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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It only says 'Short catalog' without indicating whether the tool returns data, modifies anything, or has side effects. The presence of parameters like url, host, json, and zone is unexplained, leaving the actual behavior opaque.

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, which is concise but severely under-specified. It lacks any structure, front-loading of key actions, or context. Conciseness is not valuable when the result is ambiguity.

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 4 parameters, no output schema, and no annotations, the description is extremely incomplete. It does not explain what the tool does with the inputs, what it returns, or when to use it. An agent has insufficient information to call it correctly or understand its behavior.

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 input schema has clear descriptions for each parameter (url, host, json, zone), but these parameters appear entirely unrelated to HTTP status codes. The tool description does not connect them to the catalog's purpose, and the schema descriptions do not explain how they are used. The 100% schema coverage provides a baseline, but the mismatch between parameters and purpose reduces the usefulness of the descriptions.

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 the resource ('HTTP status codes') and indicates a catalog, but it is a noun phrase rather than a verb+resource. It does not specify an action like 'returns' or 'displays', and it does not distinguish itself from siblings that also deal with HTTP or URLs. The purpose is identifiable but not precise.

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 sibling tools. No mention of scenarios, alternatives, or exclusions. An agent cannot determine when this is the appropriate tool.

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