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fix(ai-sdk): spawn the MCP server without requiring a build #507

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Merged
brianstrauch merged 2 commits into from
Aug 10, 2026
Merged

fix(ai-sdk): spawn the MCP server without requiring a build #507

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d32c82b
fix(ai-sdk): spawn the MCP server without requiring a build
brianstrauch Aug 10, 2026
e6905a9
Remove verbose comments in snipsync area
brianstrauch Aug 10, 2026
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3 changes: 2 additions & 1 deletion ai-sdk/src/mcp-server.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -46,7 +46,8 @@ server.registerTool(
async function main() {
const transport = new StdioServerTransport();
await server.connect(transport);
console.log('Pokemon MCP Server running on stdio');
// Log to stderr: stdout is the JSON-RPC channel for a stdio MCP server.
console.error('Pokemon MCP Server running on stdio');
}

main().catch((error) => {
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11 changes: 9 additions & 2 deletions ai-sdk/src/worker.ts
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Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@
import path from 'node:path';
import { NativeConnection, Worker } from '@temporalio/worker';
import * as activities from './activities';
import { AiSdkPlugin } from '@temporalio/ai-sdk';
Expand All @@ -12,12 +13,18 @@ async function run() {
try {
// This is only used by the MCP Sample
// @@@SNIPSTART typescript-vercel-ai-sdk-mcp-client-factories
const mcpServerPath = require.resolve('./mcp-server');
const mcpServerArgs = mcpServerPath.endsWith('.ts')
? ['-r', require.resolve('ts-node/register'), mcpServerPath]
: [mcpServerPath];

const mcpClientFactories = {
testServer: () =>
createMCPClient({
transport: new StdioClientTransport({
command: 'node',
args: ['lib/mcp-server.js'],
command: process.execPath,
args: mcpServerArgs,
cwd: path.resolve(__dirname, '..'),
}),
}),
};
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