Function isRateLimitError

src/utils/errors.ts:280–312

(error: unknown)

// Detect rate limit errors (429)
export function isRateLimitError(error: unknown): boolean {
  if (error instanceof RateLimitError) {
    return true;
  }

  if (error instanceof Error) {
    const message = error.message.toLowerCase();

    // Common patterns for rate limiting
    if (
      message.includes('rate limit') ||
      message.includes('rate_limit') ||
      message.includes('too many requests') ||
      message.includes('throttle')
    ) {
      return true;
    }

    // Check for 429 status
    if ('status' in (error as any) && (error as any).status === 429) {
      return true;
    }

    if ('response' in (error as any)) {
      const response = (error as any).response;
      if (response?.status === 429) {
        return true;
      }
    }
  }

  return false;
}

// Detect service unavailable errors (5xx)
export function isServiceUnavailableError(error: unknown): boolean {