- Dataset
- 2026-09-18-v3.0
- Ruleset
- b2e8889c66f7
- Scanned
- 2026-09-16
- Window
- February–September 15, 2026
01Result
nestjs/nest ↗nestjs/nest AI coding statistics: 8.1%
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 |
|---|---|---|
| 2026-02 | 0% | 115 |
| 2026-03 | 11.5% | 26 |
| 2026-04 | 2.9% | 34 |
| 2026-05 | 1.6% | 63 |
| 2026-06 | 8.3% | 36 |
| 2026-07 | 2.9% | 34 |
| 2026-08 | 7% | 57 |
| 2026-09 | 50% | 40 |
Peak month: 50%. Bars are scaled to that peak, not to 100%.
Which agents
| Agent | Vendor | Commits | Share |
|---|---|---|---|
| Claude Code | Anthropic | 23 | 5.7% |
| GitHub Copilot | GitHub | 7 | 1.7% |
| Cursor Agent | Anysphere | 3 | 0.7% |
03Evidence
Inspect the matches
Public commit samples let you inspect the signatures behind the aggregate result.
Matched commit samples
8981a9daon GitHubfix(microservices): always run the kafka processing end hook (#17766)Claude Codef76e96f9on GitHubchore(deps): sync package-lock.json with package.json (#17764)Claude Code2e353fa2on GitHubchore: let renovate resolve the lockfile with legacy peer deps (#17765)Claude Code917aec5bon GitHubfix(microservices): call RMQ listen callback once (#17675)GitHub Copilota3a31b96on GitHubrefactor: use Object.hasOwnGitHub Copilot4fbd6e62on GitHubPotential fix for pull request findingGitHub Copilotb76c889eon GitHubtest(core): add forroot/forfeature resolution integration testCursor Agenteccf5b25on GitHubfix(core): stop import lookup after first direct export matchCursor Agentfb4d3e70on GitHubfix(common): include field paths in standard schema validation errorsCursor Agent
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 | 1,923 |
| Merge commits removed | −811 |
| CI / dependency bots removed | −707 |
| Considered | 405 |
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
- nestjs/nest
- Default branch
- master
- Resolved HEAD
- 8e03a7dee8e5438d84b243557eda89bb36492fe7 ↗
- 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
- 8.1%
- Cohort median
- 5.4%
- Share rank
- 150 / 376
Percentile = (repositories below + half of 3 tied repositories) ÷ 376.
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 nestjs/nest