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

With no annotations provided, the description bears full responsibility for disclosing behavior. It does not state whether the tool is read-only, has side effects, requires permissions, or returns data. The lack of any behavioral transparency is a significant gap.

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 concise sentence that directly states the resource and scope. There is no redundant or extraneous information, and the structure is clean and easily parsed.

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?

Given the tool has four parameters and no output schema, the description is severely incomplete. It does not explain what the parameters do, what the tool returns, or any edge cases. An agent cannot confidently invoke this tool based on the provided information.

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 the schema provides descriptions for all parameters (100% coverage), those descriptions are clearly unrelated to an HTTP status catalog (e.g., 'JSON text to validate' suggests a validation tool). This actively misleads the agent about parameter purpose and functionality, so the descriptions subtract value rather than add meaning.

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 clearly identifies the resource (common HTTP status codes) and the scope (short catalog), but it lacks an explicit verb like 'retrieves' or 'lists.' The presence of unrelated parameters (url, host, json, zone) adds ambiguity, though the core purpose is still discernible.

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 on when to use this tool versus the sibling tools. The description does not mention any conditions, alternatives, or exclusion criteria, leaving the agent without direction on tool selection.

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