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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It only says the tool is a 'short catalog', implying a read-only reference, but it does not state whether parameters are ignored, what output format is returned, or why nine unrelated-looking parameters exist. This is a meaningful gap.

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 concise sentence with no filler. It is front-loaded and easy to parse. It is slightly under-specified, but as a concise summary it is efficient.

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?

Despite the tool having 9 parameters, no annotations, and no output schema, the description provides almost no context about invocation, return value, or what inputs matter. A one-line noun phrase is insufficient for an agent to confidently call this tool, especially given the confusing parameter names and descriptions.

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%, so the baseline is 3 even though the description adds no parameter information. However, the parameter descriptions in the schema are odd and mostly describe discarding or unrelated actions, which does not help an agent understand how to query the catalog. Still, the description itself does not need to repeat schema-covered details.

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 identifies the resource (HTTP status codes) and the general nature of the tool (a catalog/reference). It lacks an explicit verb such as 'returns' or 'looks up', but the meaning is not vague or tautological. It does not explicitly distinguish itself from siblings like fetch-status, but the intent is reasonably clear.

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 gives no guidance on when to use this tool versus alternatives. It does not mention any precondition, use case, or sibling tool to prefer instead. An agent must infer when a 'catalog of common HTTP status codes' would be relevant.

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