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

With no annotations, the description must carry the behavioral burden, but it only states that identifiers are not retained. It does not disclose whether the tool makes external calls, whether it is read-only, what authorization it needs, or what side effects (if any) exist.

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 only two short sentences and the privacy caveat is useful and front-loaded. However, it is concise at the expense of substance; it has no wasted words, but it omits key operational detail.

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?

This is a nine-parameter tool with no required fields and no output schema, yet the description does not explain what result is returned, how the classification is expressed, or how to choose which parameter to populate. The rich per-parameter schema helps, but the overall invocation contract is too incomplete.

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 coverage is 100%, so the schema already documents each of the nine optional parameters. The tool description adds only the general privacy note and does not clarify that the parameters appear to be mutually exclusive alternatives, so it does not improve on the baseline.

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 verb and object ('Show how this request is classified'), so it is not a tautology, but it never states what 'classified' means or what kind of output the agent should expect. It does not position the tool against any of the many sibling validators, leaving the operation ambiguous.

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 choose compatibility over sibling tools such as validate-json, file-path-ok, normalize-url, or domain-shape, and no mention of the implied one-parameter-per-request pattern. The description gives no context, constraints, or exclusions.

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