- Dataset
- 2026-09-18-v3.0
- Ruleset
- b2e8889c66f7
- Scanned
- 2026-09-16
- Window
- February–September 15, 2026
01Result
garrytan/gstack ↗garrytan/gstack AI coding statistics: 90.6%
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 |
|---|---|---|
| 2026-03 | 95.9% | 171 |
| 2026-04 | 90.8% | 76 |
| 2026-05 | 98.2% | 55 |
| 2026-06 | 100% | 18 |
| 2026-07 | 44.4% | 27 |
| 2026-08 | 100% | 24 |
| 2026-09 | 50% | 12 |
Peak month: 100%. Bars are scaled to that peak, not to 100%.
Which agents
| Agent | Vendor | Commits | Share |
|---|---|---|---|
| Claude Code | Anthropic | 342 | 89.3% |
| Cursor Agent | Anysphere | 7 | 1.8% |
03Evidence
Inspect the matches
Public commit samples let you inspect the signatures behind the aggregate result.
Matched commit samples
c8f0c4e3on GitHubv1.84.0.0 feat: impeccable interop: detector pre-pass in four design skillClaude Codecaba78feon GitHubv1.83.0.0 feat: Memorable recall bridge, opt-in and receipted (supersedes Claude Code05303928on GitHubv1.81.0.0 feat: Aside is the browser gstack drives first; every browsing sClaude Code702a1a9bon GitHubv1.78.0.0 fix: the two-red-lanes wave — AUQ collapse rooted, OSV green froCursor Agent28d59ad5on GitHubv1.68.0.0 fix: next tracker wave — 16 verified fixes in, 90 stale PRs and Cursor Agentdb149a61on GitHubfix(gstack-config): accept @local endpoint ids for brain_trust_policyCursor 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 | 396 |
| Merge commits removed | −13 |
| CI / dependency bots removed | −0 |
| Considered | 383 |
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
- garrytan/gstack
- Default branch
- main
- Resolved HEAD
- a6b3a57512ca6d5c6aa5b68f74f736195021f96e ↗
- 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
- 90.6%
- Cohort median
- 5.4%
- Share rank
- 1 / 376
Percentile = (repositories below + half of 1 tied repository) ÷ 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 garrytan/gstack