Generates codenames. What for, you ask?

$ npm install -g codename

From node,

var codename = require('codename')();

var filters = ['alliterative', 'random'],
    lists = ['crayons', 'adjectives', 'cities', 'animals'],
    myName = codename.generate(filters, lists);

codename.generate takes two options: filters and lists.

• filters (Array[String|Function]) - describes a set of filters that should be used to reduce each list to a single word

• lists - (Array[String|Array]) - the names or contents of the lists to use for selecting names

All arguments are forwarded from comma-delimited strings:

$ codename \
  --lists=crayons,adjectives,cities,animals \
  --filters=alliterative,unique,random

Each filter takes a memo listing any other words selected followed by the list of words the filter should be applied to. For instance, a filter to limit results to words containing the letter j:

var letterJFilter = function (memo, words) {
  return words.filter(function (w) {
    return w.toLowerCase().indexOf('j') > -1;
  });
};

Alternatively, a filter may return a single word that should be added to the name. These filters are output filters, and they should only be used at the end of a filter list.

Filters may be contributed to src/filters or supplied as function arguments to codename.generate.

• Adjectives from http://www.keepandshare.com/doc/12894/adjective-list
• Animals from http://en.wikipedia.org/wiki/Lists_of_animals
• Cities from http://answers.google.com/answers/threadview?id=596822
• Crayons from http://www.colourlovers.com/web/blog/2008/04/22/all-120-crayon-names-color-codes-and-fun-facts

• word lists (c) their respective authors
• codename released under the WTFPL