Anchor grammar: recital-style ordinal dates and worded percentages

↗ view on GitHub · Eli Ziff · 2026-07-28 · 3a44942e

First pass of the measure->fix->re-measure loop on held-out gold:
CUAD typed-containment recall (13,823 expert spans, 510 contracts,
zero LAB overlap) scored 39.0% overall with dates at 50.6%; the
dominant measured gap was recital drafting ("the 15th day of March,
2027", "March 15th, 2027") plus worded percentages ("fifty percent").
After the two grammar productions: dates 69.8% (+19.2pp), Agreement
Date 53.4%->76.3%, overall 43.9%. Duration categories were already
strong (Notice Period 82.0%, Renewal Term 73.8%). The money-category
ceiling is largely structural - many CUAD cap/commitment spans
contain prose with no extractable literal - and is left for the
corpus sweep rather than pattern-chasing.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018bhP89cYSdEEjHNPnxacns
Repository eliziff/Beaver
Author Eli Ziff <eliasziff@gmail.com>
Authored
Parents 69ab6b5f
Stats 2 files changed , +51 , -10
Part of Deterministic legal-text tools ("SLA audit organs")

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