15%

of 127 commits were committed by an AI agent — a floor, not an estimate

15% agent · top contributor 47.4%4 contributors

team

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

agent commits

108

human commits

agent contributors

47.4%

largest contributor

Assisted or autonomous

18assisted

1autonomous

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

Claude Code	Anthropic	14	11%
Cursor Agent	Anysphere	3	2.4%
GitHub Copilot	GitHub	3	2.4%

Verify it yourself

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

f1a27504hardhat-exposed: resolve npm imports in generated contracts (#6706)Claude Code
0ebe89c8PaymasterSigner: bind digest to effective EIP-7702 delegate (#6673)Claude Code
c5fe1389Merge release-v5.7 branch (#6659)Claude Code
08efabd8Hardhat3: load leftover scripts under "type": "module" (#6738)Cursor Agent
fddac901Hardhat3: fix `test:inheritance` no-op (#6689)Cursor Agent
f646874fHardhat3: Checkout submodules when packing a release (#6688)Cursor Agent
cebdf7bfMigrate to Hardhat3 (#6542)GitHub Copilot
c5fe1389Merge release-v5.7 branch (#6659)GitHub Copilot
66611cacFix docs `AccessManager` about reserved `setAuthority` selector (L-12) (#6GitHub Copilot

What was excluded

Commits in window	155
Merge commits removed	−0
CI / dependency bots removed	−28
Considered	127

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 OpenZeppelin/openzeppelin-contracts

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