Mutation-testing findings and the hand-verification protocol - #377
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…nfig, and the protocol Step 5 of the gold plan closed. The headline is about the TOOL, not the code: both Stryker modes produced false survivors (verified by hand-applying the two scariest mutants — 15 and 7 test failures respectively). By hand-verification AdmissionGate is 35/35 mutation-killed. The run still earned its keep: four survivor clusters were real test-inventory gaps, killed by six tests in #376. stryker-config.json is checked in pinning accurate mode for manual per-release runs; mutation testing is deliberately NOT wired as a CI gate until the false-survivor cause is understood — a gate that cries wolf trains people to ignore gates, which is the one lesson this product cannot afford to teach. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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Closes gold plan step 5. Both Stryker modes produced false survivors — verified by hand-applying the two scariest mutants (15 and 7 test failures). By hand-verification AdmissionGate is 35/35 mutation-killed. Checked-in accurate-mode config for manual per-release runs; deliberately not a CI gate until the false-survivor cause is understood — a gate that cries wolf trains people to ignore gates.
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