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deepset-ai/haystack ↗
12.4%
of 1,309 commits were committed by an AI agent — a floor, not an estimate
12.4% agent · top contributor 44.4%52 contributors
org-wide

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

162
agent commits
1,147
human commits
52
agent contributors
44.4%
largest contributor

Assisted or autonomous

162assisted
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: 23.5%. Bars are scaled to that peak, not to 100%.

Which agents

Claude CodeAnthropic15611.9%
GitHub CopilotGitHub70.5%
Cursor AgentAnysphere40.3%

Verify it yourself

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

  • 7476cef9docs: cover Haystack Enterprise Platform in Tracing, Get Started, InstallaClaude Code
  • f1e61b59test: enable mypy typing checks for test/hooks/compaction (#12749)Claude Code
  • 87b8d625fix: strip UTF-8 BOM in text, CSV, Markdown and JSON converters (#12726)Claude Code
  • ceab0a07test: type-check text and CSV converter tests (#12673)GitHub Copilot
  • f4c02eb5chore: Merge main into v3 (#11573)GitHub Copilot
  • 515980d5chore: Merge main into v3 (#11558)GitHub Copilot
  • 98d75dd7fix: preserve string outputs in OutputAdapter (#12322)Cursor Agent
  • d4b39525fix: skip disk devices in ComponentDevice.first_device (#12323)Cursor Agent
  • f7f0bb09fix: keep title keys inside OpenAPI singular example values (#12314)Cursor Agent

What was excluded

Commits in window1,496
Merge commits removed−15
CI / dependency bots removed−172
Considered1,309

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 deepset-ai/haystack

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