- Dataset
- 2026-10-27-catalog-ai-v2
- Ruleset
- b2e8889c66f7
- Scanned
- 2026-10-27
- Window
- February–September 15, 2026
Agent skills and an AGENTS.md workflow template — isolate in worktrees, build to a service layer, prove with evidence, ship with before/after proof and Greptile review loops. For Claude Code, Cursor, and Codex.
01Result
michaelshimeles/rstack ↗michaelshimeles/rstack AI coding statistics: 92.6%
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 |
|---|---|---|
| 2026-07 | 33.3% | 3 |
| 2026-08 | 100% | 10 |
| 2026-09 | 100% | 14 |
Peak month: 100%. Bars are scaled to that peak, not to 100%.
Which agents
| Agent | Vendor | Commits | Share |
|---|---|---|---|
| Cursor Agent | Anysphere | 13 | 48.1% |
| Claude Code | Anthropic | 12 | 44.4% |
03Evidence
Inspect the matches
Public commit samples let you inspect the signatures behind the aggregate result.
Matched commit samples
957cf100on GitHubREADME: apply unslop to the existing proseCursor Agenta007fcddon GitHubaddress greptile review feedback (greploop iteration 1)Cursor Agentc27c4c33on GitHubunslop: vendor the pstack skill and wire it into AGENTS.mdCursor Agentbc477939on GitHubaddress greptile review feedback (greploop iteration 1)Claude Code353fccd1on GitHubgreploop: make the iteration cap an input, default 10Claude Code59e6551bon GitHubaddress greptile review feedback (greploop iteration 4)Claude 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 | 33 |
| Merge commits removed | −6 |
| CI / dependency bots removed | −0 |
| Considered | 27 |
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 michaelshimeles/rstack