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Jev-Powered QA Agent Tests Apps

Stencil rebuilt a QA agent around Jev: a frontier model plans tests, Jev chooses browser actions, and vision handles visual checks.

View on X time28.3 seconds
Dan Leshem@leshemco๐•
we rebuilt a QA agent around @typesafeaiโ€™s Jev at Stencil. a frontier model plans the test. Jev chooses browser actions. vision handles the visual checks. here it signs in, opens an app, triggers the paywall, and checks a spacing fix. 5 checkpoints passed in 28.3 seconds. every checkpoint has a screenshot, every decision has a trace. i can see Jev driving decisions across our software factory: which issues to prioritize, what to test, when to retry, and when a change needs human review.
Sep 24, 2026X postsView on X
The agent signs in, opens an app, triggers the paywall, and checks a spacing fix. Each checkpoint has a screenshot, and each decision has a trace.

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