- Dataset
- 2026-10-27-catalog-ai-v2
- Ruleset
- b2e8889c66f7
- Scanned
- 2026-10-27
- Window
- February–September 15, 2026
A dead simple 2D game engine for Go
01Result
hajimehoshi/ebiten ↗hajimehoshi/ebiten AI coding statistics: 71.7%
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% | 31 |
| 2026-03 | 61.3% | 106 |
| 2026-04 | 31.3% | 32 |
| 2026-05 | 89.3% | 56 |
| 2026-06 | 81.1% | 90 |
| 2026-07 | 84.8% | 105 |
| 2026-08 | 70.1% | 224 |
| 2026-09 | 78.5% | 256 |
Peak month: 89.3%. Bars are scaled to that peak, not to 100%.
Which agents
| Agent | Vendor | Commits | Share |
|---|---|---|---|
| Claude Code | Anthropic | 595 | 66.1% |
| OpenAI Codex | OpenAI | 50 | 5.6% |
03Evidence
Inspect the matches
Public commit samples let you inspect the signatures behind the aggregate result.
Matched commit samples
039ef8d5on GitHubvector: clear only the used region of a stencil atlas imageClaude Code913a96a7on GitHubinternal/gamepad: bug fix: hot-plug race aborted RunGame on WindowsClaude Code0d93b28con GitHubaudio: bug fix: one player's error froze all the other playersClaude Code6b22d6bdon GitHubinternal/graphicscommand: fix errcheck failureOpenAI Codex14c9e77aon GitHuball: reuse dispatch completion channelsOpenAI Codexbed52b1aon GitHubinternal/thread: finish migrating call APIsOpenAI Codex
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 | 900 |
| Merge commits removed | −0 |
| CI / dependency bots removed | −0 |
| Considered | 900 |
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 hajimehoshi/ebiten