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 highly extensible Markdown editor featuring version control, AI Copilot, document annotations, mind maps, document encryption, executable code snippets, chart embedding, HTML applets, plugins, and macro replacement. Its integrated sidebar terminal makes working with AI faster and more convenient.

01Result

purocean/yn ↗

purocean/yn AI coding statistics: 15.8%

of 101 commits in February–September 15, 2026 were committed by an AI agent — a floor, not an estimate

15.8% agent · top contributor 87.5%2 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

87.5%

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

2assisted

14autonomous

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
GitHub Copilot	GitHub	16	15.8%

03Evidence

Inspect the matches

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

Matched commit samples

fbc958cc on GitHubtest: fix export service mocksGitHub Copilot
a7a3ffa5 on GitHubfix: allow programmatic updates in readonly modeGitHub Copilot
1d8a0dcd on GitHubAdd overflow-x: clip to .xterm-screen to prevent IME layout shiftGitHub 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	190
Merge commits removed	−53
CI / dependency bots removed	−36
Considered	101

Bots are excluded from the denominator entirely. Agent attribution requires a literal supported signature; no code-style inference is used.

Continue exploring

GitHub Copilot commitsBrowse repositories with detected GitHub Copilot signatures →TypeScript AI coding statisticsCompare evidence across TypeScript 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 purocean/yn

Scan another repository

Try

Month	Agent share	Considered commits
2026-03	100%	2
2026-04	66.7%	3
2026-05	11.4%	79
2026-06	100%	1
2026-07	0%	10
2026-09	33.3%	6