nx_greeting_gate.nx

nx_greeting_gate.nx -- REFEREE for WRITING rung W-GR-1 (nx_greeting). [T1] whole-word: "yours" must not satisfy the address beat via "you". [T2] case-insensitivity. [T3] a well-formed greeting: all three beats, in order -> COMPLETE, 1000 permil. [T4] ★ORDER IS LOAD-BEARING: the SAME three beats scrambled -> PARTIAL, never COMPLETE. Without this tooth the organ would be a presence counter wearing a structure label. [T5] two beats -> PARTIAL. [T6] ★NEG-CONTROL: a flat descriptive paragraph (a character sheet) -> FLAT. [T7] ★NEG-CONTROL: introduction ONLY -> FLAT, not PARTIAL (one beat is a bio line). [T8] scoring is monotone: FLAT < PARTIAL(2 beats) < PARTIAL(3 scrambled) < COMPLETE. [T9] positions are real: the beat finder returns WHERE, and intro precedes address in T3. [T10] NEG-CONTROL: an empty greeting is FLAT and scores 0, never a divide trap. Fixtures are ordinary SFW prose: this gate measures STRUCTURE, and structure is register-neutral by design -- the same three beats grade an explicit opening identically. Evidence -> stdout + knowledge/status/greeting_gate.log. Exit 0 GREEN / 1 RED. Sovereign x86_64. license_tier: ORIGINAL expect_exit: 0