11 — GPT MCP-Readable Checkpoint (in-package copy)

See the standalone short proof at knowledge/dev/reports/architecture/checkpoint-rp-parent-graph-commit-2026-06-03.md.

Final status: PASS Live mutation: YES — 13 parent_code edges committed. Parent graph commit: YES. Before/after tree: 37 roots / 0 parents / 0 children → 24 roots / 6 parents / 13 children. Validation: dangling 0 · cycle 0 · inactive-parent 0 · self-edge 0. Backend contract: v_registries_pivot_node_contract hierarchical live (has_children=6), zero view change. Count side-effect: bounded + documented — 1 stale cache value (PIV-201 entities +3); 0 meta_catalog / 0 L1-total / 0 business-table change. PIVOT_MISSING: PIV-311/313 READY_TO_ADD (rehearsed, owner-gated bundle); PIV-301/302/303/312/304/500 = CANDIDATE/NEEDS_LAW_DEFINITION; engine extension NOT needed (engine supports view sources). Count integrity: honest — equation unverifiable-at-grand-total; orphan 59 / phantom 289 CANDIDATE; PIV-104 drill gap Σ16≠309 flagged. UI handoff: complete — one view, no recompute, no view change. Done-enough: YES — RP graph live, backend-resolved; safe to return to information work. Remaining blocker: owner ratification of aggregate pivots + law defs (not engineering). Next macro: REGISTRIES_PIVOT_AGGREGATE_PIVOTS_RATIFY_AND_ADD.