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

No annotations are provided, so the description carries the full burden of behavioral disclosure. 'Short catalog' implies a read-only informational listing and suggests limited scope, but it does not state what happens when called, what input is used, or why most parameters are described as 'discarded'. The description gives only a weak implicit hint of no mutation.

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 extremely short, but this is under-specification rather than effective conciseness. It lacks an imperative subject and does not front-load an actionable verb. While every word is minimal, the description does not earn its place because it fails to convey required usage information.

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 parameters, no annotations, and no output schema, a one-line noun phrase is completely inadequate. The description does not explain why the parameters exist, which to provide, or what kind of catalog is returned. This leaves an agent unable to invoke the tool correctly beyond guessing.

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 coverage is 100% since all seven parameters have descriptions, so the baseline is 3. The main description adds no parameter meaning, and the schema descriptions describe inputs as 'discarded' or 'checked' without explaining how they relate to HTTP status codes. The descriptions exist but do not establish a clear semantic link to the tool's purpose.

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 essentially restates the tool name: 'Short catalog of common HTTP status codes.' It adds a vague qualifier but does not state an explicit action like 'returns' or 'lists', nor does it distinguish this catalog from sibling tools like fetch-status or compatibility. An agent cannot tell whether this is a static data object or a function to call.

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 in the sibling list. The description does not mention exclusions, prerequisites, or context. It is not misleading, but it provides no decision support for selecting this tool.

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