repository · survival report #3 · 2026-09-28 · method v3 · unranked

google/sam

In Survival Report #3 (2026-09-28, method v3): 96 of 247 lines introduced by 35 AI-tagged commits are still at HEAD, 38.9 %. 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 #3 · all repositories · Atom feed

35AI-tagged commits · of 1,479 247lines introduced by them 96still attributed to them at HEAD 38.9 %line-weighted 0.0 %median per commit 71 %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: 1,444 commits, 245,956 lines introduced, 149,619 still at HEAD (60.8 % line-weighted, 66.2 % median per commit). Age is the time from a commit to HEAD. Method v3; definition at causari.dev/method.

Age-matched: AI-tagged lines 38.9 % against untagged lines of the same age 33.8 %, a gap of +5.0 pts, over 3 age windows holding 100 % of the AI-tagged lines.

Line ageAI-taggedcommitsUntaggedcommits
0–30 d90.5 %979.7 %429
30–90 d57.1 %666.9 %551
90–180 d33.3 %2028.4 %464

By agent, in Survival Report #3

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

AgentCommitsLines introducedStill at HEADLine-weightedCapped
gemini33703144.3 %48.4 %
jules21776536.7 %36.7 %

History across reports

One row per report this repository was measured in, oldest first; each report measured HEAD as of its own date. A line appears once the repository has been measured in two reports.

ReportDateAI-tagged commitsLines introducedStill at HEADLine-weighted
Survival Report #32026-09-28352479638.9 %

Reproduce

One command, any machine, no account: the same bytes the report was built from. The exact bytes behind this page are repos/google__sam.json of Survival Report #3. Open an issue with your JSON if it differs.

re audit google/sam --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 38.9 % · causari · #3 AI code survival 38.9 % · causari · #3, paper on ink

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

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: 35 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: 12 lines per commit in this repository; the capped ratio is 42.2 %.
  • .git-blame-ignore-revs: not present in this repository.