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

Annotations declare readOnlyHint=false and idempotentHint=false, yet the description's verb 'check' reads like a pure read and says nothing about side effects, what state is created or consumed, auth requirements, or why the operation is non-idempotent. This is a notable disclosure gap for a write-classified tool with no output schema; the description adds essentially nothing beyond the annotations.

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?

One short sentence with no padding, so it is efficient on its face. However, at this length the sentence omits almost everything an agent needs, so its brevity reflects under-specification as much as conciseness.

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 tool with a free-form opaque request body, no output schema, and annotations indicating a non-read-only, non-idempotent operation, the definition supplies almost no behavioral or contractual context. The agent must leave the tool definition entirely to consult the external schema resource.

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 description coverage is 100% (one parameter), so the baseline is 3. The single 'body' parameter is described only as a JSON request body pointing at an external OpenAPI contract, so the description contributes no additional meaning, but it also does not need to compensate for an uncovered parameter.

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?

It states a verb and a resource ('check content age eligibility'), so the general intent is decipherable, but 'content age eligibility' is vague and the description makes no attempt to distinguish this tool from adjacent siblings such as age_check, shelf_catalogue, or the other *_check tools. An agent cannot confidently tell whether this validates a Shelf pass, a piece of content, or a caller.

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?

There is no when-to-use guidance, no prerequisites, and no mention of alternatives among the large sibling set. The only hint about usage lives in the schema, which points to an external OpenAPI contract rather than telling the agent when this tool is the right call.

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