When I run 4.0.0 using the example from the readme, npx then it fails with
Error: Cannot find module 'esprima'
Installing with npm install code-complexity also does not pull it in. Explicitly installing with npm install esprima solves the issue.
I'm no nodejs expert, so I don't know how to present a fix for this -I'm not familiar with bundleDependencies- but I suspect something in the package.json is off, or some vendored package should be included.