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.

01Result

calibrain/shelfmark ↗

calibrain/shelfmark AI coding statistics: 3.6%

of 250 commits in February–September 15, 2026 were committed by an AI agent — a floor, not an estimate
3.6% agent · top contributor 22.2%8 contributors
team

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

9
agent commits
241
other considered commits
8
agent contributors
22.2%
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

9assisted
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
2026-022.9%34
2026-030%41
2026-040%32
2026-050%34
2026-065.9%17
2026-074.8%21
2026-0810.2%49
2026-094.5%22

Peak month: 10.2%. Bars are scaled to that peak, not to 100%.

Which agents

AgentVendorCommitsShare
Claude CodeAnthropic72.8%
GitHub CopilotGitHub10.4%
Cursor AgentAnysphere10.4%

03Evidence

Inspect the matches

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

Matched commit samples

  • c5760033 on GitHubfeat(naming): add {FirstAuthor} template token (#1322)Claude Code
  • 463ef49a on GitHubfeat(search): let each user pick their own default book languages (#1255)Claude Code
  • 9bcf5951 on GitHubfeat(prowlarr): warn when an indexer declares a format Shelfmark can't proClaude Code
  • 3a9cff98 on GitHubfeat(metadata): add Moly.hu metadata provider (#1172)GitHub Copilot
  • 5f3a94d3 on GitHubfix(transmission): handle completion when seed ratio is 0 (#1023)Cursor Agent

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 window346
Merge commits removed−0
CI / dependency bots removed−96
Considered250

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 →Cursor Agent commitsBrowse repositories with detected Cursor Agent signatures →Python AI coding statisticsCompare evidence across Python repositories →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 calibrain/shelfmark

Scan another repository

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