Function looksLikeUsageError

cli/src/index.ts:94–99

(error: unknown)

  }

  const maybeError = error as Record<string, unknown>;
  return typeof maybeError.exitCode === 'number' && typeof maybeError.message === 'string';
}

function looksLikeUsageError(error: unknown): error is Error {
  return (
    error instanceof Error &&
    /(missing required argument|unknown option|too many arguments|option .* argument missing)/i.test(error.message)
  );