Function handleMcpGet

packages/mcp/src/handler.ts:199–206

(
  _sessionManager: SessionManager,
  _req: IncomingMessage,
  res: ServerResponse,
)

 * SSE is not supported in stateless mode — all communication happens over POST.
 */
export async function handleMcpGet(
  _sessionManager: SessionManager,
  _req: IncomingMessage,
  res: ServerResponse,
): Promise<void> {
  res.writeHead(405, { 'Content-Type': 'application/json', Allow: 'POST, DELETE' });
  res.end(JSON.stringify({ error: 'SSE not supported — use POST for all requests' }));
}