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

No annotations are provided, so the description carries the full burden. It discloses that page content is not stored, which is a useful negative guarantee, but it does not state whether the tool makes network requests, has side effects, or requires authentication. The schema hints that many parameters are discarded, but that is in the schema, not the description. Minimal behavioral disclosure beyond one fact.

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 concise, two sentences, with no fluff. The main action is front-loaded, and the additional note about not storing content is relevant. However, the brevity omits critical context, so it is efficient but not effective.

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 tool has nine optional parameters, many of which seem unrelated to the described function (city, feed, json, path, zone, query). The description does not explain why these exist or how they relate to citation. There is no output schema, so the return format is unknown. The description is incomplete for an agent to call this tool correctly.

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?

Schema description coverage is 100%, so the baseline is 3. The description adds no parameter-specific information; it does not mention any of the nine parameters or their roles. The schema descriptions are detailed, but the description does not synthesize them or explain which parameters are actually used for the core function.

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 a specific action: return host, scheme, and HTTP status for a URL. However, it does not differentiate from sibling tools like fetch-status or web-fetch, and the tool name 'citation' suggests a different purpose. The action is clear but the distinctive purpose is not.

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 alternatives. There is no mention of prerequisites, conditions, or comparisons to sibling tools. An agent would have to infer usage from the name and description.

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