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

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01Result

NixOS/nixpkgs ↗

NixOS/nixpkgs AI coding statistics: 0.1%

of 76,906 commits in February–September 15, 2026 were committed by an AI agent — a floor, not an estimate

0.1% agent · top contributor 11.2%44 contributors

org-wide

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

agent commits

76,817

other considered commits

agent contributors

11.2%

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

89assisted

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
Month	Agent share	Considered commits
2026-01	0%	11
2026-02	0.1%	10884
2026-03	0.2%	9571
2026-04	0.2%	9747
2026-05	0.2%	10779
2026-06	0.1%	10275
2026-07	0%	10807
2026-08	0.1%	10781
2026-09	0.1%	4051

Peak month: 0.2%. Bars are scaled to that peak, not to 100%.

Which agents

Agent	Vendor	Commits	Share
Claude Code	Anthropic	81	0.1%
GitHub Copilot	GitHub	3	0%
Cursor Agent	Anysphere	2	0%
Gemini CLI	Google	1	0%
Devin	Cognition	1	0%
OpenAI Codex	OpenAI	1	0%

03Evidence

Inspect the matches

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

Matched commit samples

6b0e589b on GitHubpython3Packages.nvidia-cutlass-dsl: 4.6.0.dev0 -> 4.7.0Claude Code
89ea8868 on GitHubdevenv: 2.2.2 -> 2.3.0Claude Code
83cb3b32 on GitHubor-tools: fix Python 3.14 support, drop broken markerClaude Code
f322c396 on GitHubgithub-copilot-cli: 1.0.26 -> 1.0.61GitHub Copilot
8c8786ce on GitHubgithub-copilot-cli: use universal node packageGitHub Copilot
374db7f8 on GitHubpython3Packages.pyads: skip pre-release tags in update scriptGitHub Copilot
57552bb3 on GitHubdirevent: 5.4 -> 5.5Cursor Agent
71e587c3 on GitHubalbyhub: 1.22.2 -> 1.23.0Cursor Agent
61c0c7ac on GitHubnixos/tests/matrix/mautrix-meta: fix tests for newer mautrix versionsGemini CLI
dd2ea746 on GitHubgraphite-cli: fix darwin buildDevin
6bb4c2a4 on GitHubmise: add git to nativeCheckInputsOpenAI 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 window	134,550
Merge commits removed	−57,583
CI / dependency bots removed	−61
Considered	76,906

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: NixOS/nixpkgs
Default branch: master
Resolved HEAD: 3e2b669b1329aac88381f3b13bbc39c1f6a129ba ↗
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.

CohortNix · 1 eligible repositories · at least 100 considered commits2026-09-18-v3.0 · February–September 15, 2026 · 0 of 1 ecosystem repositories excluded

Comparison withheld for a small cohort

Only 1 eligible repositories remain; qmmit requires at least 10 before showing a percentile. The cohort definition and sample size remain visible so the omission is auditable.

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 →Devin commitsBrowse repositories with detected Devin signatures →OpenAI Codex commitsBrowse repositories with detected OpenAI Codex signatures →Gemini CLI commitsBrowse repositories with detected Gemini CLI 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 NixOS/nixpkgs

Scan another repository

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