# Exact unsent Grok prompt — EM-FAC-02

Independent enterprise metamodel review. Do not browse, invent identifiers or claim publication readiness.

EM-FAC-02 covers ImpactBoundary, ActivityData, EmissionFactor, ImpactCalculation and SustainabilityDisclosure. Complete adjacent drafts cover WM-ECO-034 Sustainability Disclosure, WM-MAT-008 Observation, WM-FLW-015 Resource Consumption, WM-DAT-001 Dataset, organization and relationship masters, physical items and policy/rules.

Assess this proposal: reuse WM-ECO-034 for disclosure; profile Activity Data on consumption/observation masters; create identifier-unassigned Inventory Boundary, Emission Factor Registry and Environmental Impact Calculation Run roots. Keep results run-contained and factor versions set-contained. Allocate no other identifier.

Separate disclosure from boundary, activity, factor, calculation, assurance and filing; organizational from operational and value-chain boundaries; control from equity approaches; location- from market-based methods; measured from estimated and spend-proxy values; impact quantity from financial cost. Pin methods, factor source/version, units, conversions, uncertainty, coverage, allocation, exclusions, recalculation policy and evidence.

Test two methods plus a boundary change that produce explainable, non-comparable results without silent restatement. Reject cloud spend as exact measured emissions. Preserve valid supplier Scope 1 and buyer Scope 3 inventories without cross-counterparty netting.

Return <=900 words with: Verdict; strongest evidence; strongest counterexample; identity/mastership; disclosure/boundary; activity data; factor registry; calculation/result; units/method/uncertainty; double counting/allocation; time/version/recalculation; assurance/publication; scenario; at least 10 invariants; minimum model set; blockers. Explicitly decide which candidates need independent roots.