GPT-5.5 vs GPT-5.6 Terrafor coding

```ts
type RetryOptions = { attempts?: number; baseMs?: number; maxMs?: number };

const sleep = (ms: number) => new Promise(r => setTimeout(r, ms));

const statusOf = (x: any): number | undefined =>
  typeof x?.status === "number" ? x.status :
  typeof x?.response?.status === "number" ? x.response.status :
  undefined;

const isNonRetryable4xx = (s?: number) =>
  s !== 429 && s !== undefined && s >= 400 && s < 500;

export async function retry<T>(
  fn: () => Promise<T>,
  { attempts = 5, baseMs = 200, maxMs = 5000 }: RetryOptions = {}
): Prom…

```ts
type RetryOptions = {
  maxAttempts?: number;
  baseDelayMs?: number;
  maxDelayMs?: number;
};

export async function retry<T>(
  fn: () => Promise<T>,
  { maxAttempts = 5, baseDelayMs = 100, maxDelayMs = 10_000 }: RetryOptions = {}
): Promise<T> {
  if (maxAttempts < 1) throw new RangeError("maxAttempts must be >= 1");

  for (let attempt = 1; attempt <= maxAttempts; attempt++) {
    try {
      return await fn();
    } catch (error) {
      const e = error as { status?: number; response?: { status?: number } };
      const status = e.r…