Prompts MCP Server

/** * File operations for prompt management (CRUD operations) */ import fs from 'fs/promises'; import path from 'path'; import { PromptInfo } from './types.js'; import { PromptCache } from './cache.js'; export class PromptFileOperations { constructor( private promptsDir: string, private cache: PromptCache ) {} /** * Sanitize filename to be filesystem-safe */ private sanitizeFileName(name: string): string { return name.replace(/[^a-z0-9-_]/gi, '_').toLowerCase(); } /** * Ensure prompts directory exists */ private async ensurePromptsDir(): Promise<void> { try { await fs.access(this.promptsDir); } catch { await fs.mkdir(this.promptsDir, { recursive: true }); } } /** * List all prompts (uses cache for performance) */ async listPrompts(): Promise<PromptInfo[]> { // Initialize cache and file watcher if not already done if (this.cache.isEmpty()) { await this.cache.initializeCache(); this.cache.initializeFileWatcher(); } return this.cache.getAllPrompts(); } /** * Read a specific prompt by name */ async readPrompt(name: string): Promise<string> { const fileName = this.sanitizeFileName(name) + '.md'; const filePath = path.join(this.promptsDir, fileName); try { return await fs.readFile(filePath, 'utf-8'); } catch (error) { throw new Error(`Prompt "${name}" not found`); } } /** * Save a new prompt or update existing one */ async savePrompt(name: string, content: string): Promise<string> { await this.ensurePromptsDir(); const fileName = this.sanitizeFileName(name) + '.md'; const filePath = path.join(this.promptsDir, fileName); await fs.writeFile(filePath, content, 'utf-8'); return fileName; } /** * Save a new prompt with a custom filename */ async savePromptWithFilename(filename: string, content: string): Promise<string> { await this.ensurePromptsDir(); const sanitizedFileName = this.sanitizeFileName(filename) + '.md'; const filePath = path.join(this.promptsDir, sanitizedFileName); await fs.writeFile(filePath, content, 'utf-8'); return sanitizedFileName; } /** * Delete a prompt by name */ async deletePrompt(name: string): Promise<boolean> { const fileName = this.sanitizeFileName(name) + '.md'; const filePath = path.join(this.promptsDir, fileName); try { await fs.unlink(filePath); return true; } catch (error) { throw new Error(`Prompt "${name}" not found`); } } /** * Check if a prompt exists */ async promptExists(name: string): Promise<boolean> { const fileName = this.sanitizeFileName(name) + '.md'; const filePath = path.join(this.promptsDir, fileName); try { await fs.access(filePath); return true; } catch { return false; } } /** * Get prompt info from cache (if available) */ getPromptInfo(name: string): PromptInfo | undefined { return this.cache.getPrompt(name); } }