Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
There is one parameter (langue, enum fr/en, default fr) with 0% schema description coverage, so the description carries the full burden — yet it never mentions language, localization, or which language output is returned. A user relying only on the description would not know the tool is localizable at all.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.