Docs-only PR. Follow-up to ADR-0127-0128-RESULTS' Path-B trigger.
Replaces ADR-0120's GSM8K-coverage requirement for the
mathematics_logic expert promotion with a composite gate over
three architecture-aligned benchmarks:
Benchmark 1: Symbolic equivalence (~500 algebra cases, public
+ sealed split). Primary discriminator — CGA exact-recall.
Pass: correct_rate >= 0.95, wrong == 0.
Benchmark 2: CORE-native teaching-corpus eval. Internal
consistency lane sourced from ratified packs (en_arithmetic_v1
+ en_units_v1 + en_numerics_v1). Grammar matches by
construction (no paraphrase-variance gap).
Pass: correct_rate >= 0.95, trace_hash byte-equality, wrong == 0.
Benchmark 3: Bounded-grammar word-problem set (~150 cases,
pre-filtered to ADR-0126/0127/0128 parser scope). Demonstrates
end-to-end pipeline determinism on the in-scope distribution.
Includes adversarial out-of-grammar probes.
Pass: correct_rate >= 0.95, wrong == 0.
Three benchmarks (not one) prevent overfitting per ADR-0114a
and force the math expert to demonstrate three distinct
architectural properties (algebraic correctness, internal
consistency, end-to-end pipeline determinism).
GSM8K stays as a stress-test lane the math expert RUNS but is
NOT gated on. Refusal counts reported in expert-claims artifact
as honest disclosure.
Other 12 ADR-0120 expert-promotion checks UNCHANGED.
Status: Proposed. The contract revision (removing GSM8K from
the gate) is a follow-up implementation PR after sub-phases
0131.1-0131.6 land the new benchmark substrate.
