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8.3%
of 385 commits were committed by an AI agent — a floor, not an estimate
8.3% agent · top contributor 100%1 contributor
individual

One person is driving this. The headline number reflects a single contributor's workflow, not a project-wide shift.

32
agent commits
353
human commits
1
agent contributors
100%
largest contributor

Assisted or autonomous

0assisted
32autonomous

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

GitHub CopilotGitHub328.3%

Verify it yourself

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

  • 90fb39a4Fix finish_reason to return tool_calls when tool calls are presentGitHub Copilot
  • e03f0b7eInitial planGitHub Copilot
  • c406ed38fix: convert RGBA images to RGB before saving as JPEG thumbnailGitHub Copilot

What was excluded

Commits in window424
Merge commits removed−39
CI / dependency bots removed−0
Considered385

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 xtekky/gpt4free

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