vt_url

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

No annotations provided; description only says 'submit ... and get analysis results', lacking details on synchronous/asynchronous behavior, rate limits, or whether it triggers a new scan. More behavioral context needed.

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?

Two well-structured sentences with no extraneous content. Front-loaded with action and purpose.

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 only one parameter and no output schema, description adequately covers input, action, and output expectations. Could mention if scanning is immediate or queued, but overall sufficient for simple tool.

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 coverage is 100% and description adds minimal value beyond schema's 'URL to scan'. No parameter-level details like format or validation beyond what schema provides.

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?

Clearly states the verb 'submit', resource 'URL', and purpose 'scanning and get analysis results' with expected output categories. Differentiates from sibling tools (vt_domain, vt_ip) which focus on other entities.

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?

Only mentions requirement of VT_API_KEY. No guidance on when to use this tool versus alternatives like vt_domain or vt_ip, and no scenario-specific instructions.

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