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18.4%
of 2,008 commits were committed by an AI agent — a floor, not an estimate
18.4% agent · top contributor 34.6%28 contributors
org-wide

Adoption is broad. Many contributors are committing agent-authored work, which is what a real organisational rollout looks like.

370
agent commits
1,638
human commits
28
agent contributors
34.6%
largest contributor

Assisted or autonomous

370assisted
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: 35.5%. Bars are scaled to that peak, not to 100%.

Which agents

Claude CodeAnthropic36218%
GitHub CopilotGitHub70.3%
Cursor AgentAnysphere20.1%

Verify it yourself

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

  • 5379dbf6fix: Derive MCP base URL scheme from the HTTP listener TLS setting (#14211Claude Code
  • c651f43ffix: update free tier ingestion from 200 GB/day to 50 GB/day in README (#1Claude Code
  • abc0fdc4feat: model pricing time-based conditonal pricing (#13903)Claude Code
  • 99b3093cci: bump node version to 24 (#12811)GitHub Copilot
  • 298427defix: grouped unauthorized error message (#12651)GitHub Copilot
  • 9f9576f6fix: ux revamp of buttons and tabs (#11652)GitHub Copilot
  • a765fa37fix(web): preserve newlines in log search field values list (#14022)Cursor Agent
  • f6ab7722fix: skip file column widen when already VARCHAR(1024) (#13190)Cursor Agent

What was excluded

Commits in window2,120
Merge commits removed−0
CI / dependency bots removed−112
Considered2,008

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 openobserve/openobserve

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