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

The description and parameter details disclose positive behavioral facts: no identifiers are retained, inputs are discarded after checks, and path checking does no disk access. However, it does not mention side effects, external calls, error behavior, or whether the tool is strictly read-only.

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 very short and front-loaded, with no redundant text. The single sentence earns its place, though the brevity does sacrifice useful context.

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 and no explanation of what the classification result looks like, what categories exist, or how the inputs are evaluated. For a tool with nine parameters, the description is far too incomplete for an agent to use reliably.

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 descriptions, so schema coverage is complete. The descriptions mostly emphasize disposal behavior rather than how each value contributes to classification, but they do provide basic semantic labels like 'Git ref name' and 'HTTPS URL to normalize or cite.'

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 'this request' is or what classification means. With nine heterogeneous parameters and no output schema, the actual purpose remains 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 use this tool versus the many sibling tools such as normalize-url, validate-json, domain-shape, or fetch-status. The description does not explain conditions, prerequisites, or alternatives.

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