Pulse
2026-09-18-v3.0
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.

roosterjs is a framework-independent javascript rich text editor.

01Result

microsoft/roosterjs ↗

microsoft/roosterjs AI coding statistics: 34.8%

of 132 commits in February–September 15, 2026 were committed by an AI agent — a floor, not an estimate
34.8% agent · top contributor 50%8 contributors
team

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

46
agent commits
86
other considered commits
8
agent contributors
50%
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

46assisted
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

Agent-attributed commit share by month
MonthAgent shareConsidered commits
2026-0211.8%17
2026-0343.5%23
2026-0433.3%6
2026-0564.7%17
2026-0650%20
2026-0736.8%19
2026-0820%20
2026-090%10

Peak month: 64.7%. Bars are scaled to that peak, not to 100%.

Which agents

AgentVendorCommitsShare
Claude CodeAnthropic2518.9%
GitHub CopilotGitHub2317.4%

03Evidence

Inspect the matches

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

Matched commit samples

  • aa540775 on GitHubAdd unit tests to increase coverage for plugins and editor-adapter (#3378)Claude Code
  • 62516e60 on GitHubRe-enable and stabilize previously-disabled tests (#3377)Claude Code
  • a41a6ea2 on GitHubRecognize escaped characters when converting markdown to Content Model (#3Claude Code
  • 60c449c2 on GitHubFix publish workflow install failure by removing registry-url from setup-nGitHub Copilot
  • c7f9fc0d on GitHubFix markdown horizontal rule detection (#3434)GitHub Copilot
  • 8d5e38c9 on GitHubFix text color turning black after pasting an image (#3433)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 window165
Merge commits removed−8
CI / dependency bots removed−25
Considered132

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 →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 microsoft/roosterjs

Scan another repository

Try