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

With no annotations, the description carries the full burden of behavioral disclosure. It only labels the content as a 'short' catalog and never explains what happens with the supplied inputs, whether they filter the catalog, or what the output looks like. This is far too little for a tool with seven parameters.

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 short sentence with no filler, so it is concise in form. However, it is under-specified for a tool with seven heterogeneous parameters and no annotations or output schema. This brevity is a gap in specification rather than an example of effective 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?

The tool has no annotations and no output schema, so the description is the sole source of contextual information. It fails to mention the output format, how the parameters affect results, or any invocation constraints. This is completely inadequate for a multi-parameter tool.

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?

Every parameter has a description in the input schema, so schema description coverage is high and the baseline is 3. The tool description adds no parameter-level meaning and does not clarify how the parameters like ref, url, city, and path relate to the catalog. Since the schema already documents each parameter individually, no further penalty is applied.

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 is a noun phrase that essentially restates the tool name: 'Short catalog of common HTTP status codes' is another way of saying 'status-catalog'. It names the resource but lacks a verb that tells an agent what operation the tool performs or what it returns. It also does not differentiate the tool from sibling tools like fetch-status.

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 guidance about when to use this tool versus alternatives. The description does not mention fetch-status, validate-json, or any other sibling, nor does it state the conditions under which status-catalog should be selected. With seven heterogeneous input parameters and no usage context, an agent cannot infer appropriate invocation.

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