Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The description adds minimal meaning beyond the input schema: it clarifies that 'milestoneId' identifies 'a specific milestone', but schema description coverage is 0%, and it doesn't explain format, sourcing, or constraints. With only one parameter, the baseline is 4, but the description fails to compensate for the lack of schema documentation, so it scores lower.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.