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

The description does disclose that the body is discarded, and the schema indicates several parameters are discarded after shape checks. However, with no annotations present, the description carries the full burden of behavioral disclosure; it does not explain what 'hint' means, whether redirects are followed, how status codes are determined, or what happens for non-library URLs.

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 a single, front-loaded sentence with no wasted words. It states the primary action first and adds the body-discard trait efficiently, though it is arguably too sparse for a tool with seven parameters.

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 seven parameters, lack of an output schema, and absence of annotations, this one-sentence description is grossly incomplete. An agent cannot infer the full behavior, the purpose of the city/feed/json/path parameters, or the conditions under which this tool should be invoked.

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?

All parameters in the schema have descriptions, so schema coverage is high. The main description adds no parameter-level meaning beyond what the schema already provides, and it does not clarify how the various parameter types relate to the stated 'public library docs URL' 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 states a specific verb ('HTTP status') and a resource ('public library docs URL'), which provides a clear core intent. However, the input schema accepts seven diverse parameters (ref, url, city, feed, host, json, path), so the stated purpose is narrower than the actual tool scope and it does not distinguish this from sibling tools like fetch-status or web-fetch.

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 instead of similar alternatives. The description only states what the tool does, with no exclusions, prerequisites, or mention of alternative tools.

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