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.

The full stack <head> package for any framework.

01Result

unjs/unhead ↗

unjs/unhead AI coding statistics: 4.2%

of 330 commits in February–September 15, 2026 were committed by an AI agent — a floor, not an estimate
4.2% agent · top contributor 100%1 contributor
individual

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

14
agent commits
316
other considered commits
1
agent contributors
100%
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

14assisted
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
2026-020%28
2026-037.1%28
2026-0414.5%83
2026-050%12
2026-060%55
2026-070%81
2026-080%33
2026-090%10

Peak month: 14.5%. Bars are scaled to that peak, not to 100%.

Which agents

AgentVendorCommitsShare
Claude CodeAnthropic123.6%
GitHub CopilotGitHub20.6%

03Evidence

Inspect the matches

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

Matched commit samples

  • f5edf077 on GitHubfeat: v2 migration rules in ValidatePlugin + DOM hook deprecations (#722)Claude Code
  • 417dadcf on GitHubfeat(react): add @unhead/react/helmet compat export (#719)Claude Code
  • 5b5334ed on GitHubtest(schema-org): add client-side dispose lifecycle tests (#721)Claude Code
  • 01a7aaf8 on GitHubfix(schema-org): allow null to opt out of default values (#680)GitHub Copilot
  • b0627152 on GitHubfix(types): make templateParams extensible via module augmentation (#679)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 window424
Merge commits removed−23
CI / dependency bots removed−71
Considered330

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 unjs/unhead

Scan another repository

Try