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espressif/arduino-esp32 ↗
12.1%
of 330 commits were committed by an AI agent — a floor, not an estimate
12.1% agent · top contributor 27.5%14 contributors
org-wide

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

40
agent commits
290
human commits
14
agent contributors
27.5%
largest contributor

Assisted or autonomous

40assisted
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: 24.2%. Bars are scaled to that peak, not to 100%.

Which agents

GitHub CopilotGitHub329.7%
Claude CodeAnthropic72.1%
Cursor AgentAnysphere30.9%

Verify it yourself

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

  • 21d2fc43feat(ble): Add test cases and memory management documentation (#12825)GitHub Copilot
  • f1073121feat(doc): include Home Assistant as Matter environment (#12810)GitHub Copilot
  • 28e7fa91fix(ble): Fix oversized AD bounds (#12805)GitHub Copilot
  • 1630aecbfeat(matter): allow setting Matter Descriptor TagList attribute for endpoiClaude Code
  • 2787dabcfeat(boards): Add Raiden S01 ESP32-S3 devkit board (#12835)Claude Code
  • 7c5ec7f4feat(board): add TinyUF2 16MB partition schemes for LilyGo T-Display-S3 (#Claude Code
  • 1630aecbfeat(matter): allow setting Matter Descriptor TagList attribute for endpoiCursor Agent
  • 33c3a085feat(board): add Waveshare ESP32-C5-LCD-1.47 (#12811)Cursor Agent
  • 8667595afix(ledc): Add timeout to duty update wait loop to prevent WDT (#12726)Cursor Agent

What was excluded

Commits in window344
Merge commits removed−4
CI / dependency bots removed−10
Considered330

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 espressif/arduino-esp32

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