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

fastrepl/anarlog

In Survival Report #4 (2026-10-05, method v3): 523,988 of 825,505 lines introduced by 1,501 AI-tagged commits are still at HEAD, 63.5 %. 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

1,501AI-tagged commits · of 9,748 825,505lines introduced by them 523,988still attributed to them at HEAD 63.5 %line-weighted 12.4 %median per commit 15 %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: 8,247 commits, 3,517,364 lines introduced, 1,728,968 still at HEAD (49.2 % line-weighted, 1.1 % median per commit). Age is the time from a commit to HEAD. Method v3; definition at causari.dev/method.

Age-matched: AI-tagged lines 63.5 % against untagged lines of the same age 53.8 %, a gap of +9.7 pts, over 4 age windows holding 100 % of the AI-tagged lines.

Line ageAI-taggedcommitsUntaggedcommits
0–30 d82.5 %18984.9 %367
30–90 d70.7 %15371.5 %1,180
90–180 d15.6 %1450.5 %940
180–365 d49.3 %1,14525.5 %3,088
365–730 d—032.8 %2,672

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-code3119,95215,48777.6 %62.3 %
cursor194446,736342,38476.6 %66.5 %
devin1,271358,438165,81146.3 %40.2 %
openai-codex537930680.7 %80.7 %

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 61.6 %; #3 62.9 %; #4 63.5 %
ReportDateAI-tagged commitsLines introducedStill at HEADLine-weighted
Survival Report #22026-09-231,356706,569434,99261.6 %
Survival Report #32026-09-281,402749,201471,06062.9 %
Survival Report #42026-10-051,501825,505523,98863.5 %

Reproduce

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

re audit fastrepl/anarlog --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 63.5 % · causari · #4 AI code survival 63.5 % · causari · #4, paper on ink

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

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: 1,501 AI-tagged commits; the sample floor is 5. At or above the floor, so the ratio is aggregated into the report.
  • PROBABLE: No PROBABLE commits: every counted commit carries machine-readable AI authorship metadata.
  • Cap: 1,510 lines per commit in this repository; the capped ratio is 47.6 %.
  • .git-blame-ignore-revs: not present in this repository.