nx_arch_board.nx

nx_arch_board.nx -- THE TEAM'S STANDING JUDGMENT OF THE FAMILY TREE (operator 2026-07-16: "get the nishi team and architect and builder and pm and all that logically evaluating our family tree and making sure we are doing state of the art architecture"). This is the ARCH DRIFT RATCHET rung (mom 13) of the ecosystem-design review, built as a COMPOSER: it fork+execs the existing sovereign instruments (small sharp tools -> curated capability, per the mcp-coverage doctrine) and adds the two metrics no instrument carried (visibility violations = rung mom-29; validation depth = rung mom-22; base-change advisory = rung mom-3). Every metric row is DATA-DRIVEN (knowledge/registry/arch_policy.data: metric|role|weight| direction|target) and RATCHETED against a banked baseline (knowledge/registry/arch_baseline.data): improvements tighten the limit automatically, so erosion can never be silent -- limit = min(target, baseline) for `le` metrics, max for `ge`. Each row is attributed to the accountable ROLE (architect/ janitor/examiner/...), and the failing rows sorted by momentum-weight ARE the PM's ranked worklist. Composes (never rebuilds): nx_eco_graph_arch (cycles/propagation/fan-in) + nx_dup_detect (fused dup clusters) + nx_eco_rooted_set (islands) + nx_capability_placement (RACI placement violations). nx_arch_board gate -- adversarial self-test of the ratchet verdict nx_arch_board run <store-prefix> [core-dir] [organ-dir] -- judge; exit 0 GREEN / 1 RED nx_arch_board bank <store-prefix> [core-dir] [organ-dir] -- judge + bank baseline (refuses on any instrument failure -- never bank a broken measurement) license_tier: ORIGINAL module: nishi-core.architect.arch_board