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

With no annotations, the description must carry behavioral information, but it only states that identifiers are not retained. It does not disclose whether the tool performs network calls, whether it is read-only, or what it does with the supplied values beyond a vague 'shape check' in parameter descriptions.

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 free of unnecessary wording. Both sentences add something: the basic purpose and a privacy guarantee. It could be more informative, but it is not bloated.

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 tool has nine optional parameters and no output schema, yet the description gives no indication of the result format, possible classification labels, or how to interpret the response. An agent cannot confidently decide to call this tool based on the available context.

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 nine parameters have individual descriptions, which meets baseline schema coverage, but those descriptions are inconsistent and do not clarify how the parameters are used for classification. Terms like 'discarded after the shape check' and 'public weather hint' are cryptic without a broader explanation.

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 says 'Show how this request is classified' but never defines what classification means, what categories are returned, or how the provided parameters relate to the classification. This leaves the tool's core purpose 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 about when to use this tool versus any of the many sibling tools, nor any condition or example indicating the appropriate input scenario. The description only repeats the purpose and a privacy note.

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