{"acceptance_criteria":["Output is a closed, non-manifold-free valid solid.","All chamfers are defined with consistent unit measurements relative to the origin."],"forge_execution_allowed":false,"limitations":["Cannot validate physical fit without external CAD software execution.","Does not simulate material deformation under load."],"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 the base solid with a clear origin and axis orientation.","Apply chamfer constraints using explicit units to edges or faces.","Verify manifold integrity before finalizing the geometry."],"required_inputs":["Base geometric shape definition","Target edge or face selection"],"round":1,"safe_knowledge_gate":"Theoretical understanding of coordinate systems and solid topology."}