- Dataset
- 2026-09-18-v3.0
- Ruleset
- b2e8889c66f7
- Scanned
- 2026-09-16
- Window
- February–September 15, 2026
01Result
tirth8205/code-review-graph ↗tirth8205/code-review-graph AI coding statistics: 41%
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 |
|---|---|---|
| 2026-02 | 100% | 27 |
| 2026-03 | 80.1% | 136 |
| 2026-04 | 34.1% | 170 |
| 2026-05 | 36.9% | 84 |
| 2026-06 | 52.9% | 34 |
| 2026-07 | 12.6% | 214 |
| 2026-08 | 52.1% | 48 |
| 2026-09 | 36.8% | 68 |
Peak month: 100%. Bars are scaled to that peak, not to 100%.
Which agents
| Agent | Vendor | Commits | Share |
|---|---|---|---|
| Claude Code | Anthropic | 315 | 40.3% |
| GitHub Copilot | GitHub | 3 | 0.4% |
| Cursor Agent | Anysphere | 2 | 0.3% |
03Evidence
Inspect the matches
Public commit samples let you inspect the signatures behind the aggregate result.
Matched commit samples
51fc0d60on GitHubtest(e2e): drive the MCP server through a real stdio clientClaude Code5dd8325eon GitHubci: cache pip downloads between runsClaude Code82ef9d0eon GitHubfix(incremental): match ignore rules on repo-relative update inputsClaude Code6e454683on GitHubfix: ignore missing PyYAML stubsGitHub Copilot5af39e71on GitHubfeat: add GitHub Copilot platform supportGitHub Copilot7a3c9158on GitHubfix(main): restore _apply_tool_filter on fastmcp>=3 and refresh testsGitHub Copilot33b039e7on GitHubfix(install): inject AGENTS.md instructions for Codex (#668)Cursor Agent533e581con GitHubperf: remove recursive sub-community splitting, cap Leiden iterations, batCursor 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 | 1,080 |
| Merge commits removed | −293 |
| CI / dependency bots removed | −6 |
| Considered | 781 |
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
- tirth8205/code-review-graph
- Default branch
- staging
- Resolved HEAD
- 81a1fac16a61221418f814fb40893d07403669a9 ↗
- 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
- 41%
- Cohort median
- 6.3%
- Share rank
- 29 / 247
Percentile = (repositories below + half of 1 tied repository) ÷ 247.
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 tirth8205/code-review-graph