- Dataset
- 2026-10-27-catalog-ai-v2
- Ruleset
- b2e8889c66f7
- Scanned
- 2026-10-27
- Window
- February–September 15, 2026
JavaScript pub/sub library supporting advanced subscription features, and several helpful add-ons.
01Result
postaljs/postal.js ↗postaljs/postal.js AI coding statistics: 81.5%
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 |
|---|---|---|
| 2026-03 | 82.8% | 58 |
| 2026-04 | 71.4% | 7 |
Peak month: 82.8%. Bars are scaled to that peak, not to 100%.
Which agents
| Agent | Vendor | Commits | Share |
|---|---|---|---|
| Claude Code | Anthropic | 53 | 81.5% |
03Evidence
Inspect the matches
Public commit samples let you inspect the signatures behind the aggregate result.
Matched commit samples
72f9033aon GitHubUpdate docs for postal-monitor example and regenerate API referencesClaude Codeee9f5994on GitHubAdd postal-monitor example appClaude Codee0b3285eon GitHubHarden UDS transport and replace integration tests with multi-process apprClaude 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 | 76 |
| Merge commits removed | −9 |
| CI / dependency bots removed | −2 |
| Considered | 65 |
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 postaljs/postal.js