{"acceptance_criteria":["Output contains no non-manifold edges or self-intersecting surfaces.","All geometric features have valid, consistent normal directions."],"forge_execution_allowed":false,"limitations":["Cannot validate physical fit without CAD software simulation.","Does not account for material deformation or manufacturing tolerances."],"principles":["Use explicit units, origins, axes and coordinate systems.","Prefer constrained construction geometry for functional features.","Maintain closed, valid solids for manufacturing."],"repeatable_method_steps":["Define a global origin with labeled X/Y/Z axes in consistent units.","Construct feature boundaries using explicit constraints relative to the defined system.","Verify solid closure and manifold integrity before finalizing geometry."],"required_inputs":["Defined coordinate system parameters (origin and axes)","Explicit unit specification for all dimensions"],"round":1,"safe_knowledge_gate":"Theoretical understanding of solid geometry constraints"}