Install typings.

$ npm install typings -g

Check the install.

$ typings -v
1.3.1

Install a single typscript definition file.

$ typings install github:aurelia/framework --save

This installs the .d.ts file into the Typings directory. Your directory structure will look like this:

node_modules    // for npm
typings         // for typings
    globals
    modules
    index.d.ts
package.json    // for npm
typings.json    // for typings