- Dataset
- 2026-09-18-v3.0
- Ruleset
- b2e8889c66f7
- Scanned
- 2026-09-16
- Window
- February–September 15, 2026
01Result
steipete/CodexBar ↗steipete/CodexBar AI coding statistics: 6.7%
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 | 1.8% | 221 |
| 2026-03 | 7.6% | 105 |
| 2026-04 | 3.4% | 179 |
| 2026-05 | 2.8% | 506 |
| 2026-06 | 4.4% | 547 |
| 2026-07 | 8.1% | 1090 |
| 2026-08 | 12.5% | 861 |
| 2026-09 | 0% | 267 |
Peak month: 12.5%. Bars are scaled to that peak, not to 100%.
Which agents
| Agent | Vendor | Commits | Share |
|---|---|---|---|
| Claude Code | Anthropic | 151 | 4% |
| Cursor Agent | Anysphere | 99 | 2.6% |
| GitHub Copilot | GitHub | 2 | 0.1% |
| Devin | Cognition | 1 | 0% |
03Evidence
Inspect the matches
Public commit samples let you inspect the signatures behind the aggregate result.
Matched commit samples
70a37b98on GitHubReset the Codex failure gate when a successful fetch is withheldClaude Code97fc3b45on GitHubClear a stale Codex connectivity failure when publication is withheldClaude Coded8d03a12on GitHubPrice OpenCodex usage once per entry and stop per-entry catalog/overlay reClaude Codeb4448cdcon GitHubDocument why deferred file starvation via growth cannot occurCursor Agent35ff9a18on GitHubSort deferred files by remaining bytes and record scan attemptsCursor Agentcb1a5d6aon GitHubAddress review feedback: fix dedup state leak and test determinismCursor Agent573652aeon GitHubi18n: improve Simplified Chinese localization (#1059)GitHub Copilotec2005bdon GitHubAdd Copilot multi-account support (#637)GitHub Copilot72aaaf3don GitHubfix: preserve Devin one-percent usage (#1938)Devin
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 | 4,489 |
| Merge commits removed | −713 |
| CI / dependency bots removed | −0 |
| Considered | 3,776 |
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
- steipete/CodexBar
- Default branch
- main
- Resolved HEAD
- 18dd6ffb2005f21f0b07e0a1366bf85f0bc5a7fe ↗
- 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
- 6.7%
- Cohort median
- 2.3%
- Share rank
- 5 / 14
Percentile = (repositories below + half of 1 tied repository) ÷ 14.
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 steipete/CodexBar