- Dataset
- 2026-10-27-catalog-ai-v2
- Ruleset
- b2e8889c66f7
- Scanned
- 2026-10-27
- Window
- February–September 15, 2026
JS version of Pact. Pact is a contract testing framework for HTTP APIs and non-HTTP asynchronous messaging systems.
01Result
pact-foundation/pact-js ↗pact-foundation/pact-js AI coding statistics: 8.8%
A small group is using agents. Adoption has spread beyond one person but is not project-wide.
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% | 9 |
| 2026-03 | 0% | 5 |
| 2026-04 | 0% | 8 |
| 2026-05 | 19% | 21 |
| 2026-06 | 33.3% | 3 |
| 2026-07 | 20% | 5 |
| 2026-08 | 0% | 15 |
| 2026-09 | 0% | 2 |
Peak month: 33.3%. Bars are scaled to that peak, not to 100%.
Which agents
| Agent | Vendor | Commits | Share |
|---|---|---|---|
| GitHub Copilot | GitHub | 4 | 5.9% |
| Claude Code | Anthropic | 2 | 2.9% |
03Evidence
Inspect the matches
Public commit samples let you inspect the signatures behind the aggregate result.
Matched commit samples
ef8c9f9aon GitHubfix(regression): fix Apollo/node-fetch v3 compatibility and graphql peer dGitHub Copilot38a4b9b4on GitHubfeat: Add HTTP response status code matching support (#1790)GitHub Copilotc31ebb21on GitHubfix(v3): pass cors option to mock server transport, defaulting to true (#1GitHub Copilotfed47e22on GitHubfix(verifier): run beforeEach/afterEach once per interaction without desynClaude Codef6b204c6on GitHubfix: ESM import issue (#1860)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 | 249 |
| Merge commits removed | −0 |
| CI / dependency bots removed | −181 |
| Considered | 68 |
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 pact-foundation/pact-js