Why create a new language? Let's use Perl!

You may create a module that will work as a wrapper around WWW::Mechanize. It will create the object and do all the other preliminary stuff, it will provide you with helper functions and throught AUTOLOAD it will allow you to call the $agent's methods as functions. So you end up with something like

use WWW:Mechanize::Simple;

get url => "http://perlmonks.org/index.pl?node=login",
    output="login.html";

submit form_name => "login", user=>"", passwd=>"",
    button=>"login", output=>"index.htm;

get url=>"http://www.perlmonks.org/index.pl?node=Newest Nodes",
    output=>"newest.html";
[download]

Aint that simple enough? And it should not be that hard to implement, you just need to initialize the object, create a few functions and use AUTOLOAD to pass the others to the $agent as methods. And that'll be it.