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

No annotations are provided, so the description carries the behavioral disclosure burden. It implies a read-only reference through the word 'catalog,' but it does not disclose side effects, return values, possible network behavior, or the fact that inputs are described in the schema as discarded or validated. It under-discloses without being misleading.

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 one short sentence with no filler, so it is concise in phrasing. However, it is too terse to be appropriately sized for a tool with seven heterogeneous parameters and no explicit operation; it sacrifices necessary substance for brevity.

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 seven diverse inputs and no output schema, the description is dramatically incomplete. An agent cannot tell whether this is a lookup, a validator, a router, or a network operation, nor can it connect the 'catalog' concept to the parameter descriptions. The definition does not provide enough context for correct invocation.

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 provides detailed descriptions for all seven parameters, so schema coverage is high and the baseline is 3. The description itself adds no meaning to these parameters and does not explain how parameters like 'city' or 'feed' relate to a catalog of HTTP status codes, but the schema-level descriptions prevent this dimension from failing.

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 almost restates the name: 'status-catalog' becomes 'catalog of common HTTP status codes.' It never states what action the tool performs, what it returns, or how it relates to its seven heterogeneous inputs. It does not distinguish the tool from siblings such as fetch-status or web-fetch.

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 alternatives. The phrase 'short catalog' is the only context hint, but it does not say what inputs are appropriate, what output to expect, or when to choose a sibling tool like fetch-status or normalize-url.

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