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: 54.6%. Bars are scaled to that peak, not to 100%.
Which agents
| Cursor Agent | Anysphere | 367 | 26.5% |
| Claude Code | Anthropic | 146 | 10.6% |
| GitHub Copilot | GitHub | 4 | 0.3% |
| Devin | Cognition | 2 | 0.1% |
Verify it yourself
Sample commits that matched. Every one links to GitHub — check the trailers.
0576319dMM-61876: Add Playwright tests for message priority cases (#38289)Cursor Agent0c75e8fd[MM-67353] Respect collapsed image previews for GIF-picker images (#38491)Cursor Agent69f0f2c2[MM-70642] Add Global Relay SenderAddress config setting (#38451)Cursor Agent41c482b4Enable single team and channel migrations between instances (#37868)Claude Code41cdeab3Add dot release docs for server v11.10.2, v11.9.2, v11.7.11 (#38388)Claude Code5b866b8cAdd collapsible section support to interactive dialogs (#37341)Claude Code41c482b4Enable single team and channel migrations between instances (#37868)GitHub Copilot5b866b8cAdd collapsible section support to interactive dialogs (#37341)GitHub Copilot1be8a68dfeat: pluginapi: filewillbedownloaded / sendtoastmessage (#34596)GitHub Copilot4901a7fc[MM-70186] Add tooltips to platform icons in session attribute picker (#37Devin9d33d87eFix Managed Category creatable input color on dark themes (#36242)Devin
What was excluded
| Commits in window | 1,417 |
| Merge commits removed | −0 |
| CI / dependency bots removed | −34 |
| Considered | 1,383 |
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 mattermost/mattermost