PRD Creator MCP Server

import { OpenAI } from 'openai'; import { AiProvider, AiProviderConfig, AiProviderOptions, PrdGenerationInput } from './provider.js'; import { logger } from '../../config/logging.js'; /** * OpenAI provider implementation */ export class OpenAiProvider implements AiProvider { readonly id = 'openai'; readonly name = 'OpenAI'; private client: OpenAI | null = null; private config: AiProviderConfig; constructor(config: AiProviderConfig) { this.config = config; if (!config.apiKey) { logger.error("[OpenAiProvider] Missing OpenAI API key (config.apiKey)! Provider will be unavailable."); throw new Error("Missing OpenAI API key. Set OPENAI_API_KEY in your environment."); } this.client = new OpenAI({ apiKey: config.apiKey, baseURL: config.baseUrl }); // Optionally: Validate model access on startup. Uncomment for deeper debugging. // (async () => { // try { // await this.client.models.list(); // } catch (e) { // logger.error(`[OpenAiProvider] Failed to list models with provided API key: ${e instanceof Error ? e.message : String(e)}`); // } // })(); } /** * Check if the provider is properly configured and available */ async isAvailable(): Promise<boolean> { return !!this.client; } /** * Generate a PRD using OpenAI's API */ async generatePrd(input: PrdGenerationInput, options?: AiProviderOptions): Promise<string> { if (!this.client) { throw new Error('OpenAI client not initialized. Check your API key configuration.'); } try { logger.info(`Generating PRD with OpenAI for product: ${input.productName}`); // Default options const defaultOptions = { temperature: 0.7, maxTokens: 4000, }; // Merge with user-provided options const mergedOptions = { ...defaultOptions, ...options }; // Format features and constraints as bullet points const featuresFormatted = input.coreFeatures.map(f => `• ${f}`).join('\n'); const constraintsFormatted = input.constraints ? input.constraints.map(c => `• ${c}`).join('\n') : 'None specified'; // Build system prompt const systemPrompt = `You are an expert product manager with deep experience in writing detailed, professional Product Requirements Documents (PRDs). Your task is to create a comprehensive PRD for the product described by the user. Structure the PRD with clear sections including: - Introduction and product overview - Target audience analysis - Detailed core features explanation - Technical and business constraints - Implementation considerations - Success metrics Use professional language, be thorough, and format the document in clean markdown.`; // Build user prompt const userPrompt = `Please create a detailed PRD for the following product: Product Name: ${input.productName} Product Description: ${input.productDescription} Target Audience: ${input.targetAudience} Core Features: ${featuresFormatted} Constraints: ${constraintsFormatted} ${input.additionalContext ? `Additional Context: ${input.additionalContext}` : ''} Format the PRD as a well-structured markdown document with appropriate headings, bullet points, and sections.`; // Call OpenAI const response = await this.client.chat.completions.create({ model: this.config.model || 'gpt-4', messages: [ { role: 'system', content: systemPrompt }, { role: 'user', content: userPrompt } ], temperature: mergedOptions.temperature, max_tokens: mergedOptions.maxTokens, }); // Extract PRD content from the response const prdContent = response.choices[0]?.message?.content || ''; if (!prdContent) { throw new Error('Empty response from OpenAI'); } logger.info(`PRD generated successfully for "${input.productName}" using OpenAI`); return prdContent; } catch (error) { logger.error(`Error generating PRD with OpenAI: ${error instanceof Error ? error.message : String(error)}`); throw new Error(`Failed to generate PRD with OpenAI: ${error instanceof Error ? error.message : 'Unknown error'}`); } } }