whatweb

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

No annotations are provided, and the description fails to disclose behavioral traits. It doesn't mention that this is a read-only reconnaissance operation, nor does it explain the role of 'consent' or potential rate limits.

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 phrase, but it is underspecified rather than concise. It fails to pack necessary information into its brevity, missing opportunities to explain usage or parameters.

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 three parameters and no output schema, the description is insufficiently complete. It does not explain what the tool returns, how 'consent' is used, or any error conditions, leaving significant gaps for agent understanding.

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 description adds no meaning beyond the schema parameter names. With 0% schema description coverage, the three parameters (url, session_id, consent) are entirely undocumented, leaving the agent to guess their purpose and constraints.

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 'Web technology fingerprinting' clearly states the tool's purpose: identifying technologies used by a website. It distinguishes from sibling tools like nmap or nikto which are more general network or vulnerability scanners.

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 provides no guidance on when to use this tool or when to use alternatives. There is no context about prerequisites, such as requiring an active session or consent handling.

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