- Dataset
- 2026-09-18-v3.0
- Ruleset
- b2e8889c66f7
- Scanned
- 2026-09-16
- Window
- February–September 15, 2026
01Result
Homebrew/homebrew-cask ↗Homebrew/homebrew-cask AI coding statistics: 0.1%
Adoption is broad. Many contributors are committing agent-authored work, which is what a real organisational rollout looks like.
02Drivers
What shapes this result
Mode, timing, and detected signatures show whether the result reflects broad adoption or one concentrated workflow.
Assisted or autonomous
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
| Month | Agent share | Considered commits |
|---|---|---|
| 2026-01 | 0% | 3 |
| 2026-02 | 0.2% | 4577 |
| 2026-03 | 0% | 5399 |
| 2026-04 | 0.2% | 5303 |
| 2026-05 | 0% | 6796 |
| 2026-06 | 0.2% | 5379 |
| 2026-07 | 0.1% | 6469 |
| 2026-08 | 0% | 10580 |
| 2026-09 | 0% | 4262 |
Peak month: 0.2%. Bars are scaled to that peak, not to 100%.
Which agents
| Agent | Vendor | Commits | Share |
|---|---|---|---|
| Claude Code | Anthropic | 28 | 0.1% |
| GitHub Copilot | GitHub | 8 | 0% |
| OpenAI Codex | OpenAI | 4 | 0% |
| Cursor Agent | Anysphere | 2 | 0% |
| Devin | Cognition | 1 | 0% |
03Evidence
Inspect the matches
Public commit samples let you inspect the signatures behind the aggregate result.
Matched commit samples
46fa384bon GitHubtight-studio 3.0.5 (new cask)Claude Codeefc24302on GitHubAdd linguaxClaude Code3cb023f2on GitHubjetbrains-toolbox: add uninstall quitClaude Codee4beeecfon GitHubdocker-desktop: quit Electron appGitHub Copilot82da097don GitHubgithub-copilot-app: update zap stanzaGitHub Copilot7653d1deon GitHubApply suggestion from code reviewGitHub Copilot39189466on GitHubAdd zap stanza for screenkiteOpenAI Codex1480c97aon GitHubKeep screenkite cask Sonoma minimumOpenAI Codexeaef4d01on GitHubRestrict screenkite cask to arm64 TahoeOpenAI Codexa90083eaon GitHubUpdate pocket-bard desc and zap stanzasCursor Agent10e36d61on GitHubAdd pocket-bard caskCursor Agent5f4b0d94on GitHubwindsurf: rename to devin-desktopDevin
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 | 87,700 |
| Merge commits removed | −38,888 |
| CI / dependency bots removed | −44 |
| Considered | 48,768 |
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
- Homebrew/homebrew-cask
- Default branch
- main
- Resolved HEAD
- ea64ffb19432ec7b8f5baf1aaee70009b7c66a0b ↗
- Resolved
- 2026-09-16
- Measurement window
- February–September 15, 2026
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.
Midrank percentile; equal shares split the tied positions.
- Repository
- 0.1%
- Cohort median
- 1.7%
- Share rank
- 10 / 14
Percentile = (repositories below + half of 1 tied repository) ÷ 14.
Continue exploring
Related coding-agent evidence
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 Homebrew/homebrew-cask