What it does
It supports Vitest, Jest, Node, Playwright, Cargo and Go, producing filters that each runner already understands.
Agent tooling
jev-test-filter
Turns a Git diff into native runner filters for the tests most likely to be affected.
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How you can use it
A developer provides an access key to connect the software to TypeSafe. TypeSafe is an outside artificial intelligence service. When someone edits the project code, the developer runs this tool. The software looks at the changes and asks TypeSafe which tests might break.
The tool then automatically launches the regular testing software. It checks only the selected tests instead of running everything. This saves time during everyday work. However, the process is just a helpful shortcut. The software cannot guarantee that the skipped tests will pass.