Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?
With 0% schema description coverage, the description must explain the parameter's meaning. It does convey that the 'operation' parameter selects which operation to fetch arguments for, and that omitting it yields a list of summaries. However, it doesn't specify the format or allowed values of the parameter (e.g., integer ID, string name), so the agent must infer this from context or trial.
Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.