9.2%

of 1,244 commits were committed by an AI agent — a floor, not an estimate

9.2% agent · top contributor 20%45 contributors

org-wide

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

115

agent commits

1,129

human commits

agent contributors

20%

largest contributor

Assisted or autonomous

111assisted

4autonomous

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: 11.7%. Bars are scaled to that peak, not to 100%.

Which agents

Devin	Cognition	93	7.5%
Claude Code	Anthropic	19	1.5%
GitHub Copilot	GitHub	4	0.3%
Other / generic agent	Various	1	0.1%
Cursor Agent	Anysphere	1	0.1%

Verify it yourself

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

49f73de2fix(wrangler): keep `allowTrailingCommas` off the config schema root `$refDevin
1b73c879[workers-utils] Report a non-array queues.consumers as a config error instDevin
6221e531[ci] Publish packages in dependency-tier order with propagation gates (#15Devin
49f73de2fix(wrangler): keep `allowTrailingCommas` off the config schema root `$refClaude Code
e1b5b4bdfeat(wrangler): add email.sending event subscription source (#14737)Claude Code
465c0fb5[miniflare] Expose R2 via an S3-compatible API locally (#14280)Claude Code
ad8d4b24[local-explorer-ui] Fix data studio cell keydown swallowing browser shortcGitHub Copilot
b8439fbb[miniflare][wrangler] Fix Windows CI flakes: local-explorer ECONNRESET retGitHub Copilot
92bb8a52wrangler types --check` fails with `Invalid value: true (#13695)GitHub Copilot
17d2fc12[wrangler] Add `turnstile widget` CLI commands (#14511)Other / generic agent
2cb658c8[vitest-pool-workers] Preserve wrapped RPC call ordering (#13961)Cursor Agent

What was excluded

Commits in window	1,486
Merge commits removed	−0
CI / dependency bots removed	−242
Considered	1,244

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 cloudflare/workers-sdk

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