nx_vizsla_segment_gate.nx

nx_vizsla_segment_gate.nx -- VIZSLA saved-segments gate. Construction-known oracle + contact->segment integration. Ingest 8 fields via BLESSED nx_vizsla_contact (date 2026-01-01): mom city=Dallas tier=family alex city=Dallas tier=colleague pat city=Austin tier=colleague sam city=Dallas tier=colleague Segments: dallas = city=Dallas -> mom,alex,sam (3) ; pat excluded dal-colleagues= city=Dallas AND tier=colleague -> alex,sam (2) ; mom excluded (family) = AND proof redefine dallas @2026-02-01 = city=Austin -> pat (1) ; latest-def-per-name wins Rows: 1 ingest-fields contact load new=8 seg-3101 (integration precondition) 2 define define dallas city=Dallas -> new=1 3 apply-single apply dallas -> mom+alex+sam present, pat ABSENT, matched=3 4 apply-AND dal-colleagues -> alex+sam present, mom ABSENT (AND excludes family), matched=2 5 list both names present, segments=2 6 latest-def-wins redefine dallas->Austin, apply -> pat present, mom ABSENT, matched=1 7 idempotent re-define dallas city=Dallas (same) -> new=0 (CID dedup) 8 neg-unknown apply ghost (never defined) -> fail loud exit 1 9 neg-bad-pairs define with odd criteria (3 tokens) -> fail loud exit 1 Evidence: VIZSLA-SEGMENT-GATE -> stdout + knowledge/status/vizsla_gate.log; exit 0 iff 9/9. license_tier: ORIGINAL