Stage 18R Tier A verdict + Tier C design: stop condition cleared, w4 retained, rerank dropped from default

↗ view on GitHub · Eli Ziff · 2026-07-31 · eaf19f89

Tier A (deterministic, LF): maud pool recall now RISES with context
weight (0.6028 w0 -> 0.6544 w1 -> 0.6442 w4) after the header
regeneration, against 0.6028 -> 0.5788 before. Enrichment is worth ~2x
what was recorded (maud lexR4 +0.193 vs +0.092). w1 is now maud-optimal
but w4 wins every general metric, so w4 is RETAINED and w1 recorded -
re-picking on the hardest single source is benchmark tuning.

R1 clause: beats chars on every source on LF (contractnli pool rises
where the original recorded a drop); maud prong still misses, so R1
stays falsified on half its recorded basis. R2: re-falsified decisively.

Tier C staged for a fast first read: pools injected via --pool-jsonl so
only composition is paid, four arms x1 replicate, spread-keyed
escalation to 3 only for pairs inside the band. Rerank dropped from the
default candidate per Eli (76.8k chars/query at p1600, gain not
separable from filename matching per F1); retained as a control arm that
prices it. Preview-500 isolation retired as moot.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01H9ToHYJVDxfeJcJwdzrP2H
Repository eliziff/Beaver
Author Eli Ziff <eliasziff@gmail.com>
Authored
Parents d6813dd7
Stats 1 file changed , +68
Part of Legal grounding and retrieval research

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