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