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

With no annotations and no description of side effects, read-only status, or error behavior, the tool's runtime behavior is opaque. The mismatched parameter descriptions further obscure what the tool actually does.

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 and is not verbose. However, it is too sparse to convey essential information and provides no structured breakdown of behavior or usage.

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 description lacks sufficient context for an agent to understand input/output expectations, relationship to the stated purpose, or why the four unrelated parameters exist. It is incomplete for practical use.

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?

Although parameter descriptions are present, they are unrelated to HTTP status codes (e.g., URL normalization, hostname, JSON validation, timezone). These descriptions actively confuse rather than clarify how the parameters serve the stated catalog 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 states it is a 'short catalog of common HTTP status codes', but it lacks a clear verb or action and does not explain how the provided parameters relate to the catalog. The purpose is ambiguous and not actionable.

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 given on when to use this tool versus the sibling tools. There is no mention of alternatives, conditions, or context in which this catalog should be preferred.

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