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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It says only that the tool contains a catalog; it does not disclose whether it returns data, performs lookups, has side effects, or how it behaves with input.

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 brevity here is under-specification rather than concision. It omits critical information such as what action the tool performs, what inputs it accepts relevant to status codes, and what output it produces.

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 large set of sibling tools and the absence of annotations and output schema, the description is insufficiently complete. An agent would be unsure what arguments to provide, what the catalog contains, and how this differs from adjacent tools.

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 seven described parameters, so baseline coverage is high, but the parameter semantics are inconsistent with a status-code catalog: 'city' is for a weather hint, 'feed' suggests RSS, and 'path' is for file checks. The description adds no explanation of which parameters matter or how they relate to HTTP status codes.

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 essentially a noun phrase restating the tool name: 'Short catalog of common HTTP status codes.' It does not state an actionable verb or clarify whether the tool lists, explains, or validates status codes. It also lacks any distinction 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 on when to use this tool versus alternatives such as fetch-status, web-fetch, or normalize-url. The description provides an implied subject matter but no context, conditions, exclusions, or alternatives.

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