index.ts•2.23 kB
import { config } from "dotenv";
import { Server } from "@modelcontextprotocol/sdk/server/index.js";
// Load environment variables from .env file
config();
import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";
import { CallToolRequestSchema, ListToolsRequestSchema } from "@modelcontextprotocol/sdk/types.js";
import { loadConfig } from "./config/config.js";
import { TOOL_DEFINITIONS } from "./tools/index.js";
// Ensure proper environment setup
function ensureEnvironment() {
// Ensure PATH is available
if (!process.env.PATH) {
// Provide sensible defaults for PATH on different platforms
if (process.platform === 'win32') {
process.env.PATH = [
process.env.SystemRoot + '\\System32',
process.env.SystemRoot,
process.env.SystemRoot + '\\System32\\Wbem',
'C:\\Program Files\\nodejs'
].join(';');
} else {
process.env.PATH = '/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin';
}
}
// Set UTF-8 encoding for stdio
if (process.stdout.isTTY) {
process.stdout.setDefaultEncoding('utf8');
}
if (process.stderr.isTTY) {
process.stderr.setDefaultEncoding('utf8');
}
}
async function main() {
// Ensure environment is properly set up
ensureEnvironment();
const config = loadConfig();
const server = new Server(
{
name: "placid-server",
version: "1.0.0",
},
{
capabilities: {
tools: {},
},
}
);
// Register tools
server.setRequestHandler(ListToolsRequestSchema, async () => ({
tools: TOOL_DEFINITIONS,
}));
server.setRequestHandler(CallToolRequestSchema, async (request) => {
const tool = TOOL_DEFINITIONS.find((t) => t.name === request.params.name);
if (!tool) {
throw new Error(`Tool not found: ${request.params.name}`);
}
// Cast arguments to any since each tool handler will validate its own args
return tool.handler(request.params.arguments as any, config);
});
const transport = new StdioServerTransport();
await server.connect(transport);
console.error("Placid MCP Server running on stdio");
}
main().catch((error) => {
console.error("Fatal error in main():", error);
process.exit(1);
});