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.

A better build tool for Java, Scala and Kotlin: Simpler than Maven, easier than Gradle, with 3-7x faster dev workflows than other JVM build tools

01Result

com-lihaoyi/mill ↗

com-lihaoyi/mill AI coding statistics: 4.8%

of 251 commits in February–September 15, 2026 were committed by an AI agent — a floor, not an estimate

4.8% agent · top contributor 25%7 contributors

team

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

agent commits

239

other considered commits

agent contributors

25%

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

12assisted

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: 10.3%. Bars are scaled to that peak, not to 100%.

Which agents

Agent	Vendor	Commits	Share
Claude Code	Anthropic	9	3.6%
GitHub Copilot	GitHub	3	1.2%

03Evidence

Inspect the matches

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

Matched commit samples

b163a49a on GitHubBound execution-pool threads to --jobs on the uncontended fast path (#7170Claude Code
6616f891 on GitHubFix O(n^2) per-task scan in LeaseTracker.reacquireDropped (#7169)Claude Code
21611561 on GitHubFix fine-grained-locking BSP import deadlock (#7161)Claude Code
244aec08 on GitHubOptimize PromptLogger#logPrefixedLine for high-volume line output (#6966)GitHub Copilot
da857f6e on GitHubFix `mill show resolve <task>` printing both plain text and JSON to stdoutGitHub Copilot
5b1eb8a2 on GitHubAddress intermittent test failures of mill.integration.WatchInputTests (#6GitHub 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	253
Merge commits removed	−0
CI / dependency bots removed	−2
Considered	251

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 →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 com-lihaoyi/mill

Scan another repository

Try

Month	Agent share	Considered commits
2026-02	1.1%	92
2026-03	9.5%	42
2026-04	10.3%	39
2026-05	3.8%	78