Filesystem MCP Server

import fs from 'fs/promises'; import { FileInfo } from './validation.js'; export async function getFileStats(filePath: string): Promise<FileInfo> { const stats = await fs.stat(filePath); return { size: stats.size, created: stats.birthtime, modified: stats.mtime, accessed: stats.atime, isDirectory: stats.isDirectory(), isFile: stats.isFile(), permissions: stats.mode.toString(8).slice(-3), }; } export async function readFileContent(filePath: string, encoding: string = 'utf-8'): Promise<string> { return await fs.readFile(filePath, encoding as BufferEncoding); } export async function writeFileContent(filePath: string, content: string): Promise<void> { try { await fs.writeFile(filePath, content, { encoding: 'utf-8', flag: 'wx' }); } catch (error) { if ((error as NodeJS.ErrnoException).code === 'EEXIST') { const tempPath = `${filePath}.${Math.random().toString(36).slice(2)}.tmp`; try { await fs.writeFile(tempPath, content, 'utf-8'); await fs.rename(tempPath, filePath); } catch (renameError) { try { await fs.unlink(tempPath); } catch {} throw renameError; } } else { throw error; } } }