- Dataset
- 2026-09-18-v3.0
- Ruleset
- b2e8889c66f7
- Scanned
- 2026-09-16
- Window
- February–September 15, 2026
01Result
microsoft/vcpkg ↗microsoft/vcpkg AI coding statistics: 7.5%
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 |
|---|---|---|
| 2026-02 | 0.6% | 344 |
| 2026-03 | 0.5% | 394 |
| 2026-04 | 1% | 405 |
| 2026-05 | 2.5% | 438 |
| 2026-06 | 2.9% | 379 |
| 2026-07 | 12.8% | 328 |
| 2026-08 | 30% | 390 |
| 2026-09 | 16.5% | 133 |
Peak month: 30%. Bars are scaled to that peak, not to 100%.
Which agents
| Agent | Vendor | Commits | Share |
|---|---|---|---|
| GitHub Copilot | GitHub | 195 | 6.9% |
| Claude Code | Anthropic | 17 | 0.6% |
03Evidence
Inspect the matches
Public commit samples let you inspect the signatures behind the aggregate result.
Matched commit samples
9e44ec0eon GitHub[liblzma] Update to 5.8.4 (#53867)GitHub Copilot7a5a88d6on GitHub[dpp] Updated to 10.1.6 (#53719)GitHub Copilot5f2bf1aeon GitHub[highs] add extras feature (#53346)GitHub Copilot9eef1090on GitHub[kuku] Update to 4.0.0 (#53855)Claude Code2e24b0eeon GitHub[dlib] fix public compiler flags leaking to consumers (#53375)Claude Codea29317a3on GitHub[libtorch] Update to 2.13 (#52815)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 window | 2,818 |
| Merge commits removed | −2 |
| CI / dependency bots removed | −5 |
| Considered | 2,811 |
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
- microsoft/vcpkg
- Default branch
- master
- Resolved HEAD
- 1577f17ee57f42a0ef6d75bbb82cb37d0b76d7e8 ↗
- 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.
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
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 microsoft/vcpkg