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: 3.7%. Bars are scaled to that peak, not to 100%.
Which agents
| Claude Code | Anthropic | 699 | 2.2% |
| Cursor Agent | Anysphere | 100 | 0.3% |
| GitHub Copilot | GitHub | 27 | 0.1% |
| OpenAI Codex | OpenAI | 4 | 0% |
| Other / generic agent | Various | 1 | 0% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
1034215adocs(free-tier): drop the rehearsal page and its referencesClaude Code2a94ca80fix(free-tier): review round 2 — route-gate the allowance verdict, keep poClaude Codea241f42fcopy(free-tier): "it's free" without "keeps the free model" — signed-in frClaude Code3ccad12cfix(desktop): preserve reading intent across history and pane changesCursor Agentdab6fe29fix(update): drop untrusted fleet fallback versionCursor Agent8b3059fcfix(cron): keep self-removed runs alive across post-removal heartbeatsCursor Agent0b50c8e4ci: wrap uv python install in retry action on OS test laneGitHub Copilot141d5db9fix(cron): scope in_channel thread_id clear to the live-send/seed gateGitHub Copilot5f2fdf66feat: per-model compression threshold overrides (v2, rebased on main)GitHub Copilotb595fcd5fix(desktop): keep the Linux HUD clickable and recoverableOpenAI Codexcfb55de5Update Stripe Projects skill docs (#48673)OpenAI Codex17588521fix(docs): align fallback provider config examplesOpenAI Codex7ebebfbbHarden Skills Guard multi-word prompt patterns (#26852)Other / generic agent
What was excluded
| Commits in window | 35,373 |
| Merge commits removed | −2,880 |
| CI / dependency bots removed | −356 |
| Considered | 32,137 |
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 NousResearch/hermes-agent