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

No annotations are present, so the description carries the full burden of behavioral disclosure. The description only states 'Short catalog of common HTTP status codes.' and does not reveal what the tool does with its nine inputs, what it returns, or any side effects, even though parameter descriptions hint at discarded values.

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 wasted words, so it is concise and easy to parse. However, it is so minimal that it sacrifices substance, though conciseness itself is well achieved.

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 nine parameters, no annotations, and no output schema, a one-line noun phrase is severely incomplete. The description does not explain how the parameters relate to the catalog, what the tool produces, or when to call it, leaving major gaps for an agent.

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 includes nine properties, each with a description, providing 100% coverage of parameter semantics. The description adds nothing extra, but with full schema coverage the baseline of 3 is appropriate.

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 identifies the resource as 'common HTTP status codes' and implies a catalog, so an agent can guess it provides a list. However, it lacks an explicit verb like 'returns' or 'lists', making the action vague. It does not distinguish itself from similar siblings 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?

The description gives no guidance on when to use this tool versus alternatives. It does not mention exclusions, prerequisites, or comparison to any sibling tool, leaving the agent without direction.

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