Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
Schema description coverage is 100%, with all 5 parameters already documented (id, limit, cursor, detail, max_tokens). The description adds nothing about parameters. Baseline 3 is appropriate when schema does the heavy lifting, but the description misses the chance to clarify that 'id' is a space ID – the cryptic 'id=space.' hint is less clear than the schema itself.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.