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

No annotations are present, so the description carries the full burden of behavioral disclosure. It suggests a read-only reference catalog but says nothing about side effects, return values, or how inputs affect the output. The schema's 'discarded' notes hint at no-op inputs, but the description itself does not disclose this behavior.

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 with no fluff, but it is under-specified rather than economically complete. It earns a middling score because it is concise yet omits critical operational detail.

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?

For a tool with no annotations, no output schema, seven parameters, and sibling tools with overlapping HTTP-related functions, this description is not close to sufficient. An agent cannot determine what input to provide, what output to expect, or when this catalog is the right choice.

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 seven parameters have schema descriptions, which sets the baseline at 3. However, the parameter descriptions describe generic discard/normalize/validate semantics that are not tied to an HTTP status catalog and no parameter identifies a status code to look up; the tool description adds no additional parameter meaning.

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 identifies the resource as a short catalog of common HTTP status codes, so an agent can grasp the domain and approximate function. However, it is a noun phrase with no action verb, and it does not specify how to query the catalog or distinguish it from fetch-status or compatibility. It is clearer than a pure tautology but still vague about what the tool actually returns or does.

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 rather than sibling tools such as fetch-status, compatibility, or domain-shape. The description merely states what the catalog contains and leaves all selection context implicit. No exclusions or alternative conditions are provided.

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