use read-installed to get metadata on packages

https://npmjs.org/package/read-installed

if you require('read-installed') and run it on a directory it gives you the metadata of every installed node module in the current directory tree

Start by reading the linked read-installed package documentation, then inspect the repository to find where installed package information is currently gathered or exposed. No file, entry point, or test is named in the issue, so first identify the relevant integration point; done means metadata for every installed Node module in the current directory tree is available there.

Written by the indexing model from the issue text.