otx_pivot_url

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

With no annotations provided, the description carries the behavioral disclosure burden. It does disclose what the tool returns (pulse context, actors, malware families, domain pivot suggestion), which is helpful for a read-style enrichment tool. However, it does not mention whether it makes external network calls, requires authentication, or has rate limitations; those are left unstated.

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 sentence that front-loads the core purpose and lists the key outputs without filler. Every clause contributes useful information.

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?

For a simple one-parameter enrichment tool, the description covers the purpose, the input type, and the expected outputs. Since there is no output schema, the explicit list of returned context is valuable and mostly sufficient, though it could be slightly stronger by noting that the URL must already be normalized or by clarifying the output format.

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 input schema already documents the url parameter and its http/https requirement with 100% coverage. The description adds contextual meaning by explaining the enrichment purpose, but it does not add new parameter-level details beyond what the schema already contains. Baseline 3 is appropriate since the schema handles parameter semantics well.

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 states the tool performs OTX enrichment on a URL and lists the specific outputs: pulse context, attributed actors, malware families, and domain pivot suggestion. This distinguishes it from sibling pivot tools like otx_pivot_ip, otx_pivot_domain, otx_pivot_hash by making the URL focus explicit.

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 phrase 'OTX enrichment for a URL' clearly establishes when this tool is appropriate: when an agent has a URL and needs OTX context. The mention of 'suggests domain pivot' also hints at a follow-up action. However, it does not explicitly exclude or compare against sibling pivot tools, so some inference is still required.

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