Folds in Shay's rulings on the spike:
- ERRATA sections added to ADR-0249, ADR-0250, and both acceptance-evidence docs
(statuses stay Accepted): corpus label 'real GSM8K dev holdout' -> 'CORE-authored
GSM8K-style corpus (ADR-0119.2)'. Mechanism claims (wrong=0, PARITY, conservation,
atomicity, chain-of-custody, 200/200) all stand; reframe not retraction. Covers the
#74 review comment that repeated the label. (Also fixed ADR-0250 evidence status ->
RATIFIED, which the ratification housekeeping missed.)
- Two instruments named + never-blended scoreboard: authored = mechanism-correctness
(200/200 stands as that); official holdout = generalization (5/500 symbolic / 0/500
corridor). public/dev-1 floors relabeled MECHANISM floors, composition-disclosed.
- Censored-incidence fix: parse-INDEPENDENT tagging of 100 official cases (documented
heuristic). 70/100 carry frontier markers (rate 31, fraction 28, compare_mult 20) ->
(c) refuted, frontier COMMON not rare; the table is the reader-arc curriculum by
real-world frequency.
- Reader-practice-loop design with the four non-negotiable constraints (real held-out
data only; wrong=0 gates consolidation; sealed test untouched; holdout_dev split
disjoint from the measured metric). Sequencing: capability->practice->calibration->
serve; reader is the critical path for all three; serve-landing de-prioritized (0/500).
Spike verdict for ruling; nothing built.
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