Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The description mentions 'by key', which gives contextual meaning to the single 'key' parameter in the schema. Since schema description coverage is 0%, some compensation is needed, and this does partially explain the key's role. However, it does not elaborate on the key's format or behavior, so it stops at a minimum viable level.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.