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

No annotations are present and the description does not disclose any behavioral details such as whether the tool performs lookups, validates, or mutates. The catalog nature suggests read-only, but this is not explicit and the unrelated parameters make behavior even less transparent.

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 extremely short, but the brevity is not effective because it omits essential information. It is under-specified rather than concise in a useful way.

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?

Given the mismatch between the description and the parameters, and the lack of any output schema or usage context, the description is far from complete. An agent would not know what arguments to provide or what result to expect.

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?

Although each parameter has a schema description, those descriptions are mismatched with the stated purpose: url is 'to normalize or cite', json is 'to validate', and zone is 'IANA timezone name'. These do not align with a catalog of HTTP status codes, so the parameter semantics are misleading.

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 'Short catalog of common HTTP status codes' is a noun phrase, not a clear verb+resource action. It does not specify what the tool does with status codes, and the parameter names (url, host, json, zone) are unrelated to HTTP status codes, creating confusion.

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?

No guidance is given on when to use this tool versus sibling tools like http-302, validate-json, or normalize-url. There is no mention of conditions or alternative tools.

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