Supercov
Coverage so coding agents can work overnight
What it does
Supercov turns your coding agent into a pseudo-software factory. It’s a test coverage tool for coding agents so they could work in a loop and keep writing tests where it makes sense.
Supercov turns uncovered paths into the next focused test for coding agents, then verifies the improvement with your existing test suite.
Measure code coverage with npx supercov and write tests til 100%. Use npx supercov to improve coverage. Only write tests. Keep going while useful gaps remain. I found useful checkout gaps. I’m adding focused tests for expired and missing sessions. Coverage is now 74%. The suite passes, so I’m continuing with the next gaps. Each run returns the uncovered paths. The agent adds focused tests, reruns the suite, and continues while useful gaps remain. Before a reset—or overnight—turn idle agent time into coverage that stays with the repository. Every pass returns fresh, executable evidence, so agents can keep iterating around the clock while regressions are caught before they ship. From lines…from supercov.com
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