Adoption is broad. Many contributors are committing agent-authored work, which is what a real organisational rollout looks like.
Assisted or autonomous
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
Peak month: 7.8%. Bars are scaled to that peak, not to 100%.
Which agents
| Claude Code | Anthropic | 34 | 2.6% |
| GitHub Copilot | GitHub | 4 | 0.3% |
| Cursor Agent | Anysphere | 1 | 0.1% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
4338e13eKAFKA-21076: Return TELEMETRY_TOO_LARGE for oversize decompressed telemetrClaude Code051a1860KAFKA-20873: Fix deadlock between removeStreamThread and addStreamThread (Claude Codeebb7d76fMINOR: Fix typos in Kafka Streams test method names (#23416)Claude Codefe1110d9KAFKA-20735: Skip state-directory lock on close when there are no sto… (#2GitHub Copilotfb557a34KAFKA-20717: Add broker-side set/get observability sensors for streams topGitHub Copilotebd7cd39MINOR: Document transaction.timeout.ms behavior under EOS in Streams confiGitHub Copilot26180810KAFKA-21017: Deflake ConsumerGroupCommandSaslAuthenticationTest (#23154)Cursor Agent
What was excluded
| Commits in window | 1,327 |
| Merge commits removed | −0 |
| CI / dependency bots removed | −2 |
| Considered | 1,325 |
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 apache/kafka