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addyosmani/agent-skills ↗
11.2%
of 339 commits were committed by an AI agent — a floor, not an estimate
11.2% agent · top contributor 26.3%20 contributors
org-wide

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

38
agent commits
301
human commits
20
agent contributors
26.3%
largest contributor

Assisted or autonomous

36assisted
2autonomous

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: 21.9%. Bars are scaled to that peak, not to 100%.

Which agents

Claude CodeAnthropic298.6%
GitHub CopilotGitHub51.5%
Cursor AgentAnysphere41.2%

Verify it yourself

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

  • 45fd4a04docs(security): destructive path targets need an allowlist, a depth floor,Claude Code
  • 6a9f2eb2docs(observability): name the entry point when several write to one logClaude Code
  • 1483fc12fix(skills): add database-migration and dependency-audit vocabulary to twoClaude Code
  • 75dfcb33Potential fix for pull request findingGitHub Copilot
  • 77ffedb2fix: update marketplace.json to use explicit GitHub source formatGitHub Copilot
  • 4d277aa7docs(skills): tighten frontmatter for idea-refine and browser-testingGitHub Copilot
  • bb68af56fix(hooks): quote opt-in hook paths in setup docsCursor Agent
  • b68f553adocs: add skill-gap issue form for reporting guidance mismatchesCursor Agent
  • f25f467efix(validator): reject fenced-block headings and negated triggers (#387)Cursor Agent

What was excluded

Commits in window512
Merge commits removed−173
CI / dependency bots removed−0
Considered339

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 addyosmani/agent-skills

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