ncloud_apigw_get_usage_plan

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

The annotations already declare readOnlyHint=true, so the agent knows this is a safe read operation. The description adds no additional behavioral context such as authentication needs, rate limits, or side effects. For a tool with annotations, the description should complement them, but here it merely restates the action.

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, front-loaded sentence of 11 words. Every word contributes meaning, and there is no wasted text. It is appropriately concise.

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?

The description mentions 'details and API usage statistics' but does not specify what the response contains. With no output schema, the description should provide more completeness about the return value. For a simple read tool, this is adequate but not thorough.

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?

The input schema has 100% coverage, with a description for the sole parameter 'usagePlanId'. The description adds no further meaning beyond the schema's 'Usage plan ID to query'. Baseline 3 is appropriate since the schema already documents the parameter adequately.

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 clearly states the action ('get') and the resource ('usage plan details and API usage statistics'), making the purpose evident. However, it does not explicitly differentiate from sibling tools like 'ncloud_apigw_get_product', though the resource type is different.

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?

No guidance is provided on when to use this tool versus alternatives. For example, it does not mention that this retrieves a specific usage plan by ID, while a hypothetical list tool would be needed for browsing. Sibling tools include other API Gateway operations, but no comparative context is given.

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