- Dataset
- 2026-09-18-v3.0
- Ruleset
- b2e8889c66f7
- Scanned
- 2026-09-16
- Window
- February–September 15, 2026
01Result
firstcontributions/first-contributions ↗firstcontributions/first-contributions AI coding statistics: 0.6%
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 | 0.2% | 1460 |
| 2026-03 | 0.1% | 1667 |
| 2026-04 | 1.1% | 1353 |
| 2026-05 | 0.4% | 1450 |
| 2026-06 | 0.5% | 1881 |
| 2026-07 | 0.3% | 1739 |
| 2026-08 | 0.5% | 1704 |
| 2026-09 | 4.1% | 640 |
Peak month: 4.1%. Bars are scaled to that peak, not to 100%.
Which agents
| Agent | Vendor | Commits | Share |
|---|---|---|---|
| Claude Code | Anthropic | 67 | 0.6% |
| Cursor Agent | Anysphere | 5 | 0% |
| GitHub Copilot | GitHub | 2 | 0% |
| Gemini CLI | 1 | 0% |
03Evidence
Inspect the matches
Public commit samples let you inspect the signatures behind the aggregate result.
Matched commit samples
31c6b43eon GitHubAdd Bruna Codima to Contributors list (#124903)Claude Codea5228da5on GitHubAdd kiyurao to Contributors.md (#124878)Claude Code7102f065on GitHubAdd NegroMontes to Contributors.md (#124877)Claude Code298692a6on GitHubAdd Raphael Karani to contributors list (#122696)Cursor Agent3419c2a5on GitHubAdd Tom Goldberg to Contributors list (#122148)Cursor Agent4e204785on GitHubAdd yiziff to Contributors list (#121257)Cursor Agentb8ddc013on GitHubAdd Shaan Saurav to Contributors list (#117158)GitHub Copilotd69e1b2don GitHubAdd Karan Rohra to Contributors list (#116134)GitHub Copilot54e15ddcon GitHubUpdate Contributors.md (#115902)Gemini CLI
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 | 15,036 |
| Merge commits removed | −3,141 |
| CI / dependency bots removed | −1 |
| Considered | 11,894 |
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
- firstcontributions/first-contributions
- Default branch
- main
- Resolved HEAD
- 251aaa7fb177d94a31ca098c6d99f6ade20d8281 ↗
- 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
- 0.6%
- Cohort median
- 0.3%
- Share rank
- 10 / 23
Percentile = (repositories below + half of 1 tied repository) ÷ 23.
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 firstcontributions/first-contributions