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

With no annotations, the description must disclose behavioral traits itself. It only adds a privacy note ('No identifiers are retained') and implies no disk access in the path parameter, but does not state whether the tool is read-only, what side effects occur, or what the response contains. This is a significant gap for a tool that could be invoked with multiple types of inputs.

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 a single short sentence plus a privacy clause. It is efficient with no wasted words. However, the brevity contributes to under-specification rather than purposeful conciseness – it is short but not informative enough, so the structure is acceptable but not exemplary.

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 tool accepts 9 optional parameters covering diverse domains (URLs, file paths, JSON, timezones, queries) yet has no output schema and no explanation of the classification result. An agent cannot infer what the tool returns or how to interpret the classification. The description is incomplete for a tool of this complexity.

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 description coverage is 100% – every parameter has an individual description, so the schema carries the semantic load. The description itself adds no parameter-level meaning beyond the schema. Baseline 3 applies because the description does not introduce confusion, but it also provides no additional context about how parameters are used together.

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 generic verb ('show') and a resource ('how this request is classified'), but 'classified' is vague – no categories, output format, or intended use are specified. It does not differentiate from sibling tools like browser-url-ok or file-path-ok, which clearly check specific resource types. This is more than a tautology but falls short of a clear purpose.

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 use this tool versus the many sibling checkers. No conditions, prerequisites, or alternatives are mentioned. The description implies a classification function but never states when an agent should prefer this over a more specific sibling tool.

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