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 disclosing behavior. It says only 'Short catalog of common HTTP status codes' and is silent on side effects, read-only status, discard behavior, or whether inputs are actually used.

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 concise, but this is under-specification rather than good concision. For a tool with seven distinct parameters and ambiguous purpose, one vague noun phrase is not appropriately sized.

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 no output schema, no annotations, and no explanation of how the parameters relate to the catalog, the description is far too incomplete for an agent to invoke the tool correctly. It does not say what the tool returns or whether the inputs affect the output.

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 already gives each of the seven parameters a description, including notes like 'discarded after the shape check' and 'no disk access,' so schema coverage is high. The tool description adds no parameter-level meaning or connection between the parameters and the catalog claim.

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 reads as 'Short catalog of common HTTP status codes,' which is a noun phrase and mostly restates the tool name rather than specifying a verb and resource. It gives no hint about what the call does with the seven heterogeneous inputs or what the agent should expect back.

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, when not to use it, or how it differs from sibling tools such as fetch-status or web-fetch. The agent is left to infer the intended context from the tool name and sparse description.

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