license: mit
language:
- en
pretty_name: install-graph
size_categories:
- 1K<n<10K
tags:
- npm
- software-supply-chain
- dependencies
- node-modules
configs:
- config_name: projects
data_files:
- split: train
path: out/projects.json
- config_name: frontend_a
data_files:
- split: train
path: out/packages-frontend-a.json
install-graph
Author: Dmitriy Semenkevich (dimhold)
This dataset measures what is physically installed in node_modules for 5 real projects, walked on disk rather than read from a lock file.
Headline, from the repository: "In a working Angular front end, 532 of the 1,729 installed packages are second and third copies of a name already present. They take 52.2 MB and 7,904 files", 14.4% of everything in node_modules. Nothing in this dataset was generated by a model.
This is a mirror. The canonical home is the Zenodo record and the GitHub repository; criteria, limitations and full tables live there.
- Paper: https://dimhold.by/papers/install-graph/
- Code and full write up: https://github.com/dimhold/install-graph
- DOI: https://doi.org/10.5281/zenodo.22128826
Files
| path | what it is |
|---|---|
out/projects.json |
one row per project: installed packages, distinct names, duplicate copies and bytes, depth |
out/results.json |
the joined analysis output |
out/packages-*.json |
every installed package per project with version, nesting, bytes and files |
out/all-names.txt |
the distinct package names across projects |
Files ending in .jsonl here are .ndjson in the GitHub repository, renamed so the viewer reads them; the content is unchanged.
How it was produced
scan.mjs walks node_modules on disk and analyze.mjs joins the scan with registry metadata. The counting rules and the disproof condition were committed before the first number (CRITERIA.md in the repository). Not mirrored here: out/maintainers.jsonl, the per package npm registry pull with the public account names of about 600 maintainers; it is third party registry metadata and stays in the GitHub repository. The scripts that turn these files into every number are in the GitHub repository. One of the 5 scanned projects is a private repository; its name is written as cli-tool everywhere, including out/packages-cli-tool.json. Its counts are unchanged.
Licence
MIT, the licence of the repository, covering code and data.
Citation
@misc{semenkevich2026installgraph,
author = {Semenkevich, Dmitriy},
title = {install-graph: a seventh of node_modules is the same package, twice},
year = {2026},
doi = {10.5281/zenodo.22128826},
url = {https://doi.org/10.5281/zenodo.22128826}
}