- Dataset
- 2026-10-27-catalog-ai-v2
- Ruleset
- b2e8889c66f7
- Scanned
- 2026-10-27
- Window
- February–September 15, 2026
Input OpenAPI. Output SDKs and Docs.
01Result
fern-api/fern ↗fern-api/fern AI coding statistics: 39%
Adoption is broad. Many contributors are committing agent-authored work, which is what a real organisational rollout looks like.
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 | 29.9% | 798 |
| 2026-03 | 33.1% | 1129 |
| 2026-04 | 33.2% | 1037 |
| 2026-05 | 54.2% | 365 |
| 2026-06 | 48.5% | 497 |
| 2026-07 | 44.9% | 390 |
| 2026-08 | 74.1% | 143 |
| 2026-09 | 64.9% | 94 |
Peak month: 74.1%. Bars are scaled to that peak, not to 100%.
Which agents
| Agent | Vendor | Commits | Share |
|---|---|---|---|
| Devin | Cognition | 1586 | 35.6% |
| Claude Code | Anthropic | 215 | 4.8% |
| Cursor Agent | Anysphere | 21 | 0.5% |
03Evidence
Inspect the matches
Public commit samples let you inspect the signatures behind the aggregate result.
Matched commit samples
ae267cbcon GitHubfeat(cli): add base-url-env for SDK base URL environment variable (#17705)Devin93981eb5on GitHubfeat(cli): add site-level changelog for multi-product docs sites (#17737)Devin447f6e37on GitHubfix(openapi): union `required` across allOf branches so redeclared parent-Devinae267cbcon GitHubfeat(cli): add base-url-env for SDK base URL environment variable (#17705)Claude Code93981eb5on GitHubfeat(cli): add site-level changelog for multi-product docs sites (#17737)Claude Codee5b5b016on GitHubfeat(cli-generator): honor api.auth.any and fix OAuth2 grant_type, token UClaude Coded940e2b5on GitHubchore(cli): add beta CLI publish pipeline (#17753)Cursor Agent7282cff5on GitHubchore(cli): add CLI v1 beta build target (beta endpoints) (#17743)Cursor Agentabae0834on GitHubchore(cli): consolidate theme-eligible field keys (#16065)Cursor Agent
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 | 5,721 |
| Merge commits removed | −0 |
| CI / dependency bots removed | −1,268 |
| Considered | 4,453 |
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 fern-api/fern