Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100% and the single 'path' parameter is fully documented in the schema, including pattern, length limits, and accepted forms. The description's examples ('/pricing', '/facts', '/docs/faq') largely restate what the schema already conveys, so this is baseline territory.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.