Pre-registration before the shared-layer edit (PR ruling), all in the record:
1. Refusal-histogram baseline (tune, n=261): 'no injection' = 196/261 (75%) —
a SHARED bottleneck across every family, not a compare defect; 48 statement,
9 question, 3 PARSED (compare). Pinned; assert stable-or-explained after —
only sanctioned delta = compare 'no injection' -> PARSED, disclosed.
2. Funnel-conditioned escalation rule (pre-committed): X=15 miss read via the
funnel — compare-specific mass -> practice ruling; shared-layer mass ->
shared-layer design increment (NOT practice). Load-bearing: practice cannot
learn past a deterministic wall (better candidates still cross the same
pipeline), so shared bottlenecks are design work regardless of X.
3. Reframe recorded: compare is the first slice of a larger reader project
(reader parses ~1% of real GSM8K; 'no injection' 75% is a shared wall).
Not scope creep — the arc seeing its true size.
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