graph TD
    A[MCP Server Layer] --> B[Tool Registry]
    B --> C[Operations Layer]
    C --> D[File System Operations]
    C --> E[Analysis Operations]
    C --> F[Stream Operations]

git clone 
cd filesystem-server

npm install

npm run build

{
  "mcpServers": {
    "filesystem": {
      "command": "node",
      "args": ["path/to/filesystem-server/build/index.js"]
    }
  }
}

interface ListDirectoryParams {
    path: string;       // Directory path
    recursive?: boolean; // List recursively (default: false)
}

interface ListDirectoryResult {
    entries: {
        name: string;
        path: string;
        isDirectory: boolean;
        size: number;
        created: string;
        modified: string;
        accessed: string;
        mode: string;
    }[];
}

interface CreateDirectoryParams {
    path: string;       // Directory path
    recursive?: boolean; // Create parent directories (default: true)
}

interface ReadFileParams {
    path: string;     // File path
    encoding?: string; // File encoding (default: 'utf8')
}

interface WriteFileParams {
    path: string;     // File path
    content: string;  // Content to write
    encoding?: string; // File encoding (default: 'utf8')
}

interface AppendFileParams {
    path: string;     // File path
    content: string;  // Content to append
    encoding?: string; // File encoding (default: 'utf8')
}

interface AnalyzeTextParams {
    path: string; // File path
}

interface AnalyzeTextResult {
    lineCount: number;
    wordCount: number;
    charCount: number;
    encoding: string;
    mimeType: string;
}

interface CalculateHashParams {
    path: string;           // File path
    algorithm?: 'md5' | 'sha1' | 'sha256' | 'sha512'; // Hash algorithm
}

interface CalculateHashResult {
    hash: string;
    algorithm: string;
}

interface FindDuplicatesParams {
    path: string; // Directory path
}

interface FindDuplicatesResult {
    duplicates: {
        hash: string;
        size: number;
        files: string[];
    }[];
}

interface CreateZipParams {
    files: string[];  // Files to include
    output: string;   // Output ZIP path
}

interface ExtractZipParams {
    path: string;    // ZIP file path
    output: string;  // Output directory
}

enum ErrorCode {
    ParseError = -32700,
    InvalidRequest = -32600,
    MethodNotFound = -32601,
    InvalidParams = -32602,
    InternalError = -32603
}

{
    "code": -32602,
    "message": "File not found: /path/to/file.txt"
}

src/
├── operations/     # Core operations implementation
├── tools/         # MCP tool definitions and handlers
├── __tests__/     # Test suites
├── index.ts       # Entry point
├── server.ts      # MCP server setup
├── types.ts       # Type definitions
└── utils.ts       # Utility functions

npm test

npm run test:coverage

npm run watch

npm run lint

npm run type-check