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

reactos/reactos ↗

reactos/reactos AI coding statistics: 0.4%

of 1,281 commits in February–September 15, 2026 were committed by an AI agent — a floor, not an estimate
0.4% agent · top contributor 40%3 contributors
individual

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

5
agent commits
1,276
other considered commits
3
agent contributors
40%
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

3assisted
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

Agent-attributed commit share by month
MonthAgent shareConsidered commits
2026-020%76
2026-030%217
2026-040%141
2026-050%234
2026-060%174
2026-071.3%159
2026-081.8%165
2026-090%115

Peak month: 1.8%. Bars are scaled to that peak, not to 100%.

Which agents

AgentVendorCommitsShare
GitHub CopilotGitHub40.3%
Claude CodeAnthropic10.1%

03Evidence

Inspect the matches

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

Matched commit samples

  • 63f86fa7 on GitHub[KERNEL32][MSAFD][NTOS:OB][CSRSRV][NDK] Rename OBJECT_HANDLE_ATTRIBUTE_INFGitHub Copilot
  • 942fab5b on GitHub[NDK] Update the OBJECT_TYPE_INFORMATION and OBJECT_ALL_TYPES_INFORMATION GitHub Copilot
  • 7877f5bc on GitHub[NTOS:CC] Fix CcRosDeleteFileCache race with concurrent CcFlushCache causiGitHub Copilot
  • 39ca039e on GitHub[I8042PRT] Compensate for inverted PS/2 mouse Y-axis under Hyper-V (#9254)Claude Code

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 window1,281
Merge commits removed−0
CI / dependency bots removed−0
Considered1,281

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
reactos/reactos
Default branch
master
Resolved HEAD
d09a3600606a65536416740a4eecf8a092d61c8b ↗
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.

CohortC/C++ · 127 eligible repositories · at least 100 considered commits2026-09-18-v3.0 · February–September 15, 2026 · 51 of 178 ecosystem repositories excluded
Agent-commit share position50th percentile

Midrank percentile; equal shares split the tied positions.

Repository
0.4%
Cohort median
0.4%
Share rank
64 / 127
0th50th100th

Percentile = (repositories below + half of 2 tied repositories) ÷ 127.

Continue exploring

Claude Code commitsBrowse repositories with detected Claude Code signatures →GitHub Copilot commitsBrowse repositories with detected GitHub Copilot 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 reactos/reactos

Scan another repository

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