25%

of 937 commits were committed by an AI agent — a floor, not an estimate

25% agent · top contributor 28.2%27 contributors

org-wide

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

234

agent commits

703

human commits

agent contributors

28.2%

largest contributor

Assisted or autonomous

199assisted

35autonomous

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

Peak month: 39.1%. Bars are scaled to that peak, not to 100%.

Which agents

Claude Code	Anthropic	101	10.8%
Cursor Agent	Anysphere	70	7.5%
GitHub Copilot	GitHub	66	7%
OpenAI Codex	OpenAI	1	0.1%

Verify it yourself

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

dbe61d67feat(releases): instrument release description usage (#13775)Claude Code
b9bee418feat(sanity): add _unstable-embedded export for embedded form rendering (#Claude Code
b37fa239fix(core): lock in intended publish date when scheduling a release (#13824Claude Code
276d0558feat(e2e): add chromatic visual regression snapshots to the e2e suite (#14Cursor Agent
ac542a48feat(storybook): add visual regression testing with chromatic (#14002)Cursor Agent
684e3977ci(typedoc): use the shared pnpm setup action (#13941)Cursor Agent
53540567feat(studio): provide SDKStudioContext to enable zero-config SDK usage (#1GitHub Copilot
d7d621c1chore: migrate ui5 box in core/canvas to core/documentGroupInventory (#139GitHub Copilot
684e3977ci(typedoc): use the shared pnpm setup action (#13941)GitHub Copilot
11e248dcfix(portable-text): prevent duplicate nested annotation dialogs (#13551)OpenAI Codex

What was excluded

Commits in window	1,585
Merge commits removed	−0
CI / dependency bots removed	−648
Considered	937

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 sanity-io/sanity

Scan another repository

Try