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

Parameter descriptions mention values being 'discarded' but do not explain the tool's actual behavior, output, or side effects. With no output schema or annotations, an agent cannot predict what the tool will do.

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 a single short sentence with no unnecessary wording. The schema descriptions are also compact, though the nine unrelated optional parameters add noise.

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?

The tool lacks an output schema, examples, return-value notes, edge cases, or usage context. This is insufficient for an agent to know how to successfully call a 'catalog' tool with nine optional parameters.

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?

All parameters have schema descriptions, many noting they are discarded, which gives some semantic clarity. However, the parameters appear unrelated to an HTTP status catalog and the description does not connect them 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?

Description is a noun phrase rather than an action: 'Short catalog of common HTTP status codes.' It does not state what the tool actually does, returns, or how it should be invoked.

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 like fetch-status or web-fetch. There is no selection criteria, condition, or example of appropriate use.

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