nx_dyna_bind_skin_gate.nx

nx_dyna_bind_skin_gate.nx -- THE MOTION GATE: one tooth per NAMED failure mode, every bound READ FROM knowledge/gamefeel_oracle.conf, never written here. WHY THE TEETH ARE SHAPED THIS WAY. The operator's bar is that the motion be best-of-breed and that previous attempts were awful. "Awful" is not one thing, so a single "it deformed" tooth would pass the exact solver we are trying to beat. Each recognisable way secondary motion reads as wrong therefore gets its OWN tooth with its OWN derived bound: dead -- no visible secondary motion. Tooth: the excitation must actually reach the plant. jelly -- under-damped, never settles. Tooth: residual excursion must decay. buzzing -- unstable at the substep. Tooth: the measured natural frequency must be far below the sampling rate; a plant that "oscillates" AT the sample rate is quantization chatter, which is exactly the defect this lane hit and fixed on 2026-08-23. unobservable -- a profile whose response does not complete a period inside the window. Tooth: that must report UNOBSERVABLE and must NOT be scored as a pass. An instrument that cannot see must abstain, never acquit. swimming/symmetry -- the binding must DISCRIMINATE: some skin vertices bound to a region and some skin-locked. Both signals present at once, or the tooth proves nothing. The plant-vs-subject comparison (fn, zeta) is REPORTED against the cited bands. It is deliberately NOT a pass/fail tooth in this gate: knowledge/gamefeel_oracle.conf itself records that our two shipped profiles bracket the human band, so failing the build on it would be failing on a modelling result rather than on a regression. The numbers are printed every run so the movement is visible, and the ratchet belongs in the profile lane that owns those constants. SUBJECT: ./nx_dyna_bind_skin.elf -- the promoted binary, forked. Subprocess capture comes from nx_gatekit_lib because a hand-rolled pipe DEADLOCKED a sibling gate in production today (pid 2240, 50+ minutes in pipe_wait). Never re-roll that plumbing. license_tier: ORIGINAL No hw writes (Rule 26). expect_exit: 0