import { Client } from '@modelcontextprotocol/sdk/client/index.js'
import { StdioClientTransport } from '@modelcontextprotocol/sdk/client/stdio.js'
import type { McpToolResponse } from './types.ts'
/**
* Creates an MCP client connected to the server
*/
export async function createTestClient () {
const transport = new StdioClientTransport({
command: 'node',
args: ['--experimental-strip-types', 'src/index.ts']
})
const client = new Client({
name: 'test-client',
version: '1.0.0'
}, {
capabilities: {}
})
await client.connect(transport)
return client
}
/**
* Parses the tool response and extracts the JSON data
* @param result - The MCP tool response
* @returns Parsed data object
*/
export function parseToolResponse<T = any> (result: McpToolResponse): T {
const content = result.content[0]
if (!content?.text) {
throw new Error('Invalid tool response: missing content text')
}
// The response format is typically: "Header\n\nJSON"
const parts = content.text.split('\n\n')
const jsonString = parts.length > 1 ? parts[1] : parts[0]
return JSON.parse(jsonString ?? '{}') as T
}
