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

With no annotations, the description carries the full burden of explaining side effects, return behavior, and operational details, but it only says 'catalog.' It does not disclose whether the tool performs network requests, reads files, or returns a static list, nor does it explain why the schema includes nine unrelated-looking parameters. The schema's 'discarded after...' notes hint at transient behavior, but the description itself does not clarify this.

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 very short and contains no filler, so it is concise. However, the brevity results in under-specification: essential usage and behavior details are absent. It is not as minimal as a bare tautology, but it sacrifices completeness for compactness.

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 exposes nine optional parameters, has no output schema, and has no annotations, so the description needs to explain how inputs are used and what the caller receives. It does neither. An agent can guess the general purpose but cannot confidently determine which parameters are relevant to the catalog or what the return value will look like.

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% description coverage for all nine parameters, so the schema already provides clear meaning for each field. The tool description adds no parameter-level insight and does not connect the parameters to the catalog behavior. A baseline of 3 is appropriate because the schema descriptions are individually adequate, even if they seem mismatched with the tool's stated purpose.

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 identifies the tool as a short catalog of common HTTP status codes, naming the specific resource and content type. It goes beyond the bare tool name and is reasonably distinct from sibling network tools like fetch-status, though it lacks an explicit action verb.

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 on when to use this tool versus alternatives such as fetch-status, web-fetch, or browser-url-ok. The description does not state whether it is for status-code lookups, URL status checks, or general debugging. An agent must infer the intended context solely from the name.

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