nx_dyad.nx

nx_dyad.nx -- paired-cell side-by-side composition. Biology: a chromatid dyad is two sister chromatids paired during cell division -- bound by structure, separate by identity. Paired biological organs (kidneys, lungs, eyes) operate in parallel with independent function. nx_dyad runs cell A and cell B side by side receiving the SAME input, producing separate outputs, with NO cross-leak between them. Per [[feedback-cell-immune-system-ransomware-judo-ddos-by-bit]]: "i want to test game a and test game b in a side by side window for user or ai or system bot review i can without it garbaging up everything but also being exclusive so if website a got hit with ransomware we laugh and delete and shift to website b and load up c as the new backup." Naming refusal: nx_compose was the cardinal's tentative name but it's already taken in the repo for image-composition (rule-of- thirds visual scoring). nx_dyad keeps biology naming + unambiguous. Composes: nx_observatory -- watches dyad outputs from outside (parallel telemetry without crossing the cells) nx_brane -- capability tokens ensure A cannot read B's memory and vice versa nx_promote -- when one of the dyad cells gets compromised, its slot in the dyad can be promoted from a chromatin replica nx_pathway -- a dyad is a 2-cell pathway with a special "no cross-edges" constraint V1 ships: - struct NxDyad bundling cell_a_id, cell_b_id, both their input ptrs + output ptrs, both their attention classes - same_input verbs: feed both A and B from one source buffer - both_outputs reader: read both outputs without merging - cross_leak detector: predicate that asserts no shared buffer Gap list (V1 honest perf verdict): - cross_leak is a STRUCTURAL check (different buffer pointers);