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

The phrase 'No identifiers are retained' provides a useful privacy guarantee, but the description does not disclose what output the classification produces or what side effects or expectations exist. With no annotations present, this is too thin to fully characterize behavior.

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 two short sentences with no filler. The main action is front-loaded, and the privacy note is relevant and concise.

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?

With seven parameters, no output schema, and no annotations, the description is far too incomplete. It does not explain what classification output to expect, how to interpret it, or how this tool relates to the sibling validation tools, making it difficult for an agent to call 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?

Each parameter already has a schema description, so schema coverage is high and the description does not need to re-document parameters. The description adds no cross-parameter or classification-specific meaning, so the baseline score of 3 is appropriate.

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 action ('Show how this request is classified') but never defines what classification means or what categories are used. It does not distinguish this tool from the many sibling shape-check tools, so the purpose remains somewhat vague.

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 for when to use this tool versus alternatives. There are no exclusions, prerequisites, or references to sibling tools, so the agent is left without a basis for selection.

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