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danielmiessler/Fabric ↗
6%
of 248 commits were committed by an AI agent — a floor, not an estimate
6% agent · top contributor 60%6 contributors
team

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

15
agent commits
233
human commits
6
agent contributors
60%
largest contributor

Assisted or autonomous

15assisted
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: 14.3%. Bars are scaled to that peak, not to 100%.

Which agents

Claude CodeAnthropic145.6%
GitHub CopilotGitHub10.4%

Verify it yourself

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

  • e8fd77c4style(web): format the files added in this branchClaude Code
  • 97308081fix: include Grok in localized --search help textClaude Code
  • 1e650266fix: block path traversal in pattern name lookup (closes #2094)Claude Code
  • b046ddb5Update Dockerfile for best practices and CVE fixesGitHub Copilot

What was excluded

Commits in window446
Merge commits removed−111
CI / dependency bots removed−87
Considered248

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 danielmiessler/Fabric

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