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Yeachan-Heo/oh-my-claudecode ↗
33.3%
of 3,405 commits were committed by an AI agent — a floor, not an estimate
33.3% agent · top contributor 43.5%76 contributors
org-wide

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

1,134
agent commits
2,271
human commits
76
agent contributors
43.5%
largest contributor

Assisted or autonomous

1134assisted
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: 78.8%. Bars are scaled to that peak, not to 100%.

Which agents

Claude CodeAnthropic99329.2%
OpenAI CodexOpenAI1434.2%
Gemini CLIGoogle20.1%

Verify it yourself

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

  • 023d56cafeat(hud): respect CLAUDE_CODE_OAUTH_TOKEN when reading usage (#4004)Claude Code
  • ff77bb2ffeat(shipyard): add agent-doc-discipline skill and two-axis review gate (#Claude Code
  • 9ef27f89feat(hooks): make the SessionStart context budget configurable via OMC_SESClaude Code
  • 12add85afix: narrow workflow drift decision detection (#3475)OpenAI Codex
  • 29289f64fix(team): recover confirmed-dead runtime-v2 workers (#3462)OpenAI Codex
  • a32217d6fix(ci): isolate subagent lock benchmark (#3459)OpenAI Codex
  • 3cce4961feat(team): add Grok Build as a team worker + ask provider (#3159)Gemini CLI
  • 0173537efix(security): enforce directory boundary in isTrustedPrefix (CLI trusted-Gemini CLI

What was excluded

Commits in window4,363
Merge commits removed−958
CI / dependency bots removed−0
Considered3,405

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 Yeachan-Heo/oh-my-claudecode

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