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

No annotations are present, so the description carries the full burden of explaining behavior. It only labels the tool as a 'short catalog' and does not state what happens when invoked, what output is returned, or whether the supplied parameters affect the result.

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 concise and front-loads the core subject in a single sentence. It does not waste words, though it is so terse that it skirts under-specification.

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?

With no annotations, no output schema, and four optional parameters that appear unrelated to HTTP status codes, the description is drastically incomplete. An agent has no basis for knowing what the tool does with the inputs or what a successful call looks 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?

Schema description coverage is 100%, so the schema already explains each parameter individually. However, the description adds no connection between these parameters and the catalog behavior, leaving the parameter usage confusing.

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 general resource ('catalog of common HTTP status codes'), but it is a noun phrase rather than an explicit verb-plus-resource statement. It does not say whether the tool returns, lists, or looks up codes, and it does not differentiate itself from siblings beyond the subject matter.

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 or how it compares to alternatives. The four optional input parameters (url, host, json, zone) are never mentioned in the description, so an agent cannot determine when or why to provide them.

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