title: A mutant runs only the tests that cover it status: active origin: kind: agent recorded_at: '2026-10-29T17:52:37.720Z' id: SCEN-a-mutant-runs-only-the-tests-that-cover-it type: scenario --- Given the example project, when the user runs mutalog run, then the mutant in sum/2 is killed by calc:sum and covered by calc:sum only.

Context

Checked end to end by e2e:runs_only_covering_tests, which runs Mutalog as a separate process.