Pulse
2026-09-18-v3.0
Dataset
2026-09-18-v3.0
Ruleset
b2e8889c66f7
Scanned
2026-09-16
Window
February–September 15, 2026
Local to this browser

01Result

tailwindlabs/tailwindcss ↗

tailwindlabs/tailwindcss AI coding statistics: 2.8%

of 217 commits in February–September 15, 2026 were committed by an AI agent — a floor, not an estimate
2.8% agent · top contributor 50%4 contributors
team

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

6
agent commits
211
other considered commits
4
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

6assisted
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. Across the whole index, 96% of agent commits are assisted.

Agent share by month

Agent-attributed commit share by month
MonthAgent shareConsidered commits
2026-027.1%28
2026-030%32
2026-046.9%29
2026-052.6%38
2026-062.9%34
2026-070%29
2026-080%26
2026-090%1

Peak month: 7.1%. Bars are scaled to that peak, not to 100%.

Which agents

AgentVendorCommitsShare
Claude CodeAnthropic52.3%
OpenAI CodexOpenAI10.5%

03Evidence

Inspect the matches

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

Matched commit samples

  • b4db3b99 on GitHubAdd scrollbar-width and scrollbar-color utilities (#19981)Claude Code
  • 6cf1af26 on GitHubFix TS2742 error when inferring exported Config type (#19707)Claude Code
  • f036f801 on GitHubAllow multiple @utility definitions with same name but different value typClaude Code
  • 97a5b3ab on GitHubdocs: fix double word 'to to' in test comment (#20216)OpenAI Codex

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 window237
Merge commits removed−0
CI / dependency bots removed−20
Considered217

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
tailwindlabs/tailwindcss
Default branch
main
Resolved HEAD
41d9cae8e53378d16087fcf359eb785c2fd42ce4 ↗
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 position38th percentile

Midrank percentile; equal shares split the tied positions.

Repository
2.8%
Cohort median
5.4%
Share rank
232 / 376
0th50th100th

Percentile = (repositories below + half of 2 tied repositories) ÷ 376.

Continue exploring

Claude Code commitsBrowse repositories with detected Claude Code signatures →OpenAI Codex commitsBrowse repositories with detected OpenAI Codex 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 tailwindlabs/tailwindcss

Scan another repository

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