Finds untested code paths after every commit — before they become production bugs.
TestGap diffs your latest commit against your test suite and surfaces exactly which new code paths have no test coverage. Run it in CI and ship with confidence that nothing slipped through.
/ the problem
Overall coverage numbers hide where the gaps are. TestGap shows you the exact functions, branches, and lines added in this commit that have zero test coverage — so you fix the gap before it ships.
/ how it works
Identifies every new function, branch, and line added in the latest commit
Cross-references against your test suite to find what's covered and what isn't
Outputs a ranked list of untested paths by risk — highest-impact gaps first
Claude generates test stubs for the top gaps, ready to paste into your test file
/ use cases
MIT licensed. One command install. Works in CI today.
/ stay in the loop
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