list_vehicle_owners

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It only states the action without mentioning whether it is read-only, what the output looks like (e.g., full customer objects vs. IDs), or any semantics around 'associated' (e.g., historical vs. current owners). These are gaps for a list operation with zero annotation coverage.

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 gets straight to the point. It uses the imperative 'List' and front-loads the action and resource, with zero filler or redundant phrasing.

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 list tool, the description covers the core purpose but leaves some gaps. It does not specify the shape of the returned customers (e.g., full objects, references), nor clarify what 'associated' means (current vs. historical). Without an output schema, a bit more detail on the return value would improve completeness.

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 schema already describes the sole parameter (vehicleId) with a matching description ('The vehicle ID to list owners for'). The tool description adds no additional meaning beyond that, so it meets the baseline of 3 given high schema coverage.

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 action (list) and the resource (customers), scoped to 'a specific vehicle'. It is distinct from sibling tools like list_vehicles_for_customer, which does the reverse. The verb and object are specific and unambiguous.

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 versus alternatives such as list_vehicles_for_customer or get_customer. It does not mention any exclusions, prerequisites, or conditions that would steer an agent toward or away from this tool.

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