- Dataset
- 2026-09-18-v3.0
- Ruleset
- b2e8889c66f7
- Scanned
- 2026-09-16
- Window
- February–September 15, 2026
01Result
OAI/OpenAPI-Specification ↗OAI/OpenAPI-Specification AI coding statistics: 15%
One person is driving this. The headline number reflects a single contributor's workflow, not a project-wide shift.
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% | 18 |
| 2026-03 | 0% | 4 |
| 2026-04 | 0% | 6 |
| 2026-05 | 0% | 13 |
| 2026-06 | 11.1% | 9 |
| 2026-07 | 5.6% | 18 |
| 2026-08 | 48.1% | 27 |
| 2026-09 | 0% | 5 |
Peak month: 48.1%. Bars are scaled to that peak, not to 100%.
Which agents
| Agent | Vendor | Commits | Share |
|---|---|---|---|
| OpenAI Codex | OpenAI | 13 | 13% |
| Claude Code | Anthropic | 1 | 1% |
| GitHub Copilot | GitHub | 1 | 1% |
03Evidence
Inspect the matches
Public commit samples let you inspect the signatures behind the aggregate result.
Matched commit samples
6bfeac48on GitHubResolve schema setup merge conflictOpenAI Codexee85e049on GitHubAdd build-infra integration workflowOpenAI Codex12510211on GitHubDocument Yarn contributor commandsOpenAI Codex0ee400f4on GitHubClarify local validation commands in CONTRIBUTING.mdClaude Coded2ef0abdon GitHubci: pass linkspector config to workflowGitHub Copilot
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 | 320 |
| Merge commits removed | −193 |
| CI / dependency bots removed | −27 |
| Considered | 100 |
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
- OAI/OpenAPI-Specification
- Default branch
- main
- Resolved HEAD
- c9f8f040e825a827bb011955bd41b7e2d899688f ↗
- 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 2 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 OAI/OpenAPI-Specification