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.

Coz: Causal Profiling

01Result

plasma-umass/coz ↗

plasma-umass/coz AI coding statistics: 80.3%

of 76 commits in February–September 15, 2026 were committed by an AI agent — a floor, not an estimate

Too little recent activity to publish. Only 76 commits landed in this window, so the percentage is noisy. Repositories below 100 are excluded from the index for this reason.

80.3% agent · top contributor 88.5%4 contributors

individual

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

agent commits

other considered commits

agent contributors

88.5%

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

59assisted

2autonomous

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: 95.8%. Bars are scaled to that peak, not to 100%.

Which agents

Agent	Vendor	Commits	Share
Claude Code	Anthropic	59	77.6%
GitHub Copilot	GitHub	2	2.6%

03Evidence

Inspect the matches

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

Matched commit samples

299ffc13 on GitHubci: trigger checks against retargeted baseClaude Code
1eb5a372 on GitHubScale macOS sample delays by the sampler's measured cadenceClaude Code
a84e9cf6 on GitHubci: nudge workflow trigger after rebaseClaude Code
dc61dd2f on GitHubci: accept both libcoz shared library suffixesGitHub Copilot
5259a26e on GitHubci: set least-privilege workflow token permissionsGitHub 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	107
Merge commits removed	−31
CI / dependency bots removed	−0
Considered	76

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 plasma-umass/coz

Scan another repository

Try

Month	Agent share	Considered commits
2026-02	87.2%	39
2026-03	27.3%	11
2026-04	50%	2
2026-07	95.8%	24