Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The tool has zero parameters, so the empty schema means 100% coverage. Per the rubric, 0 params earns a baseline of 4. The description adds no parameter-specific meaning, but since there are no parameters, it doesn't need to. The description clarifies the target scope ('SSL private keys'), which is the only relevant semantic context.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.