measured weekly · git metadata only · unranked · atom feed

Survival Report

Every week, one numbered report: for each measured open-source repository, how many lines were introduced by commits that carry machine-readable AI authorship metadata, and how many of those lines git blame still attributes to them at HEAD. These are counts, not grades. No rank, no colour, no verdict; rows are alphabetical; intervals describe the sampled repositories only. Every number is reproducible with one command and the method and its limits are public.

Atom feed · latest.json · how it is made · opt out (.github/survival-optout.txt)

Latest: Survival Report #1 · 2026-09-20 — 462,838 of 754,476 lines introduced by 12,349 AI-tagged commits in 10 open-source repositories are still at HEAD (61.3 %). 95 % interval over the sampled repositories: 53.0 % to 64.9 %.

All reports

Report	Date	Repositories	AI-tagged commits	Lines introduced	Still at HEAD	Line-weighted	Method	DOI
Survival Report #1	2026-09-20	10	12,349	754,476	462,838	61.3 %	v2	pending

The report replaced the weekly measurements table in September 2026. Repositories are added by pull request to .github/survival-repos.txt; maintainers opt out with one line in .github/survival-optout.txt.