18.3%

of 71 commits were committed by an AI agent — a floor, not an estimate

Too little recent activity to publish. Only 71 commits landed in this window, so the percentage is noisy. Repositories below 100 are excluded from the index for this reason.

18.3% agent · top contributor 53.8%5 contributors

team

A small group is using agents. Adoption has spread beyond one person but is not project-wide.

agent commits

human commits

agent contributors

53.8%

largest contributor

Assisted or autonomous

13assisted

0autonomous

Assisted — a developer’s identity authored the commit and the agent added itself as co-author. The agent ran git commit during a working session, with a person there. Autonomous — a bot identity is the author, no human in the loop. Across the whole index, 93.7% of agent commits are assisted.

Agent share by month

Feb26

Mar26

May26

Jun26

Jul26

Aug26

Sep26

Peak month: 40%. Bars are scaled to that peak, not to 100%.

Which agents

GitHub Copilot	GitHub	7	9.9%
Claude Code	Anthropic	6	8.5%

Verify it yourself

Sample commits that matched. Every one links to GitHub — check the trailers.

bdce0a25Update README with new rrweb cloud link and details (#1859)GitHub Copilot
30b8d9bc[chore] Move root changelog notes to rrweb package (#1853)GitHub Copilot
a57ad937[codex] Align ESLint report scope (#1831)GitHub Copilot
90108c7dtest(rrweb-snapshot): harden the #1734/#1692 css crash regression tests (sClaude Code
7b10fba6fix: ignore autoplay attribute mutations regardless of tagName case (#1921Claude Code
db24205bfix: add repository.directory so published READMEs' relative links resolveClaude Code

What was excluded

Commits in window	79
Merge commits removed	−0
CI / dependency bots removed	−8
Considered	71

Bots are excluded from the denominator entirely. Counting dependabot as “AI-written code” is the fastest way to produce a meaningless number.

How this was measured

Measured over February–August 2026, cloned directly. Detection is deterministic string matching against signatures agents write about themselves — no heuristics, no style analysis. Merge commits and CI bots are excluded from the denominator. The figure is a floor: squash merges strip trailers, so real usage is higher. Contributor counts are aggregate — no individual is named.

Run it yourself: npx qmmit-cli rrweb-io/rrweb

Scan another repository

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