Pulse
2026-09-18-v3.0
Dataset
2026-10-27-catalog-ai-v2
Ruleset
b2e8889c66f7
Scanned
2026-10-27
Window
February–September 15, 2026
Catalog tracking observation. This repository is measured with the same fixed window and ruleset, but it is not part of the published benchmark or its aggregate claims.

The official sources for the RDKit library

01Result

rdkit/rdkit ↗

rdkit/rdkit AI coding statistics: 10.5%

of 275 commits in February–September 15, 2026 were committed by an AI agent — a floor, not an estimate
10.5% agent · top contributor 24.1%10 contributors
org-wide

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

29
agent commits
246
other considered commits
10
agent contributors
24.1%
largest contributor

02Drivers

What shapes this result

Mode, timing, and detected signatures show whether the result reflects broad adoption or one concentrated workflow.

Assisted or autonomous

29assisted
0autonomous

Assisted — a developer’s identity authored the commit and the agent added itself as co-author. Autonomous — a bot identity authored the commit without a human identity attached.

Agent share by month

Agent-attributed commit share by month
MonthAgent shareConsidered commits
2026-020%24
2026-0310.8%37
2026-046.7%15
2026-0511.1%27
2026-0628.6%28
2026-0716.3%43
2026-084.6%65
2026-098.3%36

Peak month: 28.6%. Bars are scaled to that peak, not to 100%.

Which agents

AgentVendorCommitsShare
Claude CodeAnthropic248.7%
GitHub CopilotGitHub51.8%

03Evidence

Inspect the matches

Public commit samples let you inspect the signatures behind the aggregate result.

Matched commit samples

  • 23094fcc on GitHubFix issue #8108: assignStereochemistry should detect atropisomers (#9190)Claude Code
  • cce078ce on GitHubExpose attachment-point labels and identity (#9454)Claude Code
  • 65a64b56 on GitHubFix pandas version parsing in PandasPatcher and guard a cairo-only test (#Claude Code
  • 78d82de8 on GitHubPreserve ChemDraw Z/E bonds when annotated (#9357)GitHub Copilot
  • ac725497 on GitHubFix #9338 by canonicalizing double bond stereo limited to STEREO E/Z/CIS/TGitHub Copilot
  • d284ebfc on GitHubSupport cleaning CDXML NeedsClean atom's hydrogens (#9355)GitHub Copilot

04Method

What entered the denominator

The result begins with commit history, removes merges and routine automation, and reports literal agent signatures as a lower bound.

Exclusion ledger

Commits in window279
Merge commits removed−0
CI / dependency bots removed−4
Considered275

Bots are excluded from the denominator entirely. Agent attribution requires a literal supported signature; no code-style inference is used.

Continue exploring

Claude Code commitsBrowse repositories with detected Claude Code signatures →GitHub Copilot commitsBrowse repositories with detected GitHub Copilot signatures →GitHub AI commit analyzerInspect another repository with the same evidence model →
Reproduce this observation

Run the same detector locally.

Deterministic signature matching; no code-style inference. Squash merges can remove trailers, so this result remains a measured floor.

npx qmmit-cli rdkit/rdkit

Scan another repository

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