0.4%

of 5,421 commits were committed by an AI agent — a floor, not an estimate

0.4% agent · top contributor 8.7%20 contributors

org-wide

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

agent commits

5,398

human commits

agent contributors

8.7%

largest contributor

Assisted or autonomous

23assisted

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: 1.9%. Bars are scaled to that peak, not to 100%.

Which agents

Claude Code	Anthropic	15	0.3%
GitHub Copilot	GitHub	4	0.1%
Cursor Agent	Anysphere	3	0.1%
Devin	Cognition	1	0%

Verify it yourself

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

3ef72fe8fix(provider): route non-native Cloudflare AI Gateway providers via the REClaude Code
f8b4dd70fix(provider): send Anthropic's dashed native slug through the AI Gateway Claude Code
f0afb675fix(server): log upstream 5xx bodies from proxied workspace requests (#401Claude Code
7f571d36refactor(core): move database schema ownership (#29068)GitHub Copilot
202ec120docs: fix grammar in config.mdx (#29683)GitHub Copilot
9a429272revert: undo turbo typecheck dependency change from #14828 (#15902)GitHub Copilot
7f7eb2e7fix(provider): remove LiteLLM workarounds ported upstream, requires LiteLLCursor Agent
95ad6758feat: add specific system prompt for Trinity model (#12144)Cursor Agent
015cd404feat: add Trinity model system prompt support (#12025)Cursor Agent
c5a4a828fix: dont show gpt-5.5-pro when using codex oauth (#33400)Devin

What was excluded

Commits in window	7,033
Merge commits removed	−25
CI / dependency bots removed	−1,587
Considered	5,421

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 anomalyco/opencode

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