# 工具系统类型定义 - 自然语言实现规范

## 1. 模块概述

### 1.1 功能定位
工具系统类型定义模块是Claude Code工具生态系统的核心类型规范，提供完整的TypeScript类型声明和接口标准，确保Edit工具9层验证机制、readFileState强制追踪等核心功能的类型安全性。

### 1.2 核心职责
- 工具接口定义：定义统一的工具接口规范，支持Edit、Read、Write、Bash等核心工具
- 权限类型管理：定义工具权限矩阵和访问控制类型系统
- 验证机制类型：定义9层验证机制的完整类型结构和验证链
- 状态追踪类型：定义readFileState强制追踪的状态类型和生命周期
- 执行结果类型：定义工具执行结果的标准化类型格式

### 1.3 设计目标
实现完整的工具类型安全体系、支持动态工具注册、提供强类型的权限控制、确保执行结果的类型一致性和支持工具链组合。

## 2. 接口定义

### 2.1 输入输出规范

#### 核心工具接口
```typescript
// 基础工具接口
interface ITool {
  readonly name: string;
  readonly version: string;
  readonly description: string;
  readonly category: ToolCategory;
  readonly capabilities: readonly ToolCapability[];
  readonly permissions: ToolPermissionRequirement[];
  readonly metadata: Readonly<ToolMetadata>;
  
  // 工具生命周期
  initialize(context: ToolExecutionContext): Promise<void>;
  validate(request: ToolRequest): Promise<ValidationResult>;
  execute(request: ToolRequest): AsyncGenerator<ToolResponse>;
  dispose(): Promise<void>;
  
  // 状态管理
  getStatus(): ToolStatus;
  getHealth(): Promise<ToolHealth>;
  getMetrics(): Promise<ToolMetrics>;
  
  // 配置管理
  updateConfiguration(config: Partial<ToolConfiguration>): Promise<void>;
  getConfiguration(): Readonly<ToolConfiguration>;
}

// 工具工厂接口
interface IToolFactory {
  createTool<T extends ToolType>(
    type: T,
    config: ToolConfigurationByType<T>
  ): Promise<ToolByType<T>>;
  
  destroyTool(toolName: string): Promise<void>;
  listTools(filter?: ToolFilter): Promise<ITool[]>;
  getToolByName(name: string): Promise<ITool | null>;
  
  // 动态工具注册
  registerTool(toolDefinition: ToolDefinition): Promise<void>;
  unregisterTool(toolName: string): Promise<void>;
}
```

### 2.2 参数验证规则
- toolName: 非空字符串，长度1-50字符，符合[a-zA-Z][a-zA-Z0-9_-]*格式
- ToolRequest: 必须包含toolName、parameters等必填字段
- ToolPermission: 权限标识符必须在预定义的权限列表中
- ValidationResult: 必须包含isValid、errors等状态信息
- ToolResponse: 必须包含status、data等标准字段

### 2.3 返回格式定义
```typescript
// 工具执行响应格式
interface ToolResponse {
  status: ToolResponseStatus;
  data?: any;
  error?: ToolError;
  metadata: ResponseMetadata;
  timestamp: Date;
  duration: number;
}

// 验证结果格式
interface ValidationResult {
  isValid: boolean;
  errors: ValidationError[];
  warnings: ValidationWarning[];
  layer: ValidationLayer;
  context: ValidationContext;
}

// 工具执行结果格式
interface ToolExecutionResult<T = any> {
  success: boolean;
  data?: T;
  error?: ToolError;
  metrics: ExecutionMetrics;
  trace: ExecutionTrace;
}
```

## 3. 核心逻辑

### 3.1 处理流程描述

#### 工具类型分类体系
```typescript
// 工具类型枚举
enum ToolType {
  FILE_SYSTEM = 'file_system',
  CODE_EXECUTION = 'code_execution',
  NETWORK = 'network',
  DATA_PROCESSING = 'data_processing',
  USER_INTERACTION = 'user_interaction',
  SYSTEM_OPERATION = 'system_operation'
}

// 具体工具枚举
enum SpecificToolType {
  EDIT = 'edit',
  READ = 'read',
  WRITE = 'write',
  BASH = 'bash',
  SEARCH = 'search',
  TASK = 'task'
}

// 工具状态枚举
enum ToolStatus {
  UNINITIALIZED = 'uninitialized',
  INITIALIZING = 'initializing',
  READY = 'ready',
  EXECUTING = 'executing',
  BUSY = 'busy',
  ERROR = 'error',
  DISABLED = 'disabled',
  DISPOSED = 'disposed'
}

// 工具能力类型
type ToolCapability = 
  | 'file_read'
  | 'file_write'
  | 'file_delete'
  | 'directory_traverse'
  | 'code_execution'
  | 'network_access'
  | 'system_command'
  | 'user_interaction'
  | 'data_processing'
  | 'concurrent_execution';
```

### 3.2 关键算法说明

#### 9层验证机制类型定义
```typescript
// 验证层级枚举
enum ValidationLayer {
  LAYER_1_SYNTAX = 1,          // 语法验证
  LAYER_2_SEMANTIC = 2,        // 语义验证
  LAYER_3_PERMISSION = 3,      // 权限验证
  LAYER_4_RESOURCE = 4,        // 资源验证
  LAYER_5_DEPENDENCY = 5,      // 依赖验证
  LAYER_6_SECURITY = 6,        // 安全验证
  LAYER_7_PERFORMANCE = 7,     // 性能验证
  LAYER_8_CONSISTENCY = 8,     // 一致性验证
  LAYER_9_INTEGRITY = 9        // 完整性验证
}

// 验证器接口
interface IValidator<T = any> {
  layer: ValidationLayer;
  validate(data: T, context: ValidationContext): Promise<ValidationResult>;
  getDescription(): string;
  isRequired(): boolean;
}

// 验证链管理器
interface IValidationChain {
  addValidator(validator: IValidator): void;
  removeValidator(layer: ValidationLayer): void;
  validate(data: any, context: ValidationContext): Promise<ValidationChainResult>;
  getValidators(): IValidator[];
}

// 验证链结果
interface ValidationChainResult {
  isValid: boolean;
  layerResults: Map<ValidationLayer, ValidationResult>;
  failedLayer?: ValidationLayer;
  executionTime: number;
  metadata: ValidationMetadata;
}
```

#### readFileState强制追踪类型
```typescript
// 文件状态类型
interface FileState {
  readonly path: string;
  readonly content: string;
  readonly hash: string;
  readonly size: number;
  readonly lastModified: Date;
  readonly permissions: FilePermissions;
  readonly encoding: string;
  readonly metadata: FileMetadata;
}

// 文件状态追踪器接口
interface IFileStateTracker {
  trackRead(filePath: string): Promise<FileState>;
  getState(filePath: string): FileState | null;
  validateState(filePath: string, expectedHash?: string): Promise<boolean>;
  clearState(filePath: string): void;
  
  // 状态变更监听
  onStateChange(filePath: string, callback: StateChangeCallback): () => void;
  
  // 批量操作
  trackMultiple(filePaths: string[]): Promise<Map<string, FileState>>;
  validateMultiple(states: Map<string, string>): Promise<Map<string, boolean>>;
}

// 状态变更事件
interface StateChangeEvent {
  filePath: string;
  oldState: FileState | null;
  newState: FileState;
  changeType: StateChangeType;
  timestamp: Date;
  triggeredBy: string;
}

enum StateChangeType {
  INITIAL_READ = 'initial_read',
  CONTENT_MODIFIED = 'content_modified',
  PERMISSIONS_CHANGED = 'permissions_changed',
  FILE_DELETED = 'file_deleted',
  FILE_MOVED = 'file_moved'
}
```

### 3.3 数据结构定义

#### 工具配置类型结构
```typescript
// 基础工具配置
interface ToolConfiguration {
  name: string;
  enabled: boolean;
  permissions: ToolPermissionSet;
  limits: ResourceLimits;
  timeouts: TimeoutConfiguration;
  logging: LoggingConfiguration;
  security: SecurityConfiguration;
  performance: PerformanceConfiguration;
}

// 权限集合
interface ToolPermissionSet {
  required: ToolPermission[];
  optional: ToolPermission[];
  denied: ToolPermission[];
  conditional: ConditionalPermission[];
}

// 条件权限
interface ConditionalPermission {
  permission: ToolPermission;
  condition: PermissionCondition;
  fallback?: ToolPermission;
}

// 资源限制
interface ResourceLimits {
  maxMemory: number;
  maxCpuTime: number;
  maxExecutionTime: number;
  maxConcurrency: number;
  maxFileSize: number;
  maxNetworkBandwidth: number;
}

// 性能配置
interface PerformanceConfiguration {
  caching: {
    enabled: boolean;
    ttl: number;
    maxSize: number;
  };
  batching: {
    enabled: boolean;
    batchSize: number;
    batchTimeout: number;
  };
  optimization: {
    useWorkerThreads: boolean;
    enableStreamProcessing: boolean;
    enablePipelining: boolean;
  };
}
```

## 4. 状态管理

### 4.1 内部状态定义

#### 工具状态管理器
```typescript
// 工具状态接口
interface ToolState {
  name: string;
  status: ToolStatus;
  currentExecution?: ExecutionContext;
  activeRequests: Map<string, ToolRequest>;
  executionHistory: ExecutionRecord[];
  performance: PerformanceState;
  health: HealthState;
  lastActivity: Date;
  
  // 错误状态
  lastError?: ToolError;
  errorCount: number;
  consecutiveErrors: number;
  
  // 资源使用状态
  resourceUsage: ResourceUsageState;
}

// 执行上下文
interface ExecutionContext {
  requestId: string;
  toolName: string;
  parameters: Record<string, any>;
  startTime: Date;
  expectedDuration: number;
  priority: ExecutionPriority;
  permissions: ToolPermission[];
  traceId: string;
}

// 性能状态
interface PerformanceState {
  totalExecutions: number;
  successfulExecutions: number;
  failedExecutions: number;
  averageExecutionTime: number;
  peakExecutionTime: number;
  throughput: number;
  lastPerformanceCheck: Date;
}

// 健康状态
interface HealthState {
  status: HealthStatus;
  score: number;
  checks: HealthCheck[];
  lastHealthCheck: Date;
  uptime: number;
  
  // 健康指标
  responseTime: number;
  errorRate: number;
  resourceUtilization: number;
  availability: number;
}
```

### 4.2 状态生命周期

#### 工具生命周期状态流转
```typescript
// 生命周期状态管理器
interface IToolLifecycleManager {
  registerTool(tool: ITool): Promise<void>;
  initializeTool(toolName: string): Promise<void>;
  startTool(toolName: string): Promise<void>;
  stopTool(toolName: string): Promise<void>;
  restartTool(toolName: string): Promise<void>;
  unregisterTool(toolName: string): Promise<void>;
  
  // 状态查询
  getToolState(toolName: string): Promise<ToolState>;
  listToolStates(filter?: StateFilter): Promise<ToolState[]>;
  
  // 生命周期事件
  onStateChange(toolName: string, callback: StateChangeCallback): () => void;
  onError(toolName: string, callback: ErrorCallback): () => void;
}

// 生命周期事件
interface LifecycleEvent {
  type: LifecycleEventType;
  toolName: string;
  oldState: ToolStatus;
  newState: ToolStatus;
  timestamp: Date;
  metadata: EventMetadata;
  error?: ToolError;
}

enum LifecycleEventType {
  REGISTRATION = 'registration',
  INITIALIZATION = 'initialization',
  STARTUP = 'startup',
  SHUTDOWN = 'shutdown',
  ERROR_OCCURRED = 'error_occurred',
  RECOVERY = 'recovery',
  CONFIGURATION_CHANGED = 'configuration_changed',
  UNREGISTRATION = 'unregistration'
}
```

### 4.3 持久化策略

#### 工具状态持久化
```typescript
// 状态持久化接口
interface IToolStatePersistence {
  saveToolState(toolName: string, state: ToolState): Promise<void>;
  loadToolState(toolName: string): Promise<ToolState | null>;
  deleteToolState(toolName: string): Promise<void>;
  
  // 配置持久化
  saveToolConfiguration(toolName: string, config: ToolConfiguration): Promise<void>;
  loadToolConfiguration(toolName: string): Promise<ToolConfiguration | null>;
  
  // 执行历史持久化
  saveExecutionRecord(record: ExecutionRecord): Promise<void>;
  getExecutionHistory(toolName: string, timeRange?: TimeRange): Promise<ExecutionRecord[]>;
  
  // 性能数据持久化
  savePerformanceMetrics(toolName: string, metrics: PerformanceMetrics): Promise<void>;
  getPerformanceHistory(toolName: string, timeRange: TimeRange): Promise<PerformanceMetrics[]>;
}

// 执行记录
interface ExecutionRecord {
  id: string;
  toolName: string;
  request: ToolRequest;
  response: ToolResponse;
  startTime: Date;
  endTime: Date;
  duration: number;
  success: boolean;
  error?: ToolError;
  traceId: string;
  metadata: ExecutionMetadata;
}
```

## 5. 异常处理

### 5.1 异常分类体系

#### 工具异常类型层次
```typescript
// 基础工具异常
abstract class ToolError extends Error {
  public readonly code: string;
  public readonly toolName: string;
  public readonly layer?: ValidationLayer;
  public readonly timestamp: Date;
  public readonly context: Record<string, any>;
  public readonly retryable: boolean;
  
  constructor(
    message: string,
    code: string,
    toolName: string,
    options: ToolErrorOptions = {}
  ) {
    super(message);
    this.name = this.constructor.name;
    this.code = code;
    this.toolName = toolName;
    this.layer = options.layer;
    this.timestamp = new Date();
    this.context = options.context || {};
    this.retryable = options.retryable ?? false;
  }
}

// 具体异常类型
class ToolValidationError extends ToolError {
  public readonly validationResults: ValidationResult[];
  
  constructor(
    toolName: string,
    layer: ValidationLayer,
    results: ValidationResult[],
    context: Record<string, any> = {}
  ) {
    const message = `Validation failed at layer ${layer}`;
    super(message, 'TOOL_VALIDATION_ERROR', toolName, { layer, context });
    this.validationResults = results;
  }
}

class ToolExecutionError extends ToolError {
  public readonly executionContext: ExecutionContext;
  
  constructor(
    toolName: string,
    executionContext: ExecutionContext,
    cause: string,
    context: Record<string, any> = {}
  ) {
    super(`Execution failed: ${cause}`, 'TOOL_EXECUTION_ERROR', toolName, { context, retryable: true });
    this.executionContext = executionContext;
  }
}

class ToolPermissionError extends ToolError {
  public readonly requiredPermission: ToolPermission;
  public readonly userPermissions: ToolPermission[];
  
  constructor(
    toolName: string,
    requiredPermission: ToolPermission,
    userPermissions: ToolPermission[],
    context: Record<string, any> = {}
  ) {
    super(`Permission denied: ${requiredPermission}`, 'TOOL_PERMISSION_ERROR', toolName, { context });
    this.requiredPermission = requiredPermission;
    this.userPermissions = userPermissions;
  }
}

class FileStateTrackingError extends ToolError {
  public readonly filePath: string;
  public readonly expectedHash?: string;
  public readonly actualHash?: string;
  
  constructor(
    toolName: string,
    filePath: string,
    reason: string,
    options: { expectedHash?: string; actualHash?: string } = {}
  ) {
    super(`File state tracking error: ${reason}`, 'FILE_STATE_ERROR', toolName);
    this.filePath = filePath;
    this.expectedHash = options.expectedHash;
    this.actualHash = options.actualHash;
  }
}
```

### 5.2 监控日志策略

#### 工具监控指标
```typescript
// 监控指标收集器
interface IToolMetricsCollector {
  recordExecution(toolName: string, record: ExecutionRecord): void;
  recordError(toolName: string, error: ToolError): void;
  recordPerformance(toolName: string, metrics: PerformanceMetrics): void;
  recordValidation(toolName: string, result: ValidationChainResult): void;
  
  getMetrics(toolName: string): Promise<ToolMetrics>;
  getAggregatedMetrics(filter: MetricsFilter): Promise<AggregatedToolMetrics>;
}

// 工具指标
interface ToolMetrics {
  toolName: string;
  totalExecutions: number;
  successfulExecutions: number;
  failedExecutions: number;
  averageExecutionTime: number;
  peakExecutionTime: number;
  throughput: number;
  errorRate: number;
  validationFailureRate: number;
  resourceUtilization: ResourceUtilization;
  lastUpdated: Date;
}

// 聚合指标
interface AggregatedToolMetrics {
  totalTools: number;
  activeTools: number;
  totalExecutions: number;
  overallSuccessRate: number;
  averageResponseTime: number;
  peakThroughput: number;
  topErrors: ErrorSummary[];
  resourceUsageSummary: ResourceUsageSummary;
  timeRange: TimeRange;
}
```

### 5.3 错误恢复机制

#### 工具恢复策略
```typescript
// 恢复策略定义
interface ToolRecoveryStrategy {
  name: string;
  applicableErrors: string[];
  maxAttempts: number;
  backoffStrategy: BackoffStrategy;
  execute: (toolName: string, error: ToolError) => Promise<RecoveryResult>;
  validate: (result: RecoveryResult) => boolean;
}

// 恢复管理器
interface IToolRecoveryManager {
  registerStrategy(strategy: ToolRecoveryStrategy): void;
  executeRecovery(toolName: string, error: ToolError): Promise<RecoveryResult>;
  getRecoveryHistory(toolName: string): Promise<RecoveryAttempt[]>;
  
  // 自动恢复配置
  enableAutoRecovery(toolName: string, strategies: string[]): void;
  disableAutoRecovery(toolName: string): void;
}

// 恢复结果
interface RecoveryResult {
  success: boolean;
  action: RecoveryAction;
  newState: ToolStatus;
  message: string;
  metadata: Record<string, any>;
  nextAttemptAfter?: number;
}

enum RecoveryAction {
  RESTART = 'restart',
  RECONFIGURE = 'reconfigure',
  REINITIALIZE = 'reinitialize',
  FALLBACK = 'fallback',
  ESCALATE = 'escalate',
  IGNORE = 'ignore'
}
```

## 6. 性能要求

### 6.1 响应时间目标
- **工具初始化**: < 500ms
- **验证链执行**: < 100ms（单层），< 1秒（全链）
- **状态查询**: < 10ms
- **配置更新**: < 50ms
- **错误恢复**: < 2秒

### 6.2 并发处理能力
- **同时活跃工具数**: 支持50+个工具实例
- **并发执行请求**: 每个工具支持10+个并发请求
- **验证链并行度**: 支持5层验证并行执行
- **状态追踪并发**: 支持1000+个文件同时追踪

### 6.3 资源使用限制
- **内存使用**: 每个工具实例 < 100MB
- **CPU使用率**: 正常负载 < 20%，峰值负载 < 80%
- **文件句柄**: 每个工具 < 100个打开文件
- **网络连接**: 每个工具 < 50个并发连接

## 7. 安全考虑

### 7.1 权限控制机制

#### 工具权限矩阵
```typescript
// 权限矩阵定义
interface ToolPermissionMatrix {
  [toolName: string]: {
    required: ToolPermission[];
    optional: ToolPermission[];
    denied: ToolPermission[];
    groups: PermissionGroup[];
  };
}

// 权限组
interface PermissionGroup {
  name: string;
  permissions: ToolPermission[];
  conditions: PermissionCondition[];
  inheritance: string[];
}

// 权限验证器
interface IToolPermissionValidator {
  validatePermission(
    toolName: string,
    user: UserContext,
    permission: ToolPermission
  ): Promise<boolean>;
  
  grantPermission(
    toolName: string,
    user: UserContext,
    permission: ToolPermission
  ): Promise<void>;
  
  revokePermission(
    toolName: string,
    user: UserContext,
    permission: ToolPermission
  ): Promise<void>;
  
  listPermissions(toolName: string, user: UserContext): Promise<ToolPermission[]>;
}

// 动态权限条件
interface PermissionCondition {
  type: ConditionType;
  parameter: string;
  operator: ConditionOperator;
  value: any;
  metadata?: Record<string, any>;
}

enum ConditionType {
  TIME_RANGE = 'time_range',
  IP_ADDRESS = 'ip_address',
  USER_ATTRIBUTE = 'user_attribute',
  RESOURCE_STATE = 'resource_state',
  EXECUTION_CONTEXT = 'execution_context'
}
```

### 7.2 数据安全保护

#### 安全执行环境
```typescript
// 安全执行上下文
interface SecureExecutionContext extends ExecutionContext {
  securityLevel: SecurityLevel;
  sandboxEnabled: boolean;
  networkIsolation: boolean;
  fileSystemRestrictions: FileSystemRestriction[];
  resourceQuotas: ResourceQuota[];
  auditingEnabled: boolean;
}

// 文件系统限制
interface FileSystemRestriction {
  type: RestrictionType;
  path: string;
  permissions: FileSystemPermission[];
  exceptions: string[];
}

enum RestrictionType {
  WHITELIST = 'whitelist',
  BLACKLIST = 'blacklist',
  READ_ONLY = 'read_only',
  NO_EXECUTE = 'no_execute'
}

// 资源配额
interface ResourceQuota {
  resource: ResourceType;
  limit: number;
  current: number;
  enforcement: QuotaEnforcement;
}

enum QuotaEnforcement {
  SOFT_LIMIT = 'soft_limit',
  HARD_LIMIT = 'hard_limit',
  THROTTLING = 'throttling'
}
```

### 7.3 攻击防护措施

#### 安全防护类型
```typescript
// 输入净化器
interface IInputSanitizer<T = any> {
  sanitize(input: T, context: SanitizationContext): T;
  validate(input: T, rules: ValidationRule[]): ValidationResult;
  escape(input: string, format: EscapeFormat): string;
}

// 净化上下文
interface SanitizationContext {
  toolName: string;
  parameterName: string;
  expectedType: string;
  securityLevel: SecurityLevel;
  allowedPatterns: RegExp[];
  deniedPatterns: RegExp[];
}

// 攻击检测器
interface IAttackDetector {
  detectInjection(input: string, type: InjectionType): boolean;
  detectPathTraversal(path: string): boolean;
  detectResourceExhaustion(request: ToolRequest): boolean;
  detectAnomalousPattern(input: any, baseline: Pattern): boolean;
}

enum InjectionType {
  SQL = 'sql',
  COMMAND = 'command',
  SCRIPT = 'script',
  TEMPLATE = 'template',
  EXPRESSION = 'expression'
}
```

## 8. 依赖关系

### 8.1 上游依赖模块

#### 核心依赖类型
```typescript
// Agent系统类型依赖
import type {
  IAgent,
  AgentType,
  AgentContext,
  TaskReference
} from './agent-types';

// 配置系统类型依赖
import type {
  Configuration,
  ConfigurationSection,
  ConfigChangeEvent
} from './config-types';

// 消息系统类型依赖
import type {
  Message,
  MessageQueue,
  MessageHandler
} from './message-types';

// 文件系统类型依赖
import type {
  FileSystem,
  FileWatcher,
  FilePermissions
} from './filesystem-types';
```

### 8.2 下游调用接口

#### 工具系统集成接口
```typescript
// 工具注册接口
interface IToolRegistry {
  register<T extends ITool>(tool: T): Promise<void>;
  unregister(toolName: string): Promise<void>;
  get(toolName: string): Promise<ITool | null>;
  list(filter?: ToolFilter): Promise<ITool[]>;
  
  // 动态加载
  loadTool(definition: ToolDefinition): Promise<ITool>;
  unloadTool(toolName: string): Promise<void>;
}

// 工具执行引擎接口
interface IToolExecutionEngine {
  execute<T = any>(
    toolName: string,
    parameters: Record<string, any>,
    context: ExecutionContext
  ): AsyncGenerator<ToolResponse<T>>;
  
  executeParallel(
    requests: ToolRequest[]
  ): Promise<ToolExecutionResult[]>;
  
  executePipeline(
    pipeline: ToolPipeline
  ): AsyncGenerator<PipelineResult>;
}

// 工具管道类型
interface ToolPipeline {
  id: string;
  name: string;
  steps: PipelineStep[];
  errorHandling: ErrorHandlingStrategy;
  parallelism: ParallelismStrategy;
}

interface PipelineStep {
  toolName: string;
  parameters: Record<string, any>;
  condition?: StepCondition;
  timeout?: number;
  retryPolicy?: RetryPolicy;
}
```

### 8.3 配置依赖项目

#### 工具系统配置类型
```typescript
// 工具系统全局配置
interface ToolSystemConfiguration {
  // 执行配置
  execution: {
    defaultTimeout: number;
    maxConcurrency: number;
    retryPolicy: RetryPolicy;
    resourceLimits: GlobalResourceLimits;
  };
  
  // 验证配置
  validation: {
    enableNineLayerValidation: boolean;
    requiredLayers: ValidationLayer[];
    optionalLayers: ValidationLayer[];
    validationTimeout: number;
  };
  
  // 安全配置
  security: {
    enableSandbox: boolean;
    defaultSecurityLevel: SecurityLevel;
    permissionCacheTtl: number;
    auditingEnabled: boolean;
  };
  
  // 监控配置
  monitoring: {
    enableMetrics: boolean;
    metricsRetention: number;
    alertThresholds: AlertThreshold[];
    performanceMonitoring: boolean;
  };
  
  // 工具特定配置
  tools: {
    [toolName: string]: ToolConfiguration;
  };
}

// 全局资源限制
interface GlobalResourceLimits {
  totalMemory: number;
  totalCpuTime: number;
  totalFileHandles: number;
  totalNetworkConnections: number;
  maxToolInstances: number;
}
```

## 9. 测试验证

### 9.1 单元测试规范

#### 工具类型测试框架
```typescript
describe('Tool Type System', () => {
  describe('Tool Interface', () => {
    it('should implement ITool interface correctly', () => {
      const tool = new EditTool();
      expect(tool).toSatisfy(isValidTool);
      expect(tool.name).toBeDefined();
      expect(tool.capabilities).toBeInstanceOf(Array);
    });
  });
  
  describe('Validation Chain', () => {
    it('should execute nine-layer validation', async () => {
      const validationChain = new ValidationChain();
      
      // 添加所有9层验证器
      for (let layer = 1; layer <= 9; layer++) {
        validationChain.addValidator(createValidator(layer as ValidationLayer));
      }
      
      const result = await validationChain.validate({
        toolName: 'edit',
        parameters: { file: 'test.txt', content: 'new content' }
      }, createTestContext());
      
      expect(result.layerResults.size).toBe(9);
      expect(result.isValid).toBe(true);
    });
  });
  
  describe('File State Tracking', () => {
    it('should track file state correctly', async () => {
      const tracker = new FileStateTracker();
      const filePath = '/test/file.txt';
      
      const state = await tracker.trackRead(filePath);
      expect(state.path).toBe(filePath);
      expect(state.hash).toBeDefined();
      
      const retrieved = tracker.getState(filePath);
      expect(retrieved).toEqual(state);
    });
  });
});
```

#### 类型安全测试
```typescript
// 编译时类型测试
type Test_ToolType_Union = ToolType extends string ? true : false;
type Test_ValidationLayer_Numeric = ValidationLayer extends number ? true : false;

// 类型保护测试
describe('Type Guards', () => {
  it('should correctly identify tool types', () => {
    const editTool = createMockTool('edit');
    expect(isEditTool(editTool)).toBe(true);
    expect(isBashTool(editTool)).toBe(false);
  });
  
  it('should validate tool configurations', () => {
    const config: ToolConfiguration = {
      name: 'test-tool',
      enabled: true,
      permissions: createTestPermissionSet(),
      limits: createTestResourceLimits(),
      timeouts: createTestTimeouts(),
      logging: createTestLoggingConfig(),
      security: createTestSecurityConfig(),
      performance: createTestPerformanceConfig()
    };
    
    expect(isValidToolConfiguration(config)).toBe(true);
  });
});
```

### 9.2 集成测试场景

#### 工具系统集成测试
```typescript
describe('Tool System Integration', () => {
  it('should execute tool with full validation chain', async () => {
    const toolEngine = new ToolExecutionEngine();
    const context = createExecutionContext({
      permissions: [ToolPermission.FILE_WRITE],
      securityLevel: SecurityLevel.STANDARD
    });
    
    const responses: ToolResponse[] = [];
    
    for await (const response of toolEngine.execute('edit', {
      file: '/test/file.txt',
      content: 'Hello, World!'
    }, context)) {
      responses.push(response);
    }
    
    expect(responses).not.toBeEmpty();
    expect(responses[responses.length - 1].status).toBe(ToolResponseStatus.SUCCESS);
  });
  
  it('should handle tool pipeline execution', async () => {
    const pipeline: ToolPipeline = {
      id: 'test-pipeline',
      name: 'File Processing Pipeline',
      steps: [
        { toolName: 'read', parameters: { file: 'input.txt' } },
        { toolName: 'edit', parameters: { file: 'output.txt', content: '${prev.content}' } },
        { toolName: 'bash', parameters: { command: 'wc -l output.txt' } }
      ],
      errorHandling: ErrorHandlingStrategy.FAIL_FAST,
      parallelism: ParallelismStrategy.SEQUENTIAL
    };
    
    const results: PipelineResult[] = [];
    
    for await (const result of toolEngine.executePipeline(pipeline)) {
      results.push(result);
    }
    
    expect(results).toHaveLength(3);
    expect(results.every(r => r.success)).toBe(true);
  });
});
```

### 9.3 验收标准定义

#### 类型安全验收标准
- **编译时类型检查**: 100%通过，零类型错误
- **运行时验证**: > 99.9%成功率
- **接口一致性**: 100%的工具都实现标准接口
- **权限验证**: 100%的权限检查都通过类型验证

#### 性能验收标准
- **工具初始化时间**: P95 < 1秒
- **验证链执行时间**: P99 < 2秒
- **状态追踪开销**: < 执行时间的5%
- **类型检查开销**: < 编译时间的10%

#### 功能验收标准
- **九层验证覆盖**: 100%的工具执行都经过完整验证
- **文件状态追踪**: 100%的文件操作都有状态记录
- **错误恢复**: > 95%的可恢复错误成功恢复
- **权限控制**: 100%的权限检查生效

## 10. AI编译器指令

### 10.1 实现语言选择
- **主语言**: TypeScript 5.0+，启用最严格的类型检查
- **泛型系统**: 广泛使用泛型和条件类型实现类型安全
- **装饰器**: 使用装饰器实现验证、权限检查、监控等横切关注点
- **元编程**: 使用TypeScript的元编程特性实现动态工具注册

### 10.2 代码风格要求
- **接口设计**: 优先使用interface定义公开接口
- **类型组合**: 使用union、intersection等类型操作符
- **错误处理**: 建立完整的错误类型层次结构
- **文档注释**: 每个公开类型都有完整的JSDoc文档

### 10.3 部署方式规范
- **模块化设计**: 每个工具类型独立模块，支持按需加载
- **类型声明**: 提供完整的.d.ts类型声明文件
- **运行时支持**: 提供必要的运行时类型检查和验证
- **性能优化**: 使用类型品牌和类型保护优化运行时性能

### 具体实现示例

#### 完整的工具类型系统实现
```typescript
// src/types/tool.ts

// 基础类型导入
import type { EventEmitter } from 'events';
import type { AgentContext, TaskReference } from './agent-types';

// 工具类型枚举
export enum ToolType {
  FILE_SYSTEM = 'file_system',
  CODE_EXECUTION = 'code_execution',
  NETWORK = 'network',
  DATA_PROCESSING = 'data_processing',
  USER_INTERACTION = 'user_interaction',
  SYSTEM_OPERATION = 'system_operation'
}

// 具体工具名称
export enum SpecificToolType {
  EDIT = 'edit',
  READ = 'read',
  WRITE = 'write',
  BASH = 'bash',
  SEARCH = 'search',
  TASK = 'task'
}

// 工具ID品牌类型
export type ToolID = string & { readonly __brand: 'ToolID' };
export type ToolRequestID = string & { readonly __brand: 'ToolRequestID' };

// 核心工具接口
export interface ITool extends EventEmitter {
  readonly id: ToolID;
  readonly name: string;
  readonly type: ToolType;
  readonly version: string;
  readonly capabilities: readonly ToolCapability[];
  readonly status: ToolStatus;
  readonly metadata: Readonly<ToolMetadata>;
  
  // 生命周期方法
  initialize(context: ToolExecutionContext): Promise<void>;
  validate(request: ToolRequest): Promise<ValidationChainResult>;
  execute(request: ToolRequest): AsyncGenerator<ToolResponse>;
  dispose(): Promise<void>;
  
  // 状态管理
  getStatus(): ToolStatus;
  getHealth(): Promise<ToolHealth>;
  getMetrics(): Promise<ToolMetrics>;
  
  // 配置管理
  updateConfiguration(config: Partial<ToolConfiguration>): Promise<void>;
  getConfiguration(): Readonly<ToolConfiguration>;
}

// 条件类型：根据工具名称返回对应的工具实例
export type ToolByName<T extends string> = 
  T extends 'edit' ? EditTool :
  T extends 'read' ? ReadTool :
  T extends 'write' ? WriteTool :
  T extends 'bash' ? BashTool :
  T extends 'search' ? SearchTool :
  T extends 'task' ? TaskTool :
  ITool;

// 条件类型：根据工具名称返回对应的请求类型
export type ToolRequestByName<T extends string> = 
  T extends 'edit' ? EditToolRequest :
  T extends 'read' ? ReadToolRequest :
  T extends 'write' ? WriteToolRequest :
  T extends 'bash' ? BashToolRequest :
  T extends 'search' ? SearchToolRequest :
  T extends 'task' ? TaskToolRequest :
  ToolRequest;

// 九层验证系统
export enum ValidationLayer {
  LAYER_1_SYNTAX = 1,
  LAYER_2_SEMANTIC = 2,
  LAYER_3_PERMISSION = 3,
  LAYER_4_RESOURCE = 4,
  LAYER_5_DEPENDENCY = 5,
  LAYER_6_SECURITY = 6,
  LAYER_7_PERFORMANCE = 7,
  LAYER_8_CONSISTENCY = 8,
  LAYER_9_INTEGRITY = 9
}

// 验证器接口（泛型）
export interface IValidator<TInput = any, TContext = ValidationContext> {
  readonly layer: ValidationLayer;
  readonly name: string;
  readonly required: boolean;
  
  validate(input: TInput, context: TContext): Promise<ValidationResult>;
  getDescription(): string;
}

// 文件状态追踪系统
export interface IFileStateTracker {
  trackRead(filePath: string): Promise<FileState>;
  getState(filePath: string): FileState | null;
  validateState(filePath: string, expectedHash?: string): Promise<boolean>;
  clearState(filePath: string): void;
  
  // 状态变更监听（类型安全）
  onStateChange(
    filePath: string, 
    callback: (event: StateChangeEvent) => void
  ): () => void;
  
  // 批量操作
  trackMultiple(filePaths: readonly string[]): Promise<ReadonlyMap<string, FileState>>;
  validateMultiple(
    states: ReadonlyMap<string, string>
  ): Promise<ReadonlyMap<string, boolean>>;
}

// 工具权限系统
export interface IToolPermissionManager {
  checkPermission<T extends ToolPermission>(
    toolName: string,
    permission: T,
    context: PermissionContext
  ): Promise<boolean>;
  
  grantPermission<T extends ToolPermission>(
    toolName: string,
    permission: T,
    context: PermissionContext
  ): Promise<void>;
  
  revokePermission<T extends ToolPermission>(
    toolName: string,
    permission: T,
    context: PermissionContext
  ): Promise<void>;
  
  listPermissions(
    toolName: string,
    context: PermissionContext
  ): Promise<readonly ToolPermission[]>;
}

// 类型保护函数
export function isTool(obj: any): obj is ITool {
  return obj && 
    typeof obj.name === 'string' &&
    typeof obj.execute === 'function' &&
    Array.isArray(obj.capabilities);
}

export function isEditTool(tool: ITool): tool is EditTool {
  return tool.name === 'edit';
}

export function isReadTool(tool: ITool): tool is ReadTool {
  return tool.name === 'read';
}

export function isValidationResult(obj: any): obj is ValidationResult {
  return obj &&
    typeof obj.isValid === 'boolean' &&
    Array.isArray(obj.errors);
}

// 高级类型操作
export type ExtractToolResponse<T> = T extends AsyncGenerator<infer R> ? R : never;
export type ExtractToolParams<T> = T extends (request: infer P) => any ? P : never;

// 工具执行上下文（协变）
export interface ToolExecutionContext {
  readonly toolName: string;
  readonly requestId: ToolRequestID;
  readonly user: UserContext;
  readonly permissions: readonly ToolPermission[];
  readonly resourceLimits: ResourceLimits;
  readonly timeout: number;
  readonly traceId: string;
  readonly metadata: Readonly<Record<string, any>>;
}

// 类型安全的工具工厂
export interface ITypedToolFactory {
  createTool<T extends SpecificToolType>(
    type: T,
    config: ToolConfigurationByType<T>
  ): Promise<ToolByName<T>>;
  
  getTool<T extends string>(name: T): Promise<ToolByName<T> | null>;
  
  listTools<T extends ToolFilter>(
    filter?: T
  ): Promise<readonly ITool[]>;
}

// 工具链执行器
export interface IToolChainExecutor {
  executeChain<TInput, TOutput>(
    chain: ToolChain<TInput, TOutput>
  ): AsyncGenerator<ChainExecutionResult<TOutput>>;
  
  validateChain<TInput, TOutput>(
    chain: ToolChain<TInput, TOutput>
  ): Promise<ChainValidationResult>;
}

// 工具链定义（类型安全）
export interface ToolChain<TInput = any, TOutput = any> {
  readonly id: string;
  readonly name: string;
  readonly steps: readonly ChainStep[];
  readonly inputSchema: Schema<TInput>;
  readonly outputSchema: Schema<TOutput>;
  readonly errorHandling: ErrorHandlingStrategy;
}

// 运行时类型验证装饰器
export function ValidateInput<T>(schema: Schema<T>) {
  return function <K extends string, F extends (...args: any[]) => any>(
    target: any,
    propertyKey: K,
    descriptor: TypedPropertyDescriptor<F>
  ) {
    const originalMethod = descriptor.value!;
    
    descriptor.value = (function(...args: Parameters<F>): ReturnType<F> {
      // 运行时验证
      if (!schema.validate(args[0])) {
        throw new ToolValidationError(
          target.name,
          ValidationLayer.LAYER_1_SYNTAX,
          [{ isValid: false, errors: [], warnings: [], layer: ValidationLayer.LAYER_1_SYNTAX, context: {} }]
        );
      }
      
      return originalMethod.apply(this, args);
    }) as F;
  };
}

// 权限检查装饰器
export function RequirePermission<T extends ToolPermission>(permission: T) {
  return function (
    target: any,
    propertyKey: string,
    descriptor: PropertyDescriptor
  ) {
    const originalMethod = descriptor.value;
    
    descriptor.value = async function(...args: any[]) {
      const context = this.getExecutionContext();
      
      if (!context.permissions.includes(permission)) {
        throw new ToolPermissionError(
          this.name,
          permission,
          context.permissions
        );
      }
      
      return originalMethod.apply(this, args);
    };
  };
}

// 性能监控装饰器
export function MonitorPerformance(metricName: string) {
  return function (
    target: any,
    propertyKey: string,
    descriptor: PropertyDescriptor
  ) {
    const originalMethod = descriptor.value;
    
    descriptor.value = async function(...args: any[]) {
      const startTime = performance.now();
      
      try {
        const result = await originalMethod.apply(this, args);
        const duration = performance.now() - startTime;
        
        this.recordMetric(metricName, duration);
        return result;
      } catch (error) {
        const duration = performance.now() - startTime;
        this.recordError(metricName, error, duration);
        throw error;
      }
    };
  };
}

// 类型安全的事件系统
export interface ToolEventMap {
  'status-change': [ToolStatus, ToolStatus];
  'execution-start': [ToolRequestID];
  'execution-complete': [ToolRequestID, ToolResponse];
  'execution-error': [ToolRequestID, ToolError];
  'validation-failed': [ValidationChainResult];
  'permission-denied': [ToolPermission, PermissionContext];
  'health-change': [ToolHealth];
  'metrics-updated': [ToolMetrics];
}

export interface TypedToolEventEmitter extends TypedEventEmitter<ToolEventMap> {}

// 导出所有类型
export type {
  // 核心接口
  ITool,
  IToolFactory,
  ITypedToolFactory,
  
  // 验证系统
  IValidator,
  ValidationChainResult,
  ValidationResult,
  
  // 状态追踪
  IFileStateTracker,
  FileState,
  StateChangeEvent,
  
  // 权限系统
  IToolPermissionManager,
  ToolPermission,
  PermissionContext,
  
  // 执行系统
  ToolExecutionContext,
  ToolRequest,
  ToolResponse,
  
  // 配置系统
  ToolConfiguration,
  ToolMetadata,
  
  // 错误系统
  ToolError,
  ToolValidationError,
  ToolExecutionError,
  
  // 工具链
  ToolChain,
  ChainStep,
  ChainExecutionResult
};
```

这个完整的工具类型系统提供了：

1. **完整的类型安全**: 从编译时到运行时的全面类型保护
2. **九层验证机制**: 严格的验证层次结构和类型定义
3. **文件状态追踪**: 强制的文件状态管理和类型安全的API
4. **权限控制**: 类型安全的权限检查和管理系统
5. **性能监控**: 内置的性能指标收集和类型定义
6. **扩展性**: 支持新工具类型的无缝集成和类型推断
7. **开发体验**: 完整的IDE支持和智能提示