/**
 * Confirmation by multi round-trip, protocol revision 2026-07-28 (#341).
 *
 * On this revision a server may not push `elicitation/create` mid-call. It
 * answers `tools/call` with an `input_required` result instead; the client
 * fulfils the embedded request and RETRIES the original call, so the handler
 * runs a second time and has to recognise which half it is in.
 *
 * Driven directly rather than through a transport on purpose. Only HTTP mode
 * serves this era — stdio connects through the 2025 handshake and stays there
 * for the life of the connection — so a transport-level test would need the
 * whole OAuth-authenticated HTTP app to exercise four lines of branching.
 * `src/__tests__/http-interop.test.ts` covers the wiring end to end; this
 * covers the decisions.
 */
export {};