Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is only 50% (context documented, slug not). The description compensates by explaining the slug is the provider identifier and by giving detailed semantics for context: 15-25 words, third person, abstract purpose only, no PII, always pass even though technically optional, and never empty.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.