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.

ClickHouse Java Clients & JDBC Driver

01Result

ClickHouse/clickhouse-java ↗

ClickHouse/clickhouse-java AI coding statistics: 1.6%

of 639 commits in February–September 15, 2026 were committed by an AI agent — a floor, not an estimate

1.6% agent · top contributor 70%3 contributors

individual

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

agent commits

629

other considered commits

agent contributors

70%

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

10assisted

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: 7.1%. Bars are scaled to that peak, not to 100%.

Which agents

Agent	Vendor	Commits	Share
Claude Code	Anthropic	8	1.3%
GitHub Copilot	GitHub	2	0.3%

03Evidence

Inspect the matches

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

Matched commit samples

7d2e944e on GitHubfix(client-v2): make Dynamic QBit encode/decode symmetric; validate QBit rClaude Code
53613806 on GitHubfix(client-v2, clickhouse-data): address QBit review — stride/element-typeClaude Code
65370442 on GitHubci(workflows): refresh ClickHouse LTS pins (EOL 25.3 → 26.3)Claude Code
26296c43 on GitHubPotential fix for pull request findingGitHub Copilot
c588bb51 on GitHubFix the file extension case.GitHub 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	1,061
Merge commits removed	−411
CI / dependency bots removed	−11
Considered	639

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 →Java AI coding statisticsCompare evidence across Java 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 ClickHouse/clickhouse-java

Scan another repository

Try

Month	Agent share	Considered commits
2026-01	0%	1
2026-02	0%	96
2026-03	0%	49
2026-04	0%	72
2026-05	0%	39
2026-06	0%	107
2026-07	7.1%	141
2026-08	0%	77
2026-09	0%	57