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

No annotations are present, so the description must describe behavior on its own. 'Short catalog' implies a read-only lookup, but the description doesn't disclose what the tool returns, whether it uses the input parameters, or that several parameters are discarded. The schema hints at shape checks, but the description leaves this opaque.

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 brief and contains no filler, which is good, but it is under-specified for a tool with a non-trivial schema. It's concise to the point of being vague rather than efficiently informative.

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 is insufficient for an agent to confidently call this tool. It doesn't explain how the catalog relates to the eight optional parameters, what output to expect, or how this differs from other status-related tools. No output schema or annotations compensate for the missing context.

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 already provides descriptions for all parameters, so schema coverage is high. The description adds no meaningful parameter-level context, and the relationship between 'HTTP status codes catalog' and parameters like city, feed, or path is not explained.

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 catalog of HTTP status codes, giving it a recognizable subject matter, but it uses a noun phrase rather than a specific verb+resource action. It doesn't differentiate from siblings like fetch-status or web-fetch, so an agent cannot tell whether this lists codes or looks one up.

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 the many sibling tools (fetch-status, browser-url-ok, web-fetch, etc.). No conditions, exclusions, or alternative tool references are provided.

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