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

No annotations are provided, so the description must carry the behavioral disclosure burden, but it only says 'short catalog' and reveals nothing about side effects, input handling, or what happens to passed values. The input schema hints at 'discarded' values and 'no disk access', but the main description does not disclose these behaviors.

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, which is structurally simple and front-loaded, but the brevity is under-specification rather than useful compression. It omits essential information about what the tool does with its inputs and how it relates to the rest of the toolset.

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?

With no output schema, seven heterogeneous parameters, and a one-sentence description, an agent has insufficient information to know what inputs to provide or what the tool will return. The mismatch between the 'HTTP status codes' description and the URL/city/JSON/path parameters makes the tool nearly impossible to invoke correctly with confidence.

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 effectively 100%. The main description adds no parameter-level meaning, but the schema already explains each parameter's role at a basic level, keeping this at the baseline score.

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 a catalog of common HTTP status codes, but lacks an action verb and does not clarify how the seven unrelated input parameters fit. It also does not distinguish itself from siblings like fetch-status, leaving the tool's actual function ambiguous.

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 on when to use this tool versus alternatives such as fetch-status or validate-json. The description does not state whether it should be used to look up status codes, validate inputs, or normalize URLs, so an agent cannot make an informed selection.

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