33.3%

of 910 commits were committed by an AI agent — a floor, not an estimate

33.3% agent · top contributor 69%44 contributors

team

A small group is using agents. Adoption has spread beyond one person but is not project-wide.

303

agent commits

607

human commits

agent contributors

69%

largest contributor

Assisted or autonomous

299assisted

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

Sep26

Peak month: 38.9%. Bars are scaled to that peak, not to 100%.

Which agents

Claude Code	Anthropic	251	27.6%
Cursor Agent	Anysphere	52	5.7%
GitHub Copilot	GitHub	19	2.1%
Gemini CLI	Google	6	0.7%

Verify it yourself

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

f8ad7c0e[AI] Warn API users about deferred sync messages and fix stale docs row (#Claude Code
74402bbf[AI] Fix missing vite-plugin-peggy workspace in sync-server.Dockerfile (#8Claude Code
d5d0b663Bump @vitest/mocker from 4.1.10 to 5.0.0 in the npm_and_yarn group across Claude Code
d45e07a2[AI] Count filtered-out on-budget transfers in Age of Money (#8503)Cursor Agent
3a894b1b[AI] Reduce dependencies (lodash, ua-parser-js, memoize-one, promise-retryCursor Agent
bba89d1f[AI] Migrate CI workflows to Depot-managed runners (#8205)Cursor Agent
674c6f1bFormula feedback improvements (#7989)GitHub Copilot
3f7439f1[AI] Scope Electron update to v41 (#8044)GitHub Copilot
366045a6[AI] chore: update alpine base image to 3.23.4 (#7939)GitHub Copilot
674c6f1bFormula feedback improvements (#7989)Gemini CLI
56dc32ca[AI] Fix incorrect schedule value when saving full amount (#8085)Gemini CLI
6b802b46[AI] Fix bug when linking accounts (#8006)Gemini CLI

What was excluded

Commits in window	969
Merge commits removed	−0
CI / dependency bots removed	−59
Considered	910

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 actualbudget/actual

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