Dataset: 2026-09-18-v3.0
Ruleset: b2e8889c66f7
Scanned: 2026-09-16
Window: February–September 15, 2026

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01Result

vercel/next.js ↗

vercel/next.js AI coding statistics: 7.1%

of 2,851 commits in February–September 15, 2026 were committed by an AI agent — a floor, not an estimate

7.1% agent · top contributor 44.8%29 contributors

org-wide

Adoption is broad. Many contributors are committing agent-authored work, which is what a real organisational rollout looks like.

203

agent commits

2,648

other considered commits

29

agent contributors

44.8%

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

201assisted

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. Across the whole index, 96% of agent commits are assisted.

Agent share by month

Peak month: 13.2%. Bars are scaled to that peak, not to 100%.

Which agents

Agent	Vendor	Commits	Share
Claude Code	Anthropic	157	5.5%
Cursor Agent	Anysphere	43	1.5%
GitHub Copilot	GitHub	4	0.1%

03Evidence

Inspect the matches

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

Matched commit samples

e29a96a9 on GitHubdocs: add an intro paragraph to the glossary (#98654)Claude Code
c5741d52 on GitHubfix(devtools): handle pointercancel when dragging the indicator (#98506)Claude Code
2d417dae on GitHub[ci] Show full logs under GitHub Actions debug logging (#98501)Claude Code
1780fa03 on GitHubfix: reuse a single drain listener when piping Node streams through gzip (Cursor Agent
8aa475b4 on GitHubRedesign the unrendered-segment instant validation overlay (#93879)Cursor Agent
1a1d1c97 on GitHubci: run Linux Playwright jobs in prebuilt Microsoft container (#93794)Cursor Agent
d4b23403 on GitHubdocs: clarify /_not-found failures and <html> attribute reads under Cache GitHub Copilot
9e344c92 on GitHubskill(next-cache-components-adoption): tune skill to mention app router reGitHub Copilot
8adb4ea8 on GitHub[test] Fix broken terminal output (#93357)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 window	3,113
Merge commits removed	−0
CI / dependency bots removed	−262
Considered	2,851

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

05Provenance

Pinned to a source state

This observation names the repository state, release, and detector that produced it. Use these identifiers when reproducing or citing the result.

Dataset release: 2026-09-18-v3.0
Scan date: 2026-09-16
Ruleset: sha256:b2e8889c66f72c18a61839f0bf1a9f77b5481ba2def044dba33c797b2f2bdcae
Canonical repository: vercel/next.js
Default branch: canary
Resolved HEAD: f1a7e1db621761c2b82b0fad34762ab4f2121737 ↗
Resolved: 2026-09-16
Measurement window: February–September 15, 2026

Download observation JSONDeterministic export · same values as this page

06Peer context

Position among comparable repositories

The cohort uses the same release and measurement window, then narrows to the repository’s ecosystem and removes low-activity observations.

CohortJS/TS · 376 eligible repositories · at least 100 considered commits2026-09-18-v3.0 · February–September 15, 2026 · 194 of 570 ecosystem repositories excluded

Agent-commit share position56th percentile

Midrank percentile; equal shares split the tied positions.

Repository: 7.1%
Cohort median: 5.4%
Share rank: 166 / 376

0th50th100th

Percentile = (repositories below + half of 3 tied repositories) ÷ 376.

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 →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 vercel/next.js

Scan another repository

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