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.

General-purpose editor/IDE with high expansibility in Common Lisp

01Result

lem-project/lem ↗

lem-project/lem AI coding statistics: 4.3%

of 256 commits in February–September 15, 2026 were committed by an AI agent — a floor, not an estimate

4.3% agent · top contributor 45.5%5 contributors

team

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

agent commits

245

other considered commits

agent contributors

45.5%

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

11assisted

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

Peak month: 17.6%. Bars are scaled to that peak, not to 100%.

Which agents

Agent	Vendor	Commits	Share
Claude Code	Anthropic	10	3.9%
GitHub Copilot	GitHub	1	0.4%

03Evidence

Inspect the matches

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

Matched commit samples

d4006339 on GitHubfix(server): don't busy-wait for the first client loginClaude Code
d65ad827 on GitHubAdd Windows deployment pipeline (icon, installer, GUI subsystem)Claude Code
4c2482ea on GitHubFix webview frontend not exiting on C-x C-c / window close on WindowsClaude Code
75b48185 on GitHubAdding Dockerfile mode (#2279)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 window	294
Merge commits removed	−24
CI / dependency bots removed	−14
Considered	256

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 lem-project/lem

Scan another repository

Try

Month	Agent share	Considered commits
2026-02	0%	30
2026-03	0%	11
2026-04	0%	47
2026-05	17.6%	34
2026-06	1.6%	64
2026-07	9.1%	33
2026-08	0%	19
2026-09	5.6%	18