and example repo to figure out if there is a bug in the resolving of dependencies with a file refernce in package.json

Your able to run parcel and it will find the parcel-plugin-example.

give and error message:

error Couldn't find package "parcel-plugin-example" on the "npm" registry.

cd parcel-example
yarn install
yarn start

yarn install will find the parcel-plugin-example and install it. But parcel is still complaining