The package: protocol lets you access an installed npm package by name. The package name can be a single string name, or a two part name with an npm organization and a package name.
This returns the default export(s) of the indicated npm package. You can then further traverse the exports using slash path syntax.
For example, if you install the Origami @weborigami/screenshot extension using npm, you can invoke that extension’s url screenshot function using the package: protocol:
$ ori "package:@weborigami/screenshot/url('https://example.com')" > example.png