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

No annotations are provided, so the description must carry all behavioral disclosure. It only states 'Body discarded' and that an HTTP status is returned; it does not say whether the tool makes a real network call, whether auth is required, or what the status response looks like, leaving the safety and side-effect profile unclear.

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 short and the 'body discarded' note is front-loaded. Its brevity, however, is an symptom of under-specification rather than refined concision because it omits the tool's actual multi-parameter scope.

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 output schema is absent, annotations are absent, and there are 9 optional parameters, so the description must compensate significantly. It only covers the URL/HTTP-status case and says nothing about the other parameter categories, leaving the tool inadequate for an agent to invoke correctly.

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 description adds no parameter meaning beyond the schema, which already has 100% coverage per parameter. However, by mentioning only 'public library docs URL,' it would likely mislead an agent into choosing only the url field, ignoring the other eight valid parameters and their distinct discard behaviors.

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 names a specific action (HTTP status for a public library docs URL) and mentions the body is discarded, but it aligns with only one of the nine schema parameters. The other eight parameters (city, zone, json, query, etc.) are unaddressed, making the actual tool purpose ambiguous and misleading.

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 at all about when this tool should be used instead of its siblings such as fetch-status, browser-url-ok, normalize-url, or validate-json. An agent receives no routing hints, prerequisites, or exclusions to select it correctly.

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