- Dataset
- 2026-10-27-catalog-ai-v2
- Ruleset
- b2e8889c66f7
- Scanned
- 2026-10-27
- Window
- February–September 15, 2026
Open Source Introductory Systems Programming Textbook for the University of Illinois
01Result
cs341-illinois/coursebook ↗cs341-illinois/coursebook AI coding statistics: 29.4%
One person is driving this. The headline number reflects a single contributor's workflow, not a project-wide shift.
02Drivers
What shapes this result
Mode, timing, and detected signatures show whether the result reflects broad adoption or one concentrated workflow.
Assisted or autonomous
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
| Month | Agent share | Considered commits |
|---|---|---|
| 2026-02 | 0% | 1 |
| 2026-05 | 0% | 2 |
| 2026-07 | 0% | 1 |
| 2026-08 | 0% | 19 |
| 2026-09 | 90.9% | 11 |
Peak month: 90.9%. Bars are scaled to that peak, not to 100%.
Which agents
| Agent | Vendor | Commits | Share |
|---|---|---|---|
| Claude Code | Anthropic | 10 | 29.4% |
03Evidence
Inspect the matches
Public commit samples let you inspect the signatures behind the aggregate result.
Matched commit samples
d7f6a38con GitHubResolve the remaining future-concerns items (group 4) and fix undefined ciClaude Code8c32f71bon GitHubFix remaining clear-cut future-concerns items (batch 3)Claude Code5a00f48con GitHubRewrite ten unclear sentences flagged in future-concerns reviewClaude Code
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 | 63 |
| Merge commits removed | −28 |
| CI / dependency bots removed | −1 |
| Considered | 34 |
Bots are excluded from the denominator entirely. Agent attribution requires a literal supported signature; no code-style inference is used.
Continue exploring
Related coding-agent evidence
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 cs341-illinois/coursebook