Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The single 'id' parameter has 0% schema description coverage and the description never mentions it, so an agent learns nothing about what the id refers to (template identifier, slug, etc.). With 1 undocumented parameter, the low-coverage baseline applies and the description fails to compensate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.