repository · survival report #4 · 2026-10-05 · method v3 · unranked

ray-project/ray

In Survival Report #4 (2026-10-05, method v3): 329,573 of 528,742 lines introduced by 859 AI-tagged commits are still at HEAD, 62.3 %. These are counts, not grades. No rank, no colour, no verdict, and no comparison with any other repository on this page. Every number links to the audit bytes behind it and the method and its limits are public.

GitHub · latest.json · badge.svg · Survival Report #4 · all repositories · Atom feed

859AI-tagged commits · of 31,863 528,742lines introduced by them 329,573still attributed to them at HEAD 62.3 %line-weighted 89.5 %median per commit 27 %of introduced lines in the largest commit

Baseline: this repository's untagged lines

Commits with no machine-readable AI signal, human-written, inline-completed or untagged-agent code alike: 30,984 commits, 5,522,472 lines introduced, 2,164,669 still at HEAD (39.2 % line-weighted, 33.2 % median per commit). Age is the time from a commit to HEAD. Method v3; definition at causari.dev/method.

Age-matched: AI-tagged lines 62.3 % against untagged lines of the same age 65.1 %, a gap of -2.8 pts, over 5 age windows holding 100 % of the AI-tagged lines.

Line ageAI-taggedcommitsUntaggedcommits
0–30 d61.3 %13786.6 %219
30–90 d43.9 %16979.3 %496
90–180 d70.1 %29354.0 %785
180–365 d76.5 %18250.7 %2,319
365–730 d55.8 %7848.8 %4,545
730+ d—030.9 %22,620

By agent, in Survival Report #4

Alphabetical. A commit is attributed to the agent its metadata names; one agent per commit. VERIFIED commits only.

AgentCommitsLines introducedStill at HEADLine-weightedCapped
claude-code563469,676286,94761.1 %77.7 %
cursor258,1756,56880.3 %80.3 %
gemini23848,72034,94471.7 %73.5 %
github-copilot332,1711,11451.3 %56.7 %

History across reports

One row per report this repository was measured in, oldest first; each report measured HEAD as of its own date. The line is the line-weighted ratio on a fixed 0 – 100 % axis; each point is one report.

Line-weighted ratio across reports, 0 to 100 %: #2 64.6 %; #3 64.5 %; #4 62.3 %
ReportDateAI-tagged commitsLines introducedStill at HEADLine-weighted
Survival Report #22026-09-23797481,400311,20764.6 %
Survival Report #32026-09-28814495,301319,32164.5 %
Survival Report #42026-10-05859528,742329,57362.3 %

Reproduce

One command, any machine, no account: the same bytes the report was built from. The exact bytes behind this page are repos/ray-project__ray.json of Survival Report #4. Open an issue with your JSON if it differs.

re audit ray-project/ray --json   # method v3, full clone

Badge

Text only, one colour, no red and no green. It follows the latest report and is cached for one hour. badge-dark.svg is the same badge as paper on ink.

AI code survival 62.3 % · causari · #4 AI code survival 62.3 % · causari · #4, paper on ink

README · Markdown
[![AI code survival](https://causari.dev/r/ray-project/ray/badge.svg)](https://causari.dev/r/ray-project/ray/)

Coverage

  • Method v3, causari 0.3.0. Detection from commit metadata only; survival from git blame -w -M -C at HEAD.
  • Full clone: yes. Method v3 refuses shallow clones; this row comes from a complete history.
  • Sample: 859 AI-tagged commits; the sample floor is 5. At or above the floor, so the ratio is aggregated into the report.
  • PROBABLE: 20 PROBABLE commits (1,747 lines introduced, 1,094 still at HEAD) are listed here and never summed into the VERIFIED counts.
  • Cap: 1,280 lines per commit in this repository; the capped ratio is 76.8 %.
  • .git-blame-ignore-revs: honoured.