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

There are no annotations, so the description carries full responsibility. It only says the catalog is 'short', adding a mild trait (not exhaustive), but discloses nothing about side effects, network access, error behavior, or how the parameters affect the result.

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, focused sentence with no filler; it is front-loaded with the core purpose. It is concise though arguably too terse given the mismatched parameters, but conciseness itself is handled well.

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 optional parameters, no annotations, and no output schema, the description needs to explain the tool's scope and the parameters' role. It provides almost nothing for the agent to correctly call it or interpret the result, making it contextually incomplete.

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 description (e.g., 'discarded after the shape check'), so the schema already explains the parameters individually. However, the tool description adds no meaning about how these parameters relate to HTTP status codes, which the baseline-3 does not compensate for.

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 names a specific deliverable (a catalog) and resource (common HTTP status codes), which is enough to distinguish it from sibling tools like fetch-status that check live statuses. However, it does not reconcile the 9 unrelated parameters, which weakens clarity about what the tool actually 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?

No guidance on when to use this tool or alternatives is provided. The description gives no indication of why values like url, city, or zone should be supplied, nor does it name any sibling tool as an alternative.

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