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.

Integration of React + Webpack + Rails including server-side rendering of React, enabling a better developer experience and faster client performance.

01Result

shakacode/react_on_rails ↗

shakacode/react_on_rails AI coding statistics: 48.7%

of 1,295 commits in February–September 15, 2026 were committed by an AI agent — a floor, not an estimate

48.7% agent · top contributor 79.1%6 contributors

team

A small group is using agents. Adoption has spread beyond one person but is not project-wide.

631

agent commits

664

other considered commits

agent contributors

79.1%

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

630assisted

1autonomous

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

Agent-attributed commit share by month
Month	Agent share	Considered commits
2026-01	100%	3
2026-02	71.6%	88
2026-03	66.2%	195
2026-04	88.4%	95
2026-05	59.9%	172
2026-06	37.5%	408
2026-07	29.6%	233
2026-08	25.5%	55
2026-09	28.3%	46

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

Which agents

Agent	Vendor	Commits	Share
Claude Code	Anthropic	631	48.7%
Cursor Agent	Anysphere	2	0.2%
GitHub Copilot	GitHub	1	0.1%

03Evidence

Inspect the matches

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

Matched commit samples

8c423c0e on GitHubPro dummy: update error-scenarios hub for post-#4631 reporter visibility (Claude Code
111de634 on GitHubFix authenticityHeaders() mutating its input object (#5065)Claude Code
29f39bfe on GitHubPro cache: promote aged L2 entries into L1 with remaining lifetime (#5029)Claude Code
b19b5cd8 on GitHubImprove create-react-on-rails-app fresh app onboarding (#2849)Cursor Agent
9a9c31ac on GitHubFix #2606: reduce doctor false positives for custom layouts (#2612)Cursor Agent
a34d7243 on GitHubFix precompile hook forcing UTF-8 onto non-UTF-8 (national) locales (#4244GitHub Copilot

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	1,306
Merge commits removed	−0
CI / dependency bots removed	−11
Considered	1,295

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 →Cursor Agent commitsBrowse repositories with detected Cursor Agent signatures →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 shakacode/react_on_rails

Scan another repository

Try