handsomefox Test gap
Scope: staged changes by default, or a named branch or package. Nothing outside it appears in the output.
Measure
Run the repo's coverage tooling and read the data. Never estimate coverage by reading source. If coverage tooling is not configured here, say so and stop.
Cross-reference
Intersect coverage with the diff hunks. A line executed by an unrelated test is executed, not tested — check that some test asserts on that branch's behavior rather than merely reaching it. Report those as "executed, unasserted."
Rank by consequence
Silently wrong results, then data loss, then crashes, then degradation. Error paths, boundaries, and concurrent access before happy paths.
Exclude
Generated code, trivial accessors, anything the diff did not touch, and tests that would assert the implementation matches itself.
Output
Table: location, uncovered branch, consequence if wrong, nearest existing test, the assertion that closes it.