        data = self._read_data()
+        
+        # 添加新事件
+        data["events"].append(event)
+        
+        # 写入数据
+        self._write_data(data)
+        
+        return True
+    
+    def get_stats(self) -> Dict[str, Any]:
+        """获取统计数据
+        
+        Returns:
+            统计数据字典，包含总数、各类型计数等
+        """
+        data = self._read_data()
+        events = data.get("events", [])
+        
+        # 基础统计
+        stats = {
+            "total_events": len(events),
+            "by_type": {},
+            "by_mode": {},
+            "by_status": {},
+            "by_type_and_mode": {},
+            "recent_events": events[-10:] if events else []  # 最近10条事件
+        }
+        
+        # 统计各维度
+        for event in events:
+            event_type = event.get("event_type", "unknown")
+            mode = event.get("mode", "unknown")
+            status = event.get("status", "unknown")
+            
+            # 按类型统计
+            stats["by_type"][event_type] = stats["by_type"].get(event_type, 0) + 1
+            
+            # 按模式统计
+            stats["by_mode"][mode] = stats["by_mode"].get(mode, 0) + 1
+            
+            # 按状态统计
+            stats["by_status"][status] = stats["by_status"].get(status, 0) + 1
+            
+            # 按类型和模式交叉统计
+            key = f"{event_type}_{mode}"
+            stats["by_type_and_mode"][key] = stats["by_type_and_mode"].get(key, 0) + 1
+        
+        return stats
+    
+    def format_stats_report(self) -> str:
+        """格式化统计报告
+        
+        Returns:
+            格式化的统计报告字符串
+        """
+        stats = self.get_stats()
+        
+        report_lines = [
+            "=" * 50,
+            "Cross-Debate 统计报告",
+            "=" * 50,
+            "",
+            f"📊 总事件数: {stats['total_events']}",
+            "",
+            "📋 按事件类型统计:",
+        ]
+        
+        for event_type, count in sorted(stats["by_type"].items()):
+            report_lines.append(f"   - {event_type}: {count}")
+        
+        report_lines.append("")
+        report_lines.append("🔀 按模式统计:")
+        
+        for mode, count in sorted(stats["by_mode"].items()):
+            report_lines.append(f"   - {mode}: {count}")
+        
+        report_lines.append("")
+        report_lines.append("✅ 按状态统计:")
+        
+        for status, count in sorted(stats["by_status"].items()):
+            report_lines.append(f"   - {status}: {count}")
+        
+        report_lines.append("")
+        report_lines.append("📊 按类型和模式交叉统计:")
+        
+        for key, count in sorted(stats["by_type_and_mode"].items()):
+            report_lines.append(f"   - {key}: {count}")
+        
+        report_lines.append("")
+        report_lines.append("=" * 50)
+        
+        return "\n".join(report_lines)
+
+
+# 便捷函数
+_manager = None
+
+def _get_manager() -> StatsManager:
+    """获取全局统计管理器实例"""
+    global _manager
+    if _manager is None:
+        _manager = StatsManager()
+    return _manager
+
+
+def record_event(event_type: str, mode: str, metadata: Optional[Dict[str, Any]] = None, status: str = "success") -> bool:
+    """记录事件（便捷函数）"""
+    return _get_manager().record_event(event_type, mode, metadata, status)
+
+
+def get_stats() -> Dict[str, Any]:
+    """获取统计数据（便捷函数）"""
+    return _get_manager().get_stats()
+
+
+def format_stats_report() -> str:
+    """格式化统计报告（便捷函数）"""
+    return _get_manager().format_stats_report()
+
+
+if __name__ == "__main__":
+    # 测试代码
+    print("测试统计模块...")
+    
+    # 记录一些测试事件
+    record_event("debate", "cross", {"topic": "test1", "result": "win"})
+    record_event("review", "normal", {"files": 5})
+    record_event("audit", "cross", {"issues": 3}, status="failed")
+    
+    # 打印报告
+    print(format_stats_report())