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.

An extensible framework for linking databases and interactive views.

uwdata/mosaic ↗

uwdata/mosaic AI coding statistics: 7.1%

of 156 commits in February–September 15, 2026 were committed by an AI agent — a floor, not an estimate
7.1% agent · top contributor 63.6%4 contributors
team

A small group is using agents. Adoption has spread beyond one person but is not project-wide.

11
agent commits
145
other considered commits
4
agent contributors
63.6%
largest contributor

What shapes this result

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

Assisted or autonomous

9assisted
2autonomous

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
2026-036.7%15
2026-043.2%31
2026-050%14
2026-060%17
2026-0719.4%31
2026-087.1%28
2026-095%20

Peak month: 19.4%. Bars are scaled to that peak, not to 100%.

Which agents

AgentVendorCommitsShare
Claude CodeAnthropic95.8%
GitHub CopilotGitHub21.3%

Inspect the matches

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

Matched commit samples

  • 5ab159a5 on GitHubfix(core): reject the in-flight socket request on close (#1225)Claude Code
  • a68bf5a3 on GitHubfix(sql): add missing DuckDB aggregate names, guard against future drift (Claude Code
  • b49866c8 on GitHubfix(sql): make verbatim window detection whitespace-tolerant (#1145)Claude Code
  • be6edff5 on GitHubchore: bump the cargo group in /packages/server/duckdb-server-rust with 6 GitHub Copilot
  • f7cca7b8 on GitHubchore: bump the dev-deps group with 12 updates (#970)GitHub Copilot

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 window202
Merge commits removed−0
CI / dependency bots removed−46
Considered156

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

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 uwdata/mosaic

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