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. It does not say whether the tool is read-only, what it returns, how it handles inputs (despite schema notes that several are discarded), or whether there are side effects. Behavior is completely opaque.

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 text is short and front-loaded, but it is under-specified rather than concise. A single noun phrase provides no actionable content and does not earn its place as the tool definition.

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?

For a tool with seven mostly unrelated parameters and no output schema, one vague sentence is entirely inadequate. The agent cannot determine which parameter to provide, what the tool will do with it, or what response to expect.

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 seven parameters have individual schema descriptions, so schema coverage is high and the baseline is 3. The tool description adds no meaning about how these parameters relate to the status-code catalog or which parameter should be supplied.

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 lacks an action verb, does not state what invoking the tool produces, and does not distinguish it from sibling tools such as fetch-status.

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 about when to use this tool, what inputs are appropriate, or how it compares to alternatives. With many sibling tools covering similar domains, an agent receives no routing information.

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