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 minimalist production ready plugin system

01Result

pytest-dev/pluggy ↗

pytest-dev/pluggy AI coding statistics: 70.4%

of 71 commits in February–September 15, 2026 were committed by an AI agent — a floor, not an estimate

Too little recent activity to publish. Only 71 commits landed in this window, so the percentage is noisy. Repositories below 100 are excluded from the index for this reason.

70.4% agent · top contributor 70%4 contributors

team

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

agent commits

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

50assisted

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

Which agents

Agent	Vendor	Commits	Share
Cursor Agent	Anysphere	29	40.8%
Claude Code	Anthropic	21	29.6%
GitHub Copilot	GitHub	1	1.4%

03Evidence

Inspect the matches

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

Matched commit samples

679a27e3 on GitHubAdd changelog fragment for getattr_static hook discoveryCursor Agent
c1c39fee on GitHubDiscover hooks via inspect.getattr_static instead of getattrCursor Agent
09676eef on GitHubAddress review: soften AttributeError comments and add descriptor testCursor Agent
aa6e1f43 on GitHubDo not bind callables stored on the plugin instanceClaude Code
21186ba2 on GitHublint: adapt tests to newer ruff after rebase onto mainClaude Code
0eaa5303 on GitHubAdd changelog fragment for #727Claude Code
5b9a37cb on GitHubApply suggestions from code reviewGitHub 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	134
Merge commits removed	−15
CI / dependency bots removed	−48
Considered	71

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 →Python AI coding statisticsCompare evidence across Python 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 pytest-dev/pluggy

Scan another repository

Try

Month	Agent share	Considered commits
2026-02	100%	1
2026-04	0%	1
2026-05	71.8%	39
2026-06	0%	1
2026-07	50%	2
2026-08	92.9%	14
2026-09	53.8%	13