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10.5%
of 228 commits were committed by an AI agent — a floor, not an estimate
10.5% agent · top contributor 66.7%5 contributors
team

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

24
agent commits
204
human commits
5
agent contributors
66.7%
largest contributor

Assisted or autonomous

24assisted
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

Peak month: 22.7%. Bars are scaled to that peak, not to 100%.

Which agents

Claude CodeAnthropic2410.5%

Verify it yourself

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

  • 3273f756fix(security): block PDF image-write fields from untrusted config bodiesClaude Code
  • a86fe353fix(pdf): carry cookies across manual redirect hopsClaude Code
  • d57a31c8test(docker): cover the per-URL crawler_configs PDF SSRF guardClaude Code

What was excluded

Commits in window318
Merge commits removed−90
CI / dependency bots removed−0
Considered228

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 unclecode/crawl4ai

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