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

There are no annotations, so the description carries the full behavioral disclosure burden. It only labels the tool as a catalog and does not explain whether it returns a complete list, filters by an input, performs validation, or has any side effects.

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 the single sentence is under-specified rather than effectively concise. It mostly restates the tool name, and the word 'Short' adds no operational value for an agent.

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 nine optional parameters, no output schema, no annotations, and 27 sibling tools, this description is far too thin. The agent cannot determine which of the unrelated parameters—url, city, json, path, zone, query, etc.—matter or what the response will look like.

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 baseline is 3. The tool description itself adds no parameter-level meaning, but each parameter already has a descriptive comment in the schema, so the description does not need to compensate.

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 is a noun phrase that mostly restates the tool name: 'status-catalog' becomes 'catalog of common HTTP status codes.' It does not state a clear action and gives no indication of how the nine optional parameters are meant to be used.

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 is provided about when to use this tool versus siblings such as fetch-status or normalize-url. With no required parameters and nine optional ones, an agent has no clue what input, if any, should be supplied to retrieve the catalog.

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