Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
The schema coverage is 0%, so the description must explain the 'plan' parameter. It describes it as a 'scenario plan' and mentions 'bounded' and 'cleanup evidence', but does not define the expected structure, allowed fields, or constraints. The schema has additionalProperties: true, offering no guidance, and the description fails to compensate.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.