Compile one caller-selected domain-solutioning candidate into a prepared bounded beam simulation study after repeating deterministic engineering review. The requirement must explicitly state the supported load model, geometry, load, and elastic modulus; the caller must state the objective, source freshness, and physical validation plan. Optional material_property_evidence content-addresses an exact engineering datasheet or measurement with material state, applicability, method, and uncertainty; its value must match the requirement. Semantic placeholders such as unknown, unspecified, n/a, or tbd cannot make material state or applicability simulation-eligible. Computed-crystal evidence remains screening/reference-only because this scalar product model cannot preserve its tensor, orientation, grade, condition, or product-form boundary. Requester limits become hard constraints. It never verifies a source claim, selects a candidate, invents physics, runs a solver, stores data, contacts a supplier, or grants physical authority.