Function shouldRefreshToken

packages/core/sdk/src/oauth-helpers.ts:823–832

(input: {
  readonly expiresAt: number | null;
  readonly now?: number;
  readonly skewMs?: number;
})

 *  signal. Keep the two paths in sync — narrowing the reactive retry strands
 *  every null-expiry connection with no way to recover short of a reconnect. */
export const shouldRefreshToken = (input: {
  readonly expiresAt: number | null;
  readonly now?: number;
  readonly skewMs?: number;
}): boolean => {
  if (input.expiresAt === null) return false;
  const now = input.now ?? Date.now();
  const skew = input.skewMs ?? OAUTH2_REFRESH_SKEW_MS;
  return input.expiresAt <= now + skew;
};