Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The tool has zero parameters, so the schema provides no parameter information. The description clarifies the return value is a URL to a markdown changelog, but since parameters don't exist, the description's value is in clarifying output semantics though it's not strictly parameter semantics. I'm considering the spirit: the description compensates for the lack of parameter schema by making the tool's purpose and output clear. However, the score aligns with the rule that 0 params yields a baseline of 4, and the description adds meaningful context beyond that.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.