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.

The type signature language for Ruby

01Result

ruby/rbs ↗

ruby/rbs AI coding statistics: 34.9%

of 373 commits in February–September 15, 2026 were committed by an AI agent — a floor, not an estimate

34.9% agent · top contributor 53.8%9 contributors

team

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

130

agent commits

243

other considered commits

agent contributors

53.8%

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

130assisted

0autonomous

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: 86.7%. Bars are scaled to that peak, not to 100%.

Which agents

Agent	Vendor	Commits	Share
Claude Code	Anthropic	130	34.9%

03Evidence

Inspect the matches

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

Matched commit samples

d1fdb1bb on GitHubTest that `rbs collection clean` removes unneeded directoriesClaude Code
28e871aa on GitHubRemove the resolved TODO from Sources::LocalClaude Code
f53fe761 on GitHubUpdate Steep to 2.1 and drop the version constraintsClaude 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	674
Merge commits removed	−269
CI / dependency bots removed	−32
Considered	373

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 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 ruby/rbs

Scan another repository

Try

Month	Agent share	Considered commits
2026-02	0%	28
2026-03	0%	66
2026-04	34%	50
2026-05	28.6%	35
2026-06	31.7%	60
2026-07	86.7%	45
2026-08	48.1%	77
2026-09	66.7%	12