31.9%

of 1,361 commits were committed by an AI agent — a floor, not an estimate

31.9% agent · top contributor 40.1%50 contributors

org-wide

Adoption is broad. Many contributors are committing agent-authored work, which is what a real organisational rollout looks like.

434

agent commits

927

human commits

agent contributors

40.1%

largest contributor

Assisted or autonomous

434assisted

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

Apr26

May26

Jun26

Jul26

Aug26

Sep26

Peak month: 78.9%. Bars are scaled to that peak, not to 100%.

Which agents

Claude Code	Anthropic	433	31.8%
Cursor Agent	Anysphere	1	0.1%

Verify it yourself

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

bf2f7c7cchore: ignore the style-edition reformat in git blameClaude Code
75b30a44fix(hooks): don't abort init --status on an unreadable Cursor hookClaude Code
d00c514erefactor: adopt let-chainsClaude Code
b8172e5bfix(kubectl): compact get pods and services aliasesCursor Agent

What was excluded

Commits in window	1,944
Merge commits removed	−506
CI / dependency bots removed	−77
Considered	1,361

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 rtk-ai/rtk

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