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

With no annotations present, the description carries the full burden of disclosing behavior, but it offers none. It does not state whether the tool is read-only, whether it performs HTTP requests, what it returns, or any side effects. The string 'short catalog' is insufficient for an agent to understand the tool's operational 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 short but this is under-specification rather than polished conciseness. It provides almost no information, and every additional meaningful element is missing. It is not front-loaded with useful guidance; it simply contains a single noun phrase.

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?

Given nine optional parameters, no annotations, no output schema, and no behavioral description, this description is far from complete. An agent cannot determine what inputs to use, what the tool returns, or how to invoke it correctly. The single phrase leaves nearly everything unspecified.

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%, so the input schema already documents all nine parameters. The description itself adds no parameter-level meaning and does not explain how parameters like url, city, or json relate to the HTTP status code catalog, but the baseline for high schema coverage keeps this at 3.

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 merely restates the tool name: 'status-catalog' becomes 'short catalog of common HTTP status codes'. It names a noun rather than a function and gives no verb or operation an agent can act on, making it a tautology rather than a clear purpose statement.

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 instead of siblings like fetch-status, web-fetch, or browser-url-ok. The description does not state when to invoke it, what problem it solves, or what conditions should trigger its use.

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