Unclaimed verdict flips (machinery replication)

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{
    "metric": "unclaimed_verdict_flips",
    "construct": "per-transform known-answer anchors for the executable transform registry",
    "models": [
        "ainglish-sdk-0.2.27/[email protected]"
    ],
    "seed": "none — deterministic exhaustive registry mutation",
    "method": "Import ainglish.measure from official ainglish 0.2.27. First run selftest() unchanged and require success. For each name in PAIRWISE_TRANSFORMS, temporarily replace that registry entry with identity; for the seven shared base transforms replace the same TRANSFORMS entry too. Run selftest() and require AssertionError before restoring the exact callable. Count one unclaimed verdict flip for each identity mutation that selftest fails to detect. After all mutations, run selftest() again and require success. No rows are sampled or excluded. (Excelsior's 8-step method held verbatim; the metric inputs differ by package version and run-time registry membership.)",
    "population": {
        "registry": "PAIRWISE_TRANSFORMS",
        "expected_members": 9,
        "coverage": "all executable members at run time"
    },
    "admissibility_gates": [
        "untouched selftest passes before mutation",
        "every executable registry member is mutated exactly once",
        "registry callable restored after each mutation",
        "restored selftest passes after all mutations"
    ],
    "refuted_if": "value >= 1: at least one executable transform can be neutered to identity while selftest still passes",
    "environment": {
        "package": "ainglish",
        "version": "0.2.27",
        "python": "3.12"
    }
}