ChatRPG

#!/usr/bin/env node /** * RPG-Lite MCP Server * Lightweight D&D 5e LLM-as-DM Engine * 50 Core Tools • Rich Markdown Output */ import { Server } from '@modelcontextprotocol/sdk/server/index.js'; import { StdioServerTransport } from '@modelcontextprotocol/sdk/server/stdio.js'; import { CallToolRequestSchema, ListToolsRequestSchema, } from '@modelcontextprotocol/sdk/types.js'; // Tool Registry (Static Loading) import { toolRegistry, handleToolCall } from './registry.js'; const server = new Server( { name: 'rpg-lite-mcp', version: '0.1.0', }, { capabilities: { tools: {}, }, } ); // List available tools server.setRequestHandler(ListToolsRequestSchema, async () => { try { const tools = Object.values(toolRegistry).map((tool) => ({ name: tool.name, description: tool.description, inputSchema: tool.inputSchema, })); console.error(`[MCP] Returning ${tools.length} tools`); return { tools }; } catch (error) { console.error('[MCP] Error listing tools:', error); throw error; } }); // Handle tool calls server.setRequestHandler(CallToolRequestSchema, async (request) => { const { name, arguments: args } = request.params; return handleToolCall(name, args); }); // Start server async function main() { const transport = new StdioServerTransport(); await server.connect(transport); console.error('🎲 RPG-Lite MCP Server running on stdio'); } main().catch((error) => { console.error('Fatal error:', error); process.exit(1); });