of 2,576 commits were committed by an AI agent — a floor, not an estimate

6% agent · top contributor 29%42 contributors

org-wide

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

155

agent commits

2,421

human commits

agent contributors

29%

largest contributor

Assisted or autonomous

155assisted

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: 15.4%. Bars are scaled to that peak, not to 100%.

Which agents

Claude Code	Anthropic	149	5.8%
Cursor Agent	Anysphere	3	0.1%
GitHub Copilot	GitHub	2	0.1%
OpenAI Codex	OpenAI	1	0%

Verify it yourself

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

1a000a52fix(control-plane): serve the UI when bound to a loopback address (#4379)Claude Code
ee615d61feat(python-client): add task-local retain suspension (#4285)Claude Code
16d4025fblog: Onboarding an Engineer vs. Onboarding an Agent (#4100)Claude Code
41852405perf+fix(graph-maintenance): catch the #2529 sweep deadlock in continuous Cursor Agent
84e67efbfix(cursor-cli): parse Cursor 3.x role-nested agent transcripts (#2465)Cursor Agent
ef2e8ab7fix(openclaw): apply configured defaults to dynamic banks (#2441)Cursor Agent
f3f2c6b0Fix timeline group sort: localeCompare → numeric Date comparison (#820)GitHub Copilot
8ce06e3eAdd wall-clock timeout to reflect operations (#643)GitHub Copilot
532aa869fix(worker): detect stuck tasks by stage progress (#3720)OpenAI Codex

What was excluded

Commits in window	2,643
Merge commits removed	−2
CI / dependency bots removed	−65
Considered	2,576

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 vectorize-io/hindsight

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