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

There are no annotations to cover side effects or read-only behavior, so the description carries the full behavioral burden. 'Short catalog' vaguely suggests a read-only lookup but does not disclose what happens to the many accepted parameters or what the response contains.

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 very short and free of filler, which is good for conciseness. But 'Short catalog...' is more of a label than a structured explanation, and the meager content forces the agent to rely on the schema and name for meaning.

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 seven unrelated input parameters, no output schema, no annotations, and a one-line noun-phrase description, an agent cannot tell what input to provide or what a successful call returns. The description is minimally adequate for identifying the topic but not complete enough for reliable 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?

Input schema descriptions cover all seven parameters, so the schema already explains each parameter individually. However, the description does not connect these heterogeneous parameters (ref, url, city, feed, host, json, path) to the stated purpose of cataloging HTTP status codes, leaving their role unclear.

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 the domain ('HTTP status codes') and implies an informational catalog, but it lacks a verb such as 'returns' or 'lists', so it does not clearly state what operation the tool performs. It also does not differentiate from siblings like 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 status-catalog versus related tools such as fetch-status or web-fetch. The description provides no context, conditions, or exclusions that would help an agent choose this tool.

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