Dataset: 2026-10-27-catalog-ai-v2
Ruleset: b2e8889c66f7
Scanned: 2026-10-27
Window: February–September 15, 2026

Catalog tracking observation. This repository is measured with the same fixed window and ruleset, but it is not part of the published benchmark or its aggregate claims.

ALIEN is a CUDA-powered artificial life simulation program.

01Result

chrxh/alien ↗

chrxh/alien AI coding statistics: 46.3%

of 1,666 commits in February–September 15, 2026 were committed by an AI agent — a floor, not an estimate

46.3% agent · top contributor 66.3%2 contributors

individual

One person is driving this. The headline number reflects a single contributor's workflow, not a project-wide shift.

772

agent commits

894

other considered commits

agent contributors

66.3%

largest contributor

02Drivers

What shapes this result

Mode, timing, and detected signatures show whether the result reflects broad adoption or one concentrated workflow.

Assisted or autonomous

260assisted

512autonomous

Assisted — a developer’s identity authored the commit and the agent added itself as co-author. Autonomous — a bot identity authored the commit without a human identity attached.

Agent share by month

Peak month: 61.9%. Bars are scaled to that peak, not to 100%.

Which agents

Agent	Vendor	Commits	Share
GitHub Copilot	GitHub	512	30.7%
Claude Code	Anthropic	260	15.6%

03Evidence

Inspect the matches

Public commit samples let you inspect the signatures behind the aggregate result.

Matched commit samples

4c231aa8 on GitHubFix constructor mutation test expectationGitHub Copilot
57e71679 on GitHubFix cell signalChanges transferGitHub Copilot
9d4a87ad on GitHubFix constructor auto-trigger mutationGitHub Copilot
baab1087 on GitHubShorten commentClaude Code
d3ec5087 on GitHubBuild the Docker image for sm_75 as wellClaude Code
3d14c04f on GitHubKeep nvcc --threads out of the CUDA device linkClaude Code

04Method

What entered the denominator

The result begins with commit history, removes merges and routine automation, and reports literal agent signatures as a lower bound.

Exclusion ledger

Commits in window	2,090
Merge commits removed	−368
CI / dependency bots removed	−56
Considered	1,666

Bots are excluded from the denominator entirely. Agent attribution requires a literal supported signature; no code-style inference is used.

Continue exploring

Claude Code commitsBrowse repositories with detected Claude Code signatures →GitHub Copilot commitsBrowse repositories with detected GitHub Copilot signatures →C++ AI coding statisticsCompare evidence across C++ repositories →GitHub AI commit analyzerInspect another repository with the same evidence model →

Reproduce this observation

Run the same detector locally.

Deterministic signature matching; no code-style inference. Squash merges can remove trailers, so this result remains a measured floor.

npx qmmit-cli chrxh/alien

Scan another repository

Try

Month	Agent share	Considered commits
2026-02	42.6%	258
2026-03	61.9%	289
2026-04	44.9%	118
2026-05	50%	288
2026-06	48.4%	279
2026-07	44.8%	174
2026-08	24.3%	152
2026-09	33.3%	108