Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema covers all 5 parameters with descriptions, but the tool description adds the key constraint that length/width/height must be provided together, explains the interpretation of absent parameters (e.g., no params returns rate table), and reveals the 30cm minimum dimension rule used in the formula.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.