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sanctions_vessel

Check whether a vessel is listed on sanctions databases using its IMO number or name to ensure compliance.

Instructions

Check if a vessel is on sanctions lists by IMO number or vessel name.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
identifierYesVessel name or IMO number
Behavior2/5

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

No annotations are provided, so the description bears full responsibility. It states it 'checks' but does not disclose whether the operation is read-only, what the response format is, or any limitations (e.g., real-time vs cached). Minimal behavioral context beyond the basic purpose.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single, efficient sentence with no unnecessary words. It front-loads the core action and resource, achieving high conciseness.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

With no output schema and no annotations, the description lacks completeness. It does not hint at the return value (e.g., boolean, list of sanctions), pagination, or error conditions. For a simple check tool, more context is needed for reliable invocation.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100% for the single parameter 'identifier'. The description adds 'by IMO number or vessel name', which aligns with the schema description. No additional semantics or constraints are provided beyond what the schema already conveys.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the verb 'Check', the resource 'vessel', and the method 'by IMO number or vessel name'. It distinctly separates from sibling tools like sanctions_entity or sanctions_search by focusing specifically on vessels.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies usage when checking a specific vessel, but does not provide explicit guidance on when to use this tool versus siblings like sanctions_search. No when-not-to-use or alternative recommendations are given.

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

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