#!/usr/bin/env node
import { Server } from '@modelcontextprotocol/sdk/server/index.js';
import { StdioServerTransport } from '@modelcontextprotocol/sdk/server/stdio.js';
import { CallToolRequestSchema, ListToolsRequestSchema } from '@modelcontextprotocol/sdk/types.js';
import { tools } from './tools.js';
/**
* Create and configure the MCP server for local (stdio) use
*/
const server = new Server(
{
name: 'wcag-mcp',
version: '1.0.0',
},
{
capabilities: {
tools: {},
},
}
);
/**
* Handler for listing available tools
*/
server.setRequestHandler(ListToolsRequestSchema, async () => {
return {
tools: tools.map(tool => ({
name: tool.name,
description: tool.description,
inputSchema: tool.inputSchema
}))
};
});
/**
* Handler for calling tools
*/
server.setRequestHandler(CallToolRequestSchema, async (request) => {
const tool = tools.find(t => t.name === request.params.name);
if (!tool) {
throw new Error(`Unknown tool: ${request.params.name}`);
}
// Execute tool handler
return await tool.handler(request.params.arguments);
});
/**
* Start the server with stdio transport
*/
async function main() {
const transport = new StdioServerTransport();
await server.connect(transport);
console.error('wcag-mcp MCP server running on stdio');
}
main().catch((error) => {
console.error('Fatal error in main():', error);
process.exit(1);
});
