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

The statement 'No identifiers are retained' gives a hint about privacy, but there is no mention of side effects, permissions, or any other behavioral aspects. With no annotations, the description leaves most behavioral expectations undisclosed.

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, but its brevity comes at the expense of clarity. It is not verbose, yet it fails to convey essential information. The structure is acceptable but the content is insufficient.

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?

There is no output schema or explanation of what the classification result looks like. The description omits any details about return values, success/failure conditions, or examples, leaving the tool's behavior largely undefined.

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 schema lists parameters with generic descriptions (e.g., 'HTTPS URL to normalize or cite') that are not specific to this tool's purpose. The description does not clarify how url, host, json, or zone are used in classification, so parameter semantics are unclear.

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 'Show how this request is classified' is vague and does not specify what kind of classification is performed, nor does it distinguish the tool from siblings like normalize-url or validate-json. The resource and action are unclear.

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 provided on when to use this tool versus any alternative. There is no mention of scenarios, prerequisites, or exclusions.

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