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

No annotations are provided, so the description must carry the full behavioral burden. It only discloses 'No identifiers are retained,' which is a privacy note, but nothing about what the tool does with inputs, what it returns, whether it is read-only, or any side effects. This is inadequate for a tool with 9 input types.

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 (two sentences) but under-specified rather than concise. The only concrete detail is the privacy note; the rest is vague and unstructured, offering no front-loaded actionable info.

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 9 heterogeneous parameters, no output schema, no annotations, and a vague description, the tool is severely incomplete. An agent cannot infer expected output, when to call it, or how to interpret results.

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%, and each parameter has a specific description (e.g., 'discarded after the shape check'). The tool description adds no parameter semantics beyond the schema, so the baseline of 3 applies.

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 vague action ('Show how this request is classified') without identifying a clear resource or what 'classified' means. It does not differentiate from sibling tools like domain-shape or validate-json, and the purpose is open to interpretation.

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 alternatives. No scenarios, no exclusions, no hints about which sibling tools are more appropriate for specific cases. An agent has no basis to select this tool.

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