Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema coverage is 100%, but the description adds meaningful constraints not in the schema: filename must contain only lowercase letters, digits, underscores, and hyphens, and must end in .md. It also provides examples. This enriches parameter understanding beyond the schema.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.