- Dataset
- 2026-09-18-v3.0
- Ruleset
- b2e8889c66f7
- Scanned
- 2026-09-16
- Window
- February–September 15, 2026
01Result
chroma-core/chroma ↗chroma-core/chroma AI coding statistics: 8.4%
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 | 0.7% | 145 |
| 2026-03 | 5.8% | 137 |
| 2026-04 | 6.9% | 102 |
| 2026-05 | 11.1% | 90 |
| 2026-06 | 8.1% | 74 |
| 2026-07 | 15.3% | 85 |
| 2026-08 | 25% | 28 |
| 2026-09 | 25% | 20 |
Peak month: 25%. Bars are scaled to that peak, not to 100%.
Which agents
| Agent | Vendor | Commits | Share |
|---|---|---|---|
| Claude Code | Anthropic | 56 | 8.2% |
| Cursor Agent | Anysphere | 1 | 0.1% |
03Evidence
Inspect the matches
Public commit samples let you inspect the signatures behind the aggregate result.
Matched commit samples
9e623fe5on GitHub[PERF](agent): Cache the Anthropic request prefix (#7744)Claude Code83abab0aon GitHub[CLN](agent): Split anthropic.rs into a module (#7745)Claude Code5d8645d7on GitHub[BUG](worker): Revert the async fn window widening from #7621 (#7684)Claude Codeccf5968don GitHub[CHORE](js-client): Bump chromadb to 3.5.0 (#7367)Cursor 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 | 681 |
| Merge commits removed | −0 |
| CI / dependency bots removed | −0 |
| Considered | 681 |
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
- chroma-core/chroma
- Default branch
- main
- Resolved HEAD
- 7edf9b451d727d1115e293e7f1f2100ba8414afc ↗
- 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
- 8.4%
- Cohort median
- 2%
- Share rank
- 28 / 117
Percentile = (repositories below + half of 1 tied repository) ÷ 117.
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 chroma-core/chroma