6.4%

of 78 commits were committed by an AI agent — a floor, not an estimate

Too little recent activity to publish. Only 78 commits landed in this window, so the percentage is noisy. Repositories below 100 are excluded from the index for this reason.

6.4% agent · top contributor 40%4 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

40%

largest contributor

Assisted or autonomous

5assisted

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: 33.3%. Bars are scaled to that peak, not to 100%.

Which agents

Cursor Agent	Anysphere	2	2.6%
GitHub Copilot	GitHub	2	2.6%
Claude Code	Anthropic	1	1.3%

Verify it yourself

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

8d5724bfClarify that effects run after the triggering write completes. (#3365)Cursor Agent
6f611350fix(vanilla): subscriber not notified when derived read calls store.set (#Cursor Agent
5f5c844cfix(unwrap): prevent infinite microtask loop on rejected source recompute GitHub Copilot
258b1df9docs(examples): improve todo example wording (#3272)GitHub Copilot
4a309e8bbench: expand benchmark suite with 8 comprehensive scenarios (#3277)Claude Code

What was excluded

Commits in window	78
Merge commits removed	−0
CI / dependency bots removed	−0
Considered	78

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 pmndrs/jotai

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