ncloud_get_nas_volume_rating_list

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnlyHint=true, so the description does not need to restate safety. The description adds the time-period scoping constraint but does not disclose other behavioral traits like response format or units. With annotation coverage, this is adequate but not rich.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single sentence that is entirely front-loaded and contains no wasted words. It conveys the essential purpose without filler.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a simple read-only list tool with fully documented parameters, the description is adequate. The absence of an output schema is not a major issue since the tool returns a list of measurements, though return value details (e.g., units) are not described. Overall, it is sufficiently complete given the annotations and schema.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 100%, so the schema already documents all four parameters with descriptions. The description's reference to 'specific time period' loosely maps to startTime/endTime but adds no new meaning beyond the schema. Baseline 3 applies.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description states the tool gets a NAS volume size measurement list for a specific time period, which is a specific verb+resource+scope. It clearly distinguishes from sibling tools like list_nas_volumes (lists volumes) and get_nas_volume_detail (volume details).

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies usage: when you need NAS volume size measurements over a time period. However, it does not explicitly mention alternatives or exclusions, leaving the agent to infer from the tool name and context signals.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.