Function ignoreClose

packages/hosts/mcp/src/in-memory-session-store.ts:180–200

(
  sessionId: string | null,
  handle: string,
  close: (() => Promise<void>) | undefined,
)

 * nothing can see, so name the handle and the session in a warning.
 */
const ignoreClose = (
  sessionId: string | null,
  handle: string,
  close: (() => Promise<void>) | undefined,
): Promise<void> => {
  if (!close) return Promise.resolve();
  const warn = (detail: unknown): Effect.Effect<void> =>
    Effect.sync(() => {
      console.warn(
        `[mcp] failed to close ${handle} for session ${sessionId ?? "<uninitialized>"}:`,
        formatBoundaryError(detail),
      );
    });
  return Effect.runPromise(
    Effect.tryPromise({ try: close, catch: (cause) => new McpHandleCloseError({ cause }) }).pipe(
      Effect.catch((error) => warn(error.cause)),
      // A defect cannot escape either: this runs detached from any request.
      Effect.catchCause((cause) => warn(Cause.squash(cause))),
    ),
  );
};

// The store's error bodies are INNER responses (no CORS): the serving envelope
// re-wraps the store `Response` with CORS before it leaves the origin, so the