list_vehicle_brands

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 claims to 'list all available vehicle brands,' but the pagination parameters in the schema suggest results are page-based, which is not disclosed. The read-only nature and any rate limits or authentication requirements are also not mentioned.

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 concise sentence that is front-loaded with the primary action and resource. Every word is necessary, and there is no filler or redundant 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?

Given that there is no output schema and no annotations, the description is too minimal. It does not mention pagination behavior, response structure, or any filtering options, leaving the agent uncertain about the return format and the effect of the page and items parameters.

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 coverage is 100%—both the 'page' and 'items' parameters have descriptions. The tool description adds no additional meaning beyond what the schema already provides, so a baseline score of 3 is appropriate.

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 uses the specific verb 'List' and explicitly names the resource 'available vehicle brands,' making the tool's function immediately clear. It also distinguishes itself from sibling tools like list_resident_vehicles and search_vehicles by focusing specifically on the brand catalog.

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 intended usage is implied by the name and description: use it when you need the complete list of vehicle brands. However, there is no explicit guidance on when not to use it or how it compares to related tools like search_vehicles.

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