Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The input schema has zero parameters, so the description must clarify the tool's operation, but it doesn't. The phrase 'Enable or disable' implies a choice that no parameter can express, leaving ambiguous whether the tool toggles the current state or requires some external context. The empty schema baseline is 4, but the misleading implication drops the score.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.