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zephyrproject-rtos/zephyr ↗
0.2%
of 20,406 commits were committed by an AI agent — a floor, not an estimate
0.2% agent · top contributor 30.6%14 contributors
org-wide

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

36
agent commits
20,370
human commits
14
agent contributors
30.6%
largest contributor

Assisted or autonomous

36assisted
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: 0.4%. Bars are scaled to that peak, not to 100%.

Which agents

Claude CodeAnthropic300.1%
Cursor AgentAnysphere30%
GitHub CopilotGitHub30%

Verify it yourself

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

  • d1994b65boards: realtek: rtl87x2g: set flash controllerClaude Code
  • c5469546drivers: serial: mcux_lpuart: bound the TC wait in configureClaude Code
  • affa5d05twister: reject whitespace in list values that name one itemClaude Code
  • ca63da40drivers: wifi: siwx91x: defer post-join work off event engineCursor Agent
  • 0b4294a2bluetooth: gatt: document BT_GATT_PERM_PREPARE_WRITECursor Agent
  • 5fbd66danet: quic: Offer x25519 and secp256r1 client key sharesCursor Agent
  • b92808c5boards: infineon: fix board images per reviewer feedbackGitHub Copilot
  • f25928c0boards: infineon: fix documentation errors across 7 boardsGitHub Copilot
  • 3be40135boards: infineon: kit_pse84_ai: enable WiFi supportGitHub Copilot

What was excluded

Commits in window20,438
Merge commits removed−0
CI / dependency bots removed−32
Considered20,406

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 zephyrproject-rtos/zephyr

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